# Cs–Mo–O system

> Cs–Mo–O system: 102 accepted literature values (crystal structure 38, formation 26, invariant reaction 26, heat capacity / entropy / enthalpy 12) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

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102 accepted literature values from 1 paper(s) (experimental 78, model 20, unspecified 4); 0 calculated phase diagram(s).

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Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 78 |
| model | 20 |
| unspecified | 4 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 26 |
| formation | 26 |
| heat capacity / entropy / enthalpy | 12 |
| crystal structure | 38 |

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Cs–Mo–O system (26)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 848 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | experimental | [1] Smith 2021; _cites Spitsyn 1951_ | Table 7, p. 7, row 47; `ORC-36FJRGBUZS` |  |
| 846 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 48; `ORC-FDDXIRNBHK` |  |
| 837 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 49; `ORC-VDFWVM4VHW` |  |
| 836.2 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | model | [1] Smith 2021 | Table 7, p. 7, row 45; `ORC-4G3VK5H633` |  |
| 836 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 53; `ORC-4SSVLZQH6Y` |  |
| 835 | peritectic: Cs2Mo7O22 = MoO3 + Liq |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 46; `ORC-5SZJMA2EXP` |  |
| 823 | peritectic: Cs2Mo5O16 = Cs2Mo7O22 + Liq. |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 43; `ORC-LC4DURYLTC` |  |
| 818 | peritectic: Cs2Mo5O16 = Cs2Mo7O22 + Liq. |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 44; `ORC-RP34HYG22S` |  |
| 813 | peritectic: Cs2Mo5O16 = Cs2Mo7O22 + Liq. |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 52; `ORC-KYDIQBRWBR` |  |
| 810 | peritectic: Cs2Mo5O16 = Cs2Mo7O22 + Liq. |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 42; `ORC-ID32CS2HDB` |  |
| 808.7 | peritectic: Cs2Mo5O16 = Cs2Mo7O22 + Liq. |  | model | [1] Smith 2021 | Table 7, p. 7, row 41; `ORC-ZAWDONUCWQ` |  |
| 798 | eutectic: Liq. = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 33; `ORC-KH7OONCYEH` |  |
| 797 | peritectoid: Cs2Mo4O13 = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 38; `ORC-FIGTRF2HKT` |  |
| 796 | eutectic: Liq. = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Spitsyn 1951_ | Table 7, p. 7, row 34; `ORC-H4M6T572QY` |  |
| 793.2 | eutectic: Liq. = Cs2Mo3O10 + Cs2Mo5O16 |  | model | [1] Smith 2021 | Table 7, p. 7, row 32; `ORC-7HGJSYS7QJ` |  |
| 792 | eutectic: Liq. = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 35; `ORC-3ONKAJZJNP` |  |
| 787 | peritectoid: Cs2Mo4O13 = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 40; `ORC-PAWX6A2GJF` |  |
| 783.9 | peritectoid: Cs2Mo4O13 = Cs2Mo3O10 + Cs2Mo5O16 |  | model | [1] Smith 2021 | Table 7, p. 7, row 36; `ORC-APXMVNZ4S3` |  |
| 781 | peritectoid: Cs2Mo4O13 = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 7, p. 7, row 39; `ORC-HARO5QORDA` |  |
| 776 | peritectoid: Cs2Mo4O13 = Cs2Mo3O10 + Cs2Mo5O16 |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 37; `ORC-KSZL5J3NVV` |  |
| 736 | eutectic: Liq. = β-Cs2Mo2O7 + Cs2Mo3O10 |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 26; `ORC-7D556JT4L6` |  |
| 736 | eutectic: Liq. = β-Cs2Mo2O7 + Cs2Mo3O10 |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 25; `ORC-7JLD2MTTBU` |  |
| 733 | eutectic: Liq. = α-Cs2MoO4 + β-Cs2Mo2O7 |  | experimental | [1] Smith 2021; _cites Salmon 1969_ | Table 7, p. 7, row 14; `ORC-MC4BKZEEW4` |  |
| 732.5 | eutectic: Liq. = β-Cs2Mo2O7 + Cs2Mo3O10 |  | model | [1] Smith 2021 | Table 7, p. 7, row 24; `ORC-6KJBCKFBH7` |  |
| 732.2 | eutectic: Liq. = α-Cs2MoO4 + β-Cs2Mo2O7 |  | model | [1] Smith 2021 | Table 7, p. 7, row 12; `ORC-B5ZC3XRH6Q` |  |
| 731 | eutectic: Liq. = α-Cs2MoO4 + β-Cs2Mo2O7 |  | experimental | [1] Smith 2021; _cites Hoekstra 1973_ [doi](https://doi.org/10.1016/0020-1650%2873%2980013-3) | Table 7, p. 7, row 13; `ORC-XJY5LQSXMI` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Cs–Mo–O system (26)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Cs2Mo3O10 |  | -205.145 kJ/mol-atom ± 0.231333 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 2, p. 4, row 7; `ORC-FCUMTYYQOQ` |  |
| Cs2Mo3O10 |  | -205.145 kJ/mol-atom ± 1.49 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 3, p. 4, row 9; `ORC-QUO36F2QIZ` |  |
| Cs2Mo3O10 |  | -205.04 kJ/mol-atom ± 0.433333 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 2, p. 4, row 8; `ORC-4JYFKDEKYZ` |  |
| Cs2Mo3O10 |  | -205.04 kJ/mol-atom ± 1.54 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 3, p. 4, row 10; `ORC-KLKDOJY7RQ` |  |
| Cs2Mo3O10 |  | -204 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 5; `ORC-GIHY2VBLH3.d1afbc` |  |
| Cs2Mo4O13 |  | -201.453 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 7; `ORC-NVBN5ZONE2.87e63d` |  |
| Cs2Mo5O16 |  | -200.074 kJ/mol-atom ± 1.61957 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 3, p. 4, row 12; `ORC-65GEBSSIXG` |  |
| Cs2Mo5O16 |  | -200.074 kJ/mol-atom ± 0.25913 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 2, p. 4, row 9; `ORC-BR3MXRRG4M` |  |
| Cs2Mo5O16 |  | -199.357 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 8; `ORC-55N4K2ORKO.0484e7` |  |
| Cs2Mo7O22 |  | -196.4 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 10; `ORC-F4SW7LX7K6.2acd47` |  |
| Cs2Mo7O22 |  | -196.36 kJ/mol-atom ± 0.283548 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 2, p. 4, row 10; `ORC-4PRPIXFB6Y` |  |
| Cs2Mo7O22 |  | -196.36 kJ/mol-atom ± 1.68258 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 3, p. 4, row 13; `ORC-OG46CHWRY7` |  |
| α-Cs2Mo2O7 |  | -209.309 kJ/mol-atom ± 1.35455 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Cordfunke 1990_ | Table 3, p. 4, row 5; `ORC-PSQWMPCE3S` |  |
| α-Cs2Mo2O7 |  | -209.309 kJ/mol-atom ± 0.190909 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 4; `ORC-SBRG56PJJC.1f222d` |  |
| α-Cs2Mo2O7 |  | -209.291 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 3; `ORC-OJNKBXOLZS.247ce0` |  |
| α-Cs2Mo2O7 |  | -209.258 kJ/mol-atom ± 0.215455 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 2, p. 4, row 5; `ORC-DZO2AKUFUP` |  |
| α-Cs2Mo2O7 |  | -209.258 kJ/mol-atom ± 1.37 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 3, p. 4, row 6; `ORC-Z6R7MNZ43B` |  |
| α-Cs2Mo2O7 |  | -209.236 kJ/mol-atom ± 1.40909 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 3, p. 4, row 7; `ORC-ITFSKMKX4O` |  |
| α-Cs2Mo2O7 |  | -209.236 kJ/mol-atom ± 0.427273 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 2, p. 4, row 6; `ORC-Y6H4ATJXYG` |  |
| α-Cs2MoO4 |  | -216.829 kJ/mol-atom | 298.15 | model |  |  | [1] Smith 2021 | Table 8, p. 7, row 1; `ORC-OIMQNJKWY5.e2faec` |  |
| α-Cs2MoO4 |  | -216.384 kJ/mol-atom ± 0.22 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2018_ [doi](https://doi.org/10.1016/j.jct.2018.01.016) | Table 2, p. 4, row 2; `ORC-C3K2DUTL77` |  |
| α-Cs2MoO4 |  | -216.384 kJ/mol-atom ± 1.07714 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 3, p. 4, row 2; `ORC-KUSMOPRYMX` |  |
| α-Cs2MoO4 |  | -216.357 kJ/mol-atom ± 1.06429 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Cordfunke 1990_ | Table 3, p. 4, row 1; `ORC-DLZBZMMWJQ` |  |
| α-Cs2MoO4 |  | -216.357 kJ/mol-atom ± 0.142857 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 1; `ORC-FDJUNXIPO3.2aff22` |  |
| α-Cs2MoO4 |  | -216.223 kJ/mol-atom ± 0.158571 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 2, p. 4, row 3; `ORC-5MIFXWX3RY` |  |
| α-Cs2MoO4 |  | -216.223 kJ/mol-atom ± 1.07429 | 298.15 | experimental |  |  | [1] Smith 2021; _cites Benigni 2020_ [doi](https://doi.org/10.1021/acs.jced.0c00210) | Table 3, p. 4, row 3; `ORC-NG7CE6ENUV` |  |

## Other properties

### Heat capacity / entropy / enthalpy (12)

Table: Heat capacity / entropy / enthalpy, Cs–Mo–O system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: S°m (298.15 K)_ | 27.6533 J/mol-atom/K | 298.15 | Cs2Mo3O10; _alloy: Mo 0.2, O 0.666667_ | model | [1] Smith 2021 | Table 8, p. 7, row 5; `ORC-GIHY2VBLH3.73f9b0` |  |
| Entropy; _printed: S°m (298.15 K)_ | 24.8211 J/mol-atom/K | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | model | [1] Smith 2021 | Table 8, p. 7, row 7; `ORC-NVBN5ZONE2.6f9f7b` |  |
| Entropy; _printed: S°m (298.15 K)_ | 23.5261 J/mol-atom/K | 298.15 | Cs2Mo5O16; _alloy: Mo 0.217391, O 0.695652_ | model | [1] Smith 2021 | Table 8, p. 7, row 8; `ORC-55N4K2ORKO.c9d025` |  |
| Entropy; _printed: S°m (298.15 K)_ | 22.1613 J/mol-atom/K | 298.15 | Cs2Mo7O22; _alloy: Mo 0.225806, O 0.709677_ | model | [1] Smith 2021 | Table 8, p. 7, row 10; `ORC-F4SW7LX7K6.f4d623` |  |
| Entropy; _printed: S°m (298.15 K)_ | 28.6909 J/mol-atom/K | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | model | [1] Smith 2021 | Table 8, p. 7, row 3; `ORC-OJNKBXOLZS.0f0578` |  |
| Entropy; _printed: S°m_ | 28.8545 J/mol-atom/K ± 0.390909 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 4; `ORC-SBRG56PJJC.e589da` |  |
| Entropy; _printed: S°m (298.15 K)_ | 28.8545 J/mol-atom/K ± 0.390909 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | model | [1] Smith 2021 | Table 8, p. 7, row 4; `ORC-XOTSA4CHXU` |  |
| Entropy; _printed: S°m (298.15 K)_ | 35.4786 J/mol-atom/K ± 0.0428571 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | model | [1] Smith 2021 | Table 8, p. 7, row 2; `ORC-CXQU6ADXNW` |  |
| Entropy; _printed: S°m_ | 35.4786 J/mol-atom/K ± 0.0428571 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 1; `ORC-FDJUNXIPO3.53d3e9` |  |
| Entropy; _printed: S°m (298.15 K)_ | 35.3571 J/mol-atom/K | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | model | [1] Smith 2021 | Table 8, p. 7, row 1; `ORC-OIMQNJKWY5.e7fbfd` |  |
| Heat capacity; _printed: C°p,m_ | 211.9 unknown ± 0.190909 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 4; `ORC-SBRG56PJJC.c74d34` |  |
| Heat capacity; _printed: C°p,m_ | 148.67 unknown ± 0.0214286 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Cordfunke 1990_ | Table 2, p. 4, row 1; `ORC-FDJUNXIPO3.d7bd91` |  |

### Crystal structure (38)

Table: Crystal structure, Cs–Mo–O system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 1.4472 not_printed ± 2.000e-4 | 298.15 | Cs2Mo3O10; _alloy: Mo 0.2, O 0.666667_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 5; `ORC-5HFMZZEXQG.2bad49` |  |
| Lattice a | 4.592 not_printed ± 0.005 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | unspecified | [1] Smith 2021; _cites Marrot 1995_ [doi](https://doi.org/10.1107/s0108270195004811) | Table 1, p. 3, row 7; `ORC-SEHCWOKNIV.569fe0` |  |
| Lattice a | 0.8396 not_printed ± 5.000e-4 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.31c01a` |  |
| Lattice a | 2.1444 not_printed ± 2.000e-4 | 298.15 | Cs2Mo5O16; _alloy: Mo 0.217391, O 0.695652_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 8; `ORC-DVN5UNWIEX.aa2fa0` |  |
| Lattice a | 2.1546 not_printed ± 1.000e-4 | 298.15 | Cs2Mo7O22; _alloy: Mo 0.225806, O 0.709677_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 9; `ORC-ZSCU63UGQW.91fe93` |  |
| Lattice a | 1.556 not_printed ± 2.000e-4 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 3; `ORC-ITHEJVR7WF.15af98` |  |
| Lattice a | 1.15623 not_printed ± 8.000e-5 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 1; `ORC-SR6R2V4X2A.00a8fc` |  |
| Lattice a | 0.799136 not_printed ± 1.100e-5 | 683 | β-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 4; `ORC-UNQRY2XNYT.daa6d9` |  |
| Lattice a | 0.684 not_printed ± 1.000e-4 | 948 | β-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Wallez 2014_ [doi](https://doi.org/10.1016/j.jssc.2014.04.003) | Table 1, p. 3, row 2; `ORC-XJEJBR6UNY.87e34c` |  |
| Lattice b | 0.8404 not_printed ± 1.000e-4 | 298.15 | Cs2Mo3O10; _alloy: Mo 0.2, O 0.666667_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 5; `ORC-5HFMZZEXQG.fbf9fe` |  |
| Lattice b | 1.0418 not_printed ± 3.000e-4 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | unspecified | [1] Smith 2021; _cites Marrot 1995_ [doi](https://doi.org/10.1107/s0108270195004811) | Table 1, p. 3, row 7; `ORC-SEHCWOKNIV.a1d349` |  |
| Lattice b | 0.8655 not_printed ± 5.000e-4 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.1fec26` |  |
| Lattice b | 0.556 not_printed ± 4.000e-5 | 298.15 | Cs2Mo5O16; _alloy: Mo 0.217391, O 0.695652_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 8; `ORC-DVN5UNWIEX.f8835e` |  |
| Lattice b | 0.55385 not_printed ± 3.000e-5 | 298.15 | Cs2Mo7O22; _alloy: Mo 0.225806, O 0.709677_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 9; `ORC-ZSCU63UGQW.2bf275` |  |
| Lattice b | 1.5184 not_printed ± 1.000e-4 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 3; `ORC-ITHEJVR7WF.acea8b` |  |
| Lattice b | 0.65406 not_printed ± 4.000e-5 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 1; `ORC-SR6R2V4X2A.fcbc7c` |  |
| Lattice b | 1.5486 not_printed ± 2.100e-5 | 683 | β-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 4; `ORC-UNQRY2XNYT.1364ca` |  |
| Lattice b | 0.684 not_printed ± 1.000e-4 | 948 | β-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Wallez 2014_ [doi](https://doi.org/10.1016/j.jssc.2014.04.003) | Table 1, p. 3, row 2; `ORC-XJEJBR6UNY.749e6b` |  |
| Lattice c | 0.9464 not_printed ± 1.000e-4 | 298.15 | Cs2Mo3O10; _alloy: Mo 0.2, O 0.666667_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 5; `ORC-5HFMZZEXQG.9f04b4` |  |
| Lattice c | 0.7923 not_printed ± 8.000e-4 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | unspecified | [1] Smith 2021; _cites Marrot 1995_ [doi](https://doi.org/10.1107/s0108270195004811) | Table 1, p. 3, row 7; `ORC-SEHCWOKNIV.ca46e5` |  |
| Lattice c | 1.0413 not_printed ± 5.000e-4 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.4b4a2a` |  |
| Lattice c | 1.4339 not_printed ± 1.000e-4 | 298.15 | Cs2Mo5O16; _alloy: Mo 0.217391, O 0.695652_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 8; `ORC-DVN5UNWIEX.302ba7` |  |
| Lattice c | 1.89179 not_printed ± 9.000e-5 | 298.15 | Cs2Mo7O22; _alloy: Mo 0.225806, O 0.709677_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 9; `ORC-ZSCU63UGQW.d3331f` |  |
| Lattice c | 0.72244 not_printed ± 7.000e-5 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 3; `ORC-ITHEJVR7WF.fead74` |  |
| Lattice c | 0.84906 not_printed ± 5.000e-5 | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 1; `ORC-SR6R2V4X2A.42f251` |  |
| Lattice c | 0.724613 not_printed ± 1.100e-5 | 683 | β-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 4; `ORC-UNQRY2XNYT.cf1bbe` |  |
| Lattice c | 0.8977 not_printed ± 2.000e-4 | 948 | β-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Wallez 2014_ [doi](https://doi.org/10.1016/j.jssc.2014.04.003) | Table 1, p. 3, row 2; `ORC-XJEJBR6UNY.02a1ef` |  |
| lattice alpha | 106.158 not_printed ± 0.005 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.2cb6d6` |  |
| lattice beta | 97.731 not_printed ± 0.006 | 298.15 | Cs2Mo3O10; _alloy: Mo 0.2, O 0.666667_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 5; `ORC-5HFMZZEXQG.44b12f` |  |
| lattice beta | 92.94 not_printed ± 0.05 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | unspecified | [1] Smith 2021; _cites Marrot 1995_ [doi](https://doi.org/10.1107/s0108270195004811) | Table 1, p. 3, row 7; `ORC-SEHCWOKNIV.ca79f0` |  |
| lattice beta | 103.686 not_printed ± 0.005 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.322725` |  |
| lattice beta | 122.735 not_printed ± 0.005 | 298.15 | Cs2Mo5O16; _alloy: Mo 0.217391, O 0.695652_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 8; `ORC-DVN5UNWIEX.3cc751` |  |
| lattice beta | 122.744 not_printed ± 0.003 | 298.15 | Cs2Mo7O22; _alloy: Mo 0.225806, O 0.709677_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 9; `ORC-ZSCU63UGQW.2a4b2f` |  |
| lattice beta | 90.12 not_printed ± 0.007 | 298.15 | α-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2021_ [doi](https://doi.org/10.1016/j.tca.2020.178825) | Table 1, p. 3, row 3; `ORC-ITHEJVR7WF.9fc6b1` |  |
| lattice beta | 90 ° | 298.15 | α-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 1; `ORC-SR6R2V4X2A.993ccb` |  |
| lattice beta | 90 ° | 683 | β-Cs2Mo2O7; _alloy: Mo 0.181818, O 0.636364_ | experimental | [1] Smith 2021; _cites Smith 2017_ [doi](https://doi.org/10.1016/j.jssc.2017.05.032) | Table 1, p. 3, row 4; `ORC-UNQRY2XNYT.c66350` |  |
| lattice beta | 90 ° | 948 | β-Cs2MoO4; _alloy: Mo 0.142857, O 0.571429_ | experimental | [1] Smith 2021; _cites Wallez 2014_ [doi](https://doi.org/10.1016/j.jssc.2014.04.003) | Table 1, p. 3, row 2; `ORC-XJEJBR6UNY.36ec02` |  |
| lattice gamma | 109.761 not_printed ± 0.005 | 298.15 | Cs2Mo4O13; _alloy: Mo 0.210526, O 0.684211_ | experimental | [1] Smith 2021; _cites Pakhomova 2011_ [doi](https://doi.org/10.1134/s1066362211040035) | Table 1, p. 3, row 6; `ORC-VTHZOLAIVO.e92347` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. A.L. Smith, T.N. Pham Thi, C. Guéneau, J.-C. Dumas, E. Epifano, W. van Burik et al., Thermodynamic modelling assessment of the ternary system Cs-Mo-O, Calphad 75, 102350 (2021). [doi:10.1016/j.calphad.2021.102350](https://doi.org/10.1016/j.calphad.2021.102350)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).