Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, МоО2((СH3)3CCOO)2
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| 1. | Title | Title of document | Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, МоО2((СH3)3CCOO)2 |
| 2. | Creator | Author's name, affiliation, country | D. B. Kayumova; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | I. P. Malkerova; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | D. S. Yambulatov; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | A. A. Sidorov; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | I. L. Eremenko; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 2. | Creator | Author's name, affiliation, country | A. S. Alikhanyan; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Russian Federation |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | TG; DSC; mass spectrometry; molybdenum carboxylates; standard enthalpy of formation; evaporation |
| 4. | Description | Abstract | Dimolybdenum tetratrimethylacetate (tetrapivalate) and tetratrifluoroacetate are synthesized, and their evaporation is studied by the Knudsen effusion method with mass spectral analysis of the gas phase. The standard enthalpies of formation of crystalline and gaseous Мо2(СF3COO)4 are estimated for the first time by the study of dissociative ionization. The solid-phase reactions of silver pivalate (CН3)3СCOOAg with molybdenum are studied by thermography (TG), differential scanning calorimetry (DSC), and mass spectrometry. The reaction in a temperature range of 410–480 K affords molybdenum oxopivalate МоО2Piv2. The obtained experimental data make it possible to estimate the standard enthalpy of formation of this compound: ΔfH°298 (МоО2Рiv2, cr) = –1476 kJ/mol. |
| 5. | Publisher | Organizing agency, location | The Russian Academy of Sciences |
| 6. | Contributor | Sponsor(s) |
Russian Science Foundation (21-13-00086) |
| 7. | Date | (DD-MM-YYYY) | 15.01.2024 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | Research Article |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://vestnikugrasu.org/0132-344X/article/view/667624 |
| 10. | Identifier | Digital Object Identifier (DOI) | 10.31857/S0132344X24010021 |
| 10. | Identifier | eLIBRARY Document Number (EDN) | OSWCRZ |
| 11. | Source | Title; vol., no. (year) | Koordinacionnaâ himiâ; Vol 50, No 1 (2024) |
| 12. | Language | English=en | ru |
| 13. | Relation | Supp. Files |
Fig. 1. View of the isotherm of complete sublimation of a suspension of dimolybdenum tetrapivalate (T = 410 K): ○ - Mo2L4+; ∆ - Mo2L3+; × - Mo2L+. (104KB) Fig. 2. DSC curves for the first and second mixtures (sample No. 3 is shown in green, No. 4 in red) obtained for the powder at a heating rate of 5 K/min. (321KB) Fig. 3. Dependence of the heat of reaction (3) on the initial mass of silver pyvalate. (96KB) |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
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