Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, МоО2((СH3)3CCOO)2
- Authors: Kayumova D.B.1, Malkerova I.P.1, Yambulatov D.S.1, Sidorov A.A.1, Eremenko I.L.1, Alikhanyan A.S.1
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Affiliations:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Issue: Vol 50, No 1 (2024)
- Pages: 11-18
- Section: Articles
- URL: https://journals.rcsi.science/0132-344X/article/view/260956
- DOI: https://doi.org/10.31857/S0132344X24010021
- EDN: https://elibrary.ru/OSWCRZ
- ID: 260956
Cite item
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.
About the authors
D. B. Kayumova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
I. P. Malkerova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
D. S. Yambulatov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
A. A. Sidorov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
I. L. Eremenko
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
A. S. Alikhanyan
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: sidorov@igic.ras.ru
Russian Federation, Moscow
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