Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, МоО2((СH3)3CCOO)2

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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.

作者简介

D. Kayumova

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

I. Malkerova

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

D. Yambulatov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

A. Sidorov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

I. Eremenko

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

A. Alikhanyan

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: sidorov@igic.ras.ru
俄罗斯联邦, Moscow

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