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

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

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.

Авторлар туралы

D. Kayumova

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

Email: sidorov@igic.ras.ru
Ресей, Moscow

I. Malkerova

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

Email: sidorov@igic.ras.ru
Ресей, Moscow

D. Yambulatov

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

Email: sidorov@igic.ras.ru
Ресей, Moscow

A. Sidorov

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

Хат алмасуға жауапты Автор.
Email: sidorov@igic.ras.ru
Ресей, Moscow

I. Eremenko

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

Email: sidorov@igic.ras.ru
Ресей, Moscow

A. Alikhanyan

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

Email: sidorov@igic.ras.ru
Ресей, Moscow

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