D. B. Kayumova, I. P. Malkerova, D. S. Yambulatov, A. A. Sidorov, I. L. Eremenko, A. S. Alikhanyan
{"title":"钼羧酸盐Мо2((СH3)3CCOO)4、Мо2(СF3COO)4 和МоО2((СH3)3CCOO)2 的合成与热力学特性","authors":"D. B. Kayumova, I. P. Malkerova, D. S. Yambulatov, A. A. Sidorov, I. L. Eremenko, A. S. Alikhanyan","doi":"10.1134/S1070328423600924","DOIUrl":null,"url":null,"abstract":"<p>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 Мо<sub>2</sub>(СF<sub>3</sub>COO)<sub>4</sub> are estimated for the first time by the study of dissociative ionization. The solid-phase reactions of silver pivalate (CН<sub>3</sub>)<sub>3</sub>СCOOAg 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 МоО<sub>2</sub>Piv<sub>2</sub>. The obtained experimental data make it possible to estimate the standard enthalpy of formation of this compound: <span>\\({{\\Delta }_{f}}H_{{298}}^{^\\circ }\\)</span>(МоО<sub>2</sub>Рiv<sub>2</sub>, cr) = –1476 kJ/mol.</p>","PeriodicalId":759,"journal":{"name":"Russian Journal of Coordination Chemistry","volume":"50 1","pages":"7 - 14"},"PeriodicalIF":1.1000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, and МоО2((СH3)3CCOO)2\",\"authors\":\"D. B. Kayumova, I. P. Malkerova, D. S. Yambulatov, A. A. Sidorov, I. L. Eremenko, A. S. Alikhanyan\",\"doi\":\"10.1134/S1070328423600924\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 Мо<sub>2</sub>(СF<sub>3</sub>COO)<sub>4</sub> are estimated for the first time by the study of dissociative ionization. The solid-phase reactions of silver pivalate (CН<sub>3</sub>)<sub>3</sub>СCOOAg 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 МоО<sub>2</sub>Piv<sub>2</sub>. The obtained experimental data make it possible to estimate the standard enthalpy of formation of this compound: <span>\\\\({{\\\\Delta }_{f}}H_{{298}}^{^\\\\circ }\\\\)</span>(МоО<sub>2</sub>Рiv<sub>2</sub>, cr) = –1476 kJ/mol.</p>\",\"PeriodicalId\":759,\"journal\":{\"name\":\"Russian Journal of Coordination Chemistry\",\"volume\":\"50 1\",\"pages\":\"7 - 14\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Coordination Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1070328423600924\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Coordination Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1070328423600924","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Synthesis and Thermodynamic Characteristics of Molybdenum Carboxylates Мо2((СH3)3CCOO)4, Мо2(СF3COO)4, and МоО2((СH3)3CCOO)2
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: \({{\Delta }_{f}}H_{{298}}^{^\circ }\)(МоО2Рiv2, cr) = –1476 kJ/mol.
期刊介绍：
Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.
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