A Novel Chromium(III) Hybrid Salt, Triethylammonium <i>Trans</i>-Diaquabis(Oxalato-<i>κ</i><sup>2</sup>O<sup>1</sup>,O<sup>2</sup>) Chromate(III), (C<SUB>6</SUB>H<SUB>16</SUB>N)[Cr(C<SUB>2</SUB>O<SUB>4</SUB>)<SUB>2</SUB>(H<SUB>2</SUB>O) <SUB>2</SUB>]: Synthesis, Spectroscopic Studies, Thermal Behavior and Crystal Structure

作     者：Pierre R. Ndong Martin Signé Patrice T. Kenfack Yves A. Mbiangué Gouet Bebga Emmanuel Wenger Pierre R. Ndong;Martin Signé;Patrice T. Kenfack;Yves A. Mbiangué;Gouet Bebga;Emmanuel Wenger

作者机构：Department of Inorganic Chemistry Faculty of Science University of Yaounde I Yaounde Cameroon Department of Chemistry Faculty of Science University of Dschang Dschang Cameroon Department of Chemistry Higher Teachers’ Training College University of Maroua Maroua Cameroon Department of Chemistry Higher Teacher Training College University of Yaounde I Yaounde Cameroon CRM² Université de Lorraine CNRS Nancy France 

出 版 物：《Open Journal of Inorganic Chemistry》 (无机化学期刊（英文）)

年 卷 期：2020年第10卷第4期

页      面：39-51页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：Hybrid Salt Chromium(III) Oxalate Complex Triethylammonium Static Disorder Spectroscopy Crystal Structure Thermal Study 

摘      要：A novel organic-inorganic chromium(III) hybrid salt, triethylammonium trans-diaquabis(oxalato-κ2O1,O2)chromate(III), (C6H16N)[Cr(C2O4)2(H2O)2] (1), has been synthesized in aqueous solution and characterized by elemental and thermal analyses, FTIR and UV-Vis spectroscopies, and by single crystal X-ray structure determination. Compound 1 crystallizes in the orthorhombic system, Pbcn space group with the unit cell parameters a = 11.1776(10), b = 7.6105(10), c = 17.5654(2) Å, α = β = γ = 90°, V = 1494.24(3) Å3, Z = 4 and Z’ = 1/2. The structure of 1 consists of [Cr(C2O4)2(H2O)2]− mononuclear anions and triethylammonium [(C2H5)3NH]+ cations. In the anionic unit, the CrIII ion is six coordinated, in a distorted octahedral geometry, by four equatorial O atoms of two oxalate anions acting as chelating ligands and two O atoms from trans-coordinated water molecules occupying the apical positions with longer metal-oxygen distances. In the solid, O-H … O and N-H … O intra and inter molecular hydrogen bonding interactions connect the components into a 3D network. The triethylammonium cations are disordered among two possible orientations with occupancies rates around 50% for C4, N1, C1a, C1b, C4ii, N1ii, C1aii, C1bii (ii = −x + 1, y, s