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Crystal Structure, Lattice Energy, and Standard Molar Enthalpy of Formation of the Complex (C 11 H 18 NO) 2 CuCl 4 (s)
Author(s) -
Dan Wenyan,
Chen Jingtao,
Di Youying,
Kong Yuxia,
Wang Qiang,
Yang Weiwei,
Wang Daqi
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090192
Subject(s) - chemistry , thermochemical cycle , lattice energy , standard enthalpy of formation , enthalpy , dissolution , enthalpy change of solution , crystal structure , ionic radius , ionic bonding , standard enthalpy of reaction , ionic compound , thermochemistry , standard enthalpy change of formation , thermodynamics , crystallography , ion , organic chemistry , catalysis , hydrogen production , physics
The complex (C 11 H 18 NO) 2 CuCl 4 (s), which may be a potential effective drug, was synthesized. X‐ray crystallography, elemental analysis, and chemical analysis were used to characterize the structure and composition of the complex. Lattice energy and ionic radius of the anion of the complex were derived from the crystal data of the title compound. In addition, a reasonable thermochemical cycle was designed, and standard molar enthalpies of dissolution for reactants and products of the synthesis reaction of the complex were measured by an isoperibol solution‐reaction calorimeter. The enthalpy change of the reaction was calculated to be Δ r H ⊖ m =(2.69±0.02) kJ·mol −1 from the data of the above standard molar enthalpies of dissolution. Finally, the standard molar enthalpy of formation of the title compound was determined to be Δ r H ⊖ m [(C 11 H 18 NO) 2 CuCl 4 , s]= − (1822.96±6.80) kJ·mol −1 in accordance with Hess law.