Metal Complexes in Acetic Acid. I. Kinetics and Mechanism of Reactions of Tetra-μ-acetato-dicopper(II) with Lithium Chloride and Hydrogen Chloride

Autor:	Kiyoshi Sawada, Pradyot Banerjee, Shigenobu Funahashi, Tetsuo. Nishimoto, Motoharu Tanaka
Rok vydání:	1980
Předmět:	Dimer Inorganic chemistry Kinetics chemistry.chemical_element General Chemistry Copper Medicinal chemistry Metal Acetic acid chemistry.chemical_compound Monomer chemistry visual_art visual_art.visual_art_medium Lithium chloride Hydrogen chloride
Zdroj:	Bulletin of the Chemical Society of Japan. 53:1555-1559
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.53.1555
Popis:	Kinetics of reactions of tetra-μ-acetato-dicopper(II) (copper(II) acetate dimer: Cu2(OAc)4) with lithium chloride and hydrogen chloride (XCl where X denotes Li or H) in acetic acid have been studied spectrophotometrically by using a stopped-flow technique with a computer-assisted averaging device. The rate of decomposition of copper(II) acetate dimer to the monomeric chloro complex is expressed as −d[Cu2(OAc)4]/dt=kXCl[Cu2(OAc)4][XCl]. At 25 °C kLiCl=(3.5±0.6)×105 mol−1 kg s−1 (ΔH\eweq=50±10 kJ mol−1 and ΔS\eweq=30±20 J mol−1 K−1) and kHCl=(4.8±1.0)×105 mol−1 kg s−1 (ΔH\eweq=23±10 kJ mol−1 and ΔS\eweq=−60±20 J mol−1 K−1). Mechanisms are proposed for the decomposition of copper(II) acetate dimer and some discussions are made on the difference in reactivities of LiCl and HCl.
Databáze:	OpenAIRE
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