Thursday, 26 October 2006
OLCC-McClain (Oakley-Lindsay Center)
44

Binuclear and polymeric copper complexes with β-alanine carboxy and chloro bridges, [Cl–Cu)2(β-A)4]2+ 2Cl– and [CuCl2(β-A)]n

Xiao Di, Feng Liu, Zahra Afrasiabi, and Ekkehard Sinn. UMR, Rolla, MO

A novel dinuclear Cu complex contains [(Cl–Cu)2(β-A)4]2+ cations balanced by Cl– anions. The copper atoms in the cation center are bridged by the carboxylates of β-alanine, in the copper acetate lantern structure, though the separation is larger than in [H2O–Cu)2(CH3COO)4]. Each copper atom is coordinated to four neutral Zwitterionic β-alanine ligands and to one apical choride to form a roughly square pyramidal geometry. The structure contrasts dramatically with the related copper chloride complex of β-alanine [CuCl2(β-A)]n which is a coordination polymer with carboxylate and chloro bridges.


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