title: Trans-(DL-isoleucinato-N,O)[tris(2-aminoethyl)amine-kappa(4)N]cobalt(III)diperchlorate..
abstract: The racemic title compound, trans-[N,N-bis(2-aminoethyl)-1,2-ethanediamine-kappa(4)N](DL-isoleucinato-N,O)cobalt(III) diperchlorate, [Co(C(6)H(18)N(4))(C(6)H(12)NO(2))](ClO(4))(2), crystallizes in the enantiomorphous space group P2(1)2(1)2(1) with Z = 12 (Z' = 3). Each of the three cations in the asymmetric unit represents a different chirality of the isoleucine ligand; two of them are R (or D) and the third is the S (or L) enantiomer. The mixture crystallizes in a so-called unbalanced crystallization, in which the cations adopt a chiral array of composition RRS or SSR, depending on the crystal selected for data collection.
authors: Instrumentation Analysis and Research Centre, Zhongshan University, Guangzhou 510275, People's Republic of China. puscjw@zsu.edu.cn
authors: J
authors: J
authors: Cai
authors: X
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authors: Hu
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authors: Chen
authors: L N
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authors: Ji