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摘要
Spontaneous resolution occurred during the reactions of racemic macrocyclic compound [Ni(rac-L)](ClO4)(2) with Na-2[Fe(CN)(5)NO] in DMF (acetone diffusion), and a pair of novel homochiral coordination complexes {Ni(SS-L)[Fe(CN)(5)NO]DMF} (SS-1) and {Ni(RR-L)[Fe(CN)(5)NO]DMF} (RR-1, L = 5,5,7,12,12,-14-hexamethyl-1,4,8,11-tetraaza-cyclotetradecane, DMF = N,N-Dimethylformamide) as racemic conglomerate were immediately obtained. While the same reaction solution ([Ni(rac-L)](ClO4)(2) with Na-2[Fe(CN)(5)NO] in DMF) produced the racemic compound of {[Ni(rac-L)][cis-Fe(CN)(5)NO]}(2) (meso-1) (Zheng et al., 2011) when volatilized naturally in the air for about 4 days. The phase purity of the compounds has been confirmed by X-ray powder diffraction patterns. Meanwhile, the solvent effect of the reactions, as well as the thermal stability, CD spectra, and dielectric property of the compounds were investigated.
