Yoshinari Nobuto, Li Chan, Lee Raeeun, Kuwamura Naoto, Igashira-Kamiyama Asako, Konno Takumi
Department of Chrmistry, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan.
CREST, Japan Science and Technology Agency , Toyonaka, Osaka 560-0043, Japan.
Inorg Chem. 2015 Sep 21;54(18):8881-3. doi: 10.1021/acs.inorgchem.5b01549. Epub 2015 Aug 31.
The 1:1 mixing of a pair of enantiomers of a cyclic Au(I)4Co(III)2 hexanuclear complex having penicillaminate (pen) and 1,2-bis(diphenylphosphino)ethane (dppe), Au4Co2(dppe)2(d-pen)4 (d4-1) and Au4Co2(dppe)2(l-pen)4 (l4-1), in solution produced an additional stereoisomer, Au4Co2(dppe)2(d-pen)2(l-pen)2 (d2l2-1), because of the scrambling of Co(d-pen)2 and Co(l-pen)2 units between d4-1 and l4-1. Upon crystallization with NO3(-), the three stereoisomers were independently crystallized to form three different kinds of crystals, homochiral crystals of d4-12, homochiral crystals of l4-12, and heterochiral crystals of d2l2-12, showing a unique example of the self-recognition and organization of three stereoisomers upon crystallization.
具有青霉胺（pen）和1,2-双（二苯基膦基）乙烷（dppe）的环状Au(I)4Co(III)2六核配合物的一对对映体Au4Co2(dppe)2(d - pen)4（d4-1）和Au4Co2(dppe)2(l - pen)4（l4-1）在溶液中1:1混合时，由于Co(d - pen)2和Co(l - pen)2单元在d4-1和l4-1之间的交换，产生了一种额外的立体异构体Au4Co2(dppe)2(d - pen)2(l - pen)2（d2l2-1）。在用NO3(-)结晶时，这三种立体异构体分别结晶形成三种不同类型的晶体，即d4-12的纯手性晶体、l4-12的纯手性晶体和d2l2-12的杂手性晶体，展示了结晶时三种立体异构体自我识别和组装的独特例子。
