Supramolecular isomerism of self-complementary zinc-5,10,15,20-tetra(4-pyridyl)porphyrin in the presence of dimethylformamide
Supramolecular isomerism of self-complementary zinc-5,10,15,20-tetra(4-pyridyl)porphyrin in the presence of dimethylformamide
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DOI：
10.1039/b913791b
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发表时间：
2010-01-01
期刊：
影响因子：
3.1
通讯作者：
Oppel, Iris M.
中科院分区：
文献类型：
--
作者：
Seidel, Ruediger W.;Goddard, Richard;Oppel, Iris M.
报道了锌-5，10，15，20-四（4-吡啶基）卟啉（ZnTPyP）-二甲基甲酰胺（DMF）体系中的自互补配位超分子异构现象。ZnTPyP在DMF中的重结晶得到一种新的四聚体超分子异构体[ZnTPyP]（4），中心点7.33DMF，具有分子和晶体学S（4）对称性。晶体伴随有具有聚合物一维梯形结构的[ZnTPyP中心点2DMF]（n）的三斜晶体。在二甲基甲酰胺中，Zn（2+）与5，10，15，20-四（4-吡啶基）卟啉（TPyP）原位金属化，得到了具有一维双锯齿链结构的单斜晶体[ZnTPyP center dot 2.33DMF]（n）。ZnTPyP-DMF体系是金属超分子化学中一个不寻常的超分子异构现象。
Supramolecular isomerism by self-complementary coordination in the system zinc-5,10,15,20-tetra(4-pyridyl)porphyrin (ZnTPyP)-dimethylformamide (DMF) is reported. Recrystallization of ZnTPyP from DMF afforded crystals of a new tetrameric supramolecular isomer, [ZnTPyP](4)center dot 7.33DMF, with molecular and crystallographic S(4) symmetry. The crystals were accompanied by triclinic crystals of [ZnTPyP center dot 2DMF](n) with a polymeric 1D ladder structure. In situ metalation of the parent free-base 5,10,15,20-tetra(4-pyridyl) porphyrin (TPyP) with Zn(2+) in dimethylformamide afforded monoclinic crystals of [ZnTPyP center dot 2.33DMF](n) with a 1D double zig-zag chain structure. The ZnTPyP-DMF system is an example of unusual supramolecular isomerism in metallosupramolecular chemistry.