Structural and photophysical characterisation of coordination and optical isomers of mononuclear ruthenium(ii) polypyridyl 1,2,4-triazole complexesElectronic supplementary information (ESI) available: analytical and semipreparative HPLC chromatograms, CD and UV/vis spectra. See http://www.rsc.org/suppdata/dt/b3/b301961f/
作者:Wesley R. Browne、Dusan Hesek、John F. Gallagher、Christine M. O'Connor、J. Scott Killeen、Fumiko Aoki、Hitoshi Ishida、Yoshihisa Inoue、Claudio Villani、Johannes G. Vos
DOI:10.1039/b301961f
日期:——
The X-ray crystal structure of the N2 isomers of the Ru(bipy)2 complexes of Hphpztr (1) and Hpztr (2), (bipy = 2,2′-bipyridine, Hphpztr = 2-(5′-phenyl-4′H-[1,2,4]triazol-3′-yl)pyrazine and Hpztr = 2-(4′H-[1,2,4]triazol-3′-yl)pyrazine) are reported. The molecular structure obtained for 2 demonstrates an interesting structural aspect in the sharing of a single proton between two molecular units. The isolation of the Δ and Λ stereoisomers of 1 and [Ru(phen)2(pztr)]+
(phen = 1,10-phenanthroline)
(3) by semipreparative HPLC is also reported. The compounds obtained are characterised by electronic spectroscopy and particular attention is paid to the photophysical properties of Δ and Λ isomers of 1 and 3, in chiral enantiopure and racemic solvents.
报告了Hphpztr(1)和Hpztr(2)的Ru(bipy)2复合物N2异构体的X射线晶体结构(bipy = 2,2′-联吡啶,Hphpztr = 2-(5′-苯基-4′H-[1,2,4]三唑-3′-基)吡嗪,Hpztr = 2-(4′H-[1,2,4]三唑-3′-基)吡嗪)。2的分子结构表明,两个分子单元之间共享一个质子,这是一个有趣的结构方面。还报告了通过半制备HPLC分离1和[Ru(phen)2(pztr)]+的Δ和Λ立体异构体(phen = 1,10-菲咯啉)的分离(3)。所获得的化合物的特征在于电子光谱,并特别关注1和3的Δ和Λ异构体在手性对映纯溶剂和消旋溶剂中的光物理性质。