0000000001314282
AUTHOR
Monika Pyrkosz-bulska
A Bis(mu-phenoxo)-Bridged Dizinc Complex with Hydrolytic Activity
The dinuclear complex [Zn2(papy)2]·2CH3OH [H2papy = N- (2-hydroxybenzyl)-N-(2-picolyl)glycine] was synthesized and characterized. The crystal structure of the complex reveals that both ZnII ions are pentacoordinate with distorted pentagonal bipyramidal coordination arrangements. The phenoxyl groups of each ligand bridge the two metal atoms, whereas each carboxylate of the ligand is terminally bound to one ZnII ion. Potentiometric studies of the ZnII:H2papy system in a methanol/water mixture show the existence of a mononuclear species at lower pH; but at a pH above 5, a dimeric species starts to dominate and transforms further into a bis(μ-phenoxo) bridged dizinc complex by deprotonation of …
CCDC 927054: Experimental Crystal Structure Determination
Related Article: Mainak Mitra, Reena Singh, Monika Pyrkosz-Bulska, Matti Haukka, Elzbieta Gumienna-Kontecka, Ebbe Nordlander|2013|Z.Anorg.Allg.Chem.|639|1534|doi:10.1002/zaac.201300160