Journal of the Chemical Society, Dalton Transactions p. 2857 - 2865 (1996)
Update date:2022-08-05
Topics:
Adams, Harry
Bailey, Neil A.
Fenton, David E.
He, Qing-Yu
A group of zinc(II) complexes derived from tri- and tetra-dentate proligands bearing pyridyl and phenolic arms have been prepared and characterised. Potentiometric titrations suggested that a stepwise complexation initially to the pendant OH, and then to pendant O- occurred. The crystal structures of [Zn2L32][ClO4]2 (L3 = 2-{bis[2-(2-pyridyl)ethyl]aminomethyl}phenolate) and [Zn2L62][Zn(NCS)4]·0.5H 2O (L6 = 2-{bis[2-(2-pyridyl)ethyl]aminomethyl}-4-nitrophenolate) reveal that both complexes are dimers in the solid state; the co-ordination geometries around zinc(II) can be best described as distorted square pyramidal with one pyridyl nitrogen atom, one tertiary nitrogen atom and two phenolic oxygen atoms forming the basal plane and a pyridyl nitrogen atom in the axial position. The interzinc separations are 3.284 A and 3.274 A respectively. The crystal structure of [Zn L72] (L7 = 4-nitro-2-{[2-(2-pyridyl)ethyl]aminomethyl}phenolate) reveals an octahedral complex with the zinc atom on a symmetry centre. The complexes [Zn2L32][ClO4]2 and [Zn2L62][BPh4]2, promote the hydrolysis of tris(4-nitrophenyl) phosphate; the former also has a small activity in the hydrolysis of bis(4-nitrophenyl) phosphate.
View MoreShanghai Synmedia Chemical Co., Ltd
Contact:+86-21-38681880
Address:6th Floor, 11A Building, No.528 Ruiqing Road, Heqing town, Pudong new district, Shanghai China
Beijing Mashi Fine Chemical Co.,Ltd.
Contact:+86-10-61271592
Address:Room 506, Section B, Kaichi Mansion, Industrial Development
Shanghai WinTide BioTechnology Co.,Ltd
Contact:86-21-37100630
Address:No. 908 Yunhe Road, Fengxian district, Shanghai
Nanjing Raise Pharmatech Co., Ltd
website:http://www.raisechem.com
Contact:+86-25-58649566
Address:B381,No.606,Ningliu Road,Jiangbei New Area,Nanjing,Jiangsu Province,China
Contact:86-21 60347964
Address:No.1304, West Meilong Road, Minhang District, Shanghai, China
Doi:10.1016/S0040-4020(02)00763-9
(2002)Doi:10.1080/10426509708545516
(1997)Doi:10.1080/15257779508012536
(1995)Doi:10.1055/s-1974-23249
(1974)Doi:10.1021/jo00838a048
(1969)Doi:10.1021/ja963002l
(1996)