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 MoreVanderArk International Limited
Contact:86-10-82437576
Address:Qing He
Shanghai Balmxy Pharmaceutical Co., Ltd
Contact:0086-21-24206007
Address:Room 402, 15#, No. 909 wangyue Road, shanghai, P. R. China
ZHUHAI HAIRUIDE BIOSCIENCE AND TECHNOLOGY CO.,LTD
website:http://www.zhhairuide.com
Contact:+8613326687259/+86-756-7789199
Address:No.10 Yonghui Road
HANGZHOU FOREWIN PHARMA CO., LTD
Contact:+86-571-89053961
Address:hangzhou
Xinjiang Fufeng Biotechnologies Co., Ltd.
Contact:+86-539-7287111
Address:GANQUANPU INDUSTRIAL PARK, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT AREA (TOUTUNHE DISTRICT) OF URUMQI
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)
