Journal of the Chemical Society, Dalton Transactions p. 2713 - 2718 (1990)
Update date:2022-07-29
Topics:
Tsuchida, Eishun
Komatsu, Teruyuki
Hasegawa, Etsuo
Nishide, Hiroyuki
The both-faces-hindered and highly symmetric complexes 5,10,15,20-tetra(2',6'-dipivaloyloxyphenyl)porphyrinato-iron(II) and -cobalt(II), which have no amide residues but ester ones in the fence groups, have been synthesized.The iron(II) complex formed stable and reversible dioxygen adducts in toluene at 25 deg C.The half-life for irreversible oxidation is longer than 1 d.The ligation properties for this complex with imidazole derivatives or dioxygen have been determined and compared to those of one-face-hindered porphyrinatoiron complexes.The bulky groups on both sides of the macrocycle decrease the binding constants for imidazole and for dioxygen.The binding characteristics of an imidazole derivative, which is sterically restrained by the bulky groups, have been clarified by Moessbauer and i.r. spectroscopic measurements.A kinetic study of dioxygen association and dissociation suggests that the low oxygen affinity is brought about primarily by the high rate of ligand dissociation.
View MoreContact:+86-10-62651721
Address:29 Yongxing Road, Daxing District,Beijing China
website:http://www.NEM.COM.CN
Contact:+86-393-4411771
Address:The west section of shengli Road,Puyang,Henan Province,China
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
Contact:0086 533 2282832
Address:Zibo，Shandong
Wuxi Pharma-Trading Import & Export Co.,Ltd.
Contact:+86-510-82304590 82716390
Address:Room 523,Youzu Alliance Building,No.88 Renmin Zhonglu,Wuxi,Jiangsu,China
Doi:10.1002/(SICI)1099-0682(199807)1998:7<921::AID-EJIC921>3.0.CO;2-5
(1998)Doi:10.1016/S0040-4039(01)93859-6
(1989)Doi:10.1080/00397911003707212
(2011)Doi:10.3762/bjoc.7.51
(2011)Doi:10.1021/ac050851v
(2005)Doi:10.1246/bcsj.38.704
(1965)
