Journal of the American Chemical Society p. 2141 - 2152 (1980)
Update date:2022-08-17
Topics:
Fukuzumi, S.
Kochi, J. K.
The absorption spectra of transient charge transfer (CT) complexes are observed immideately upon mixing iodine and various organometals RM, where M = tin, lead, and mercury.The formation constants KCT and transition energies hνCT of these CT complexes vary with the ionization potentials and the steric properties of the alkylmetals.The subsequent disappearance of the CT absorption band is accompanied by the cleavage of the alkylmetal by iodine (iodinolysis).The kinetics of the iodine disappearance are consistent with a preequilibrium formation of the CT complex followed by the rate-limiting iodinolysis of the alkylmetal.The selectivity in the iodinolysis of unsymmetrical tetraalkyltin compounds is determined by product analysis and shown to be strongly dependent on the solvent polarity.The solvent effect is also shown to affect the formation constant of the CT complex and the rate constant for iodinolysis in a parallel manner.A charge-transfer mechanism is proposed for iodinolysis in which the rate-limiting step involves the unimolecular decomposition of the CT complex by electron transfer from the alkylmetal donor to the iodine moiety to form the ion pair
Suzhou Chiral Pharmaceuticals Co., Ltd.
Contact:86-0512-63197058
Address:Building A, No. 2358, Chang'an Road, Wujiang Science Park
Hebei Fulong Import & Export Co., Ltd.
Contact:86-311-87795661
Address:15A19 Zhongyuan Building,368 Youyi North Street,Shijiazhuang 050070,China
Hangzhou Hysen Pharma co.,Ltd.
website:http://www.hysenpharma.cn/
Contact:0086-571-88298791
Address:#701,Gudun Road Hangzhou
WUHU HUAHAI BIOLOGY ENGINEERING CO LTD
Contact:+86-553-3836920
Address:7/F NO.82 LAODONG ROAD WUHU CHINA
website:http://www.cartoonchem.com/
Contact:+86-25-58074918
Address:Room 2109, RuiHua Business Center,315 South ZhongShan Road, Nanjing 210001, China
Doi:10.1021/ja993446s
(2000)Doi:10.1016/S0957-4166(02)00642-0
(2002)Doi:10.1021/jo00283a024
(1989)Doi:10.1021/acs.jnatprod.0c00966
(2021)Doi:10.1080/00397910701316136
(2007)Doi:10.1080/00397910902792648
(2009)