Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy p. 41 - 46 (1981)
Update date:2022-08-25
Topics:
Roberts, G. A.
The u.v./visible spectra of arylosazones have been examined.These show that in nonchelated arylosazones the ?-electrons in both arylhydrazone groups are highly delocalised, compared to those of simple arylhydrazones, but that there is very little, if any, electronic interaction between the two 10?-electron systems.Both chromophores contribute separately to the absorption spectrum.In chelated arylosazones only one of the arylhydrazone groups has this enhanced electron delocalisation, and an explanation for this is proposed.The delocalisation causes an increase in the N-N bond order and a reduction in the C-N bond order.The delocalised structures proposed for both chelated and non-chelated arylosazones enable a number of the known properties of sugar phenylosazones to be now statisfactorily explained.
View More
Contact:86-511-85210668 0511-85210668, 85210818, 85210898
Address:Yihai Garden E-902,NO.99 Daxi RD., Zhenjiang Jiiangsu ,China
Contact:86-15588110016
Address:LINYI CITY,SHANDONG PROVINCE,CHINA
Jiangsu Zenji Pharmaceuticals LTD
Contact:+86-025-83172562; +1-224-888-1133(USA)
Address:No.5 Xinmofan Road
Contact:+86-571-87859231, 87859237, 87859239
Address:1606,Huarong Times Mansion, No.3880 Jiangnan Avenue, Binjiang District, Hangzhou, China, 310053
website:http://www.sagechem.com
Contact:+86-571-86818502
Address:Room C1301, New Youth Plaza, 8 Jia Shan Road, Hangzhou, China
Doi:10.1016/S0040-4039(02)01182-6
(2002)Doi:10.1007/BF00563334
()Doi:10.1002/jhet.2612
(2017)Doi:10.1016/j.bmcl.2016.08.023
(2016)Doi:10.1021/ja01269a055
(1938)Doi:10.1039/c5ra01618e
(2015)
