Trends in δ → δ* energies and intensities in bis(arylimino)isoindoline complexes of dimolybdenum
摘要:
It has been found that the delta --> delta* band in the electronic absorption spectra of a series of bis(arylimino)isoindoline dimolybdenum complexes, Mo2(BAII)(OAc)3, follows three trends. First, as the energy of the band decreases across the series its intensity increases. Second, as electron-releasing groups are added to the aryl portion of the ligand the energy of the band increases, while addition of electron-releasing groups decreases its energy. Third, as the parent aryl group becomes a better pi-acceptor the band's energy decreases. These three trends are taken to indicate that the energy of the delta --> delta* band in this series of compounds is determined by mixing of a ligand-to-metal charge-transfer transition with the original delta --> delta* transition.
SIEGL, W. O., J. HETEROCYCL. CHEM., 1981, 18, N 8, 1613-1618
作者:SIEGL, W. O.
DOI:——
日期:——
Siegl, Walter O., Journal of Heterocyclic Chemistry, 1981, vol. 18, p. 1613 - 1618
作者:Siegl, Walter O.
DOI:——
日期:——
Trends in δ → δ* energies and intensities in bis(arylimino)isoindoline complexes of dimolybdenum
作者:D.M. Baird、K.Y. Shih
DOI:10.1016/s0277-5387(00)81593-4
日期:1991.1
It has been found that the delta --> delta* band in the electronic absorption spectra of a series of bis(arylimino)isoindoline dimolybdenum complexes, Mo2(BAII)(OAc)3, follows three trends. First, as the energy of the band decreases across the series its intensity increases. Second, as electron-releasing groups are added to the aryl portion of the ligand the energy of the band increases, while addition of electron-releasing groups decreases its energy. Third, as the parent aryl group becomes a better pi-acceptor the band's energy decreases. These three trends are taken to indicate that the energy of the delta --> delta* band in this series of compounds is determined by mixing of a ligand-to-metal charge-transfer transition with the original delta --> delta* transition.