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  • Title: [The UV-Vis spectra and substituent effect of organoimido derivatives of polyoxometalates].
    Author: Li Q, Wei YG, Wang Y, Guo HY.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2005 Jun; 25(6):923-6. PubMed ID: 16201373.
    Abstract:
    In the presence of a carbodiimine, i.e. DCC, a series of organoimido derivatives of polyoxometalates have been synthesized via the reaction of [alpha-Mo8O26]4- with aromatic amines and its hydrochloride salt. Elemental analysis, IR, 1H-NMR and UV-Vis spectra were used to characterize those hybrids, in particular their UV-Vis spectra have been studied. The results show that typical metal-ligand charge transfer (MLCT) transitions occur in the organic-inorganic hybrid molecules. There is a good linear relationship between the shift of UV-Vis absorptions (delta lamda max) and conjugation effect of the p-substituted group (sigmaR).
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