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Citation: Wang Yue, Liu Ju-Zheng, Jiang Shi-Mei, Liang Ying-Qiu. Spectra Studies of Titanium and Vanadium-Pentadienyl-Carbonyl Compounds[J]. Acta Physico-Chimica Sinica, ;1994, 10(04): 319-323. doi: 10.3866/PKU.WHXB19940407 shu

Spectra Studies of Titanium and Vanadium-Pentadienyl-Carbonyl Compounds

1.
Institute of Theoretical Chemistry, Jilin Univeristy, Changchun 130023

Received Date: 4 October 1992
Available Online: 15 April 1994

The characterization of a series of carbonyl adducts of open titanocenes, open vanadocenes and half-open vanadocene was studied with IR, EPR and UV-VIS methods. The electronic structures of [2,4-(CH_3)_2C_5H_5]_2VCO, [2,4-(CH_3)_2C_5H_5]_2TiCO and [2,4-(CH_3)_2C_5H_5](C_5H_5)VCO have been calculated by EHMO mehtod. The compar ison between carbonyl adducts of open vanadocene, half-open vanadoce and vanadocene has been carried out and the results show that the properties of half-open vanadoce lie between open vanadoce and vanadocene, and tend to open vanadocene. The bond of vanaium-pentadienyl is stronger than that of vanadium-cyclopentadienyl. The properties of half-open vanadocene are more affected by the pentadienyl ligand than by the cyclopentadienyl ligand.
- Open metallocene,
- Pentadienyl
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