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
取代戊二烯Ti, V羰基化合物的谱学研究
English
Spectra Studies of Titanium and Vanadium-Pentadienyl-Carbonyl Compounds
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.
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Key words:
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Open metallocene
- / Pentadienyl
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