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FT-IR Spectra Study of Dicyclopentadienyl (Bissubstituted Cyclopentadienyl) Dithiocyano of Titanium, Zirconium and Hafnium

ZHANG\ Jianbo (Department of Technical Physics, Peking University,Beijing,100871) XU\ Zhenhua (College of Chemistry and Molecular Engineering,Peking University,Beijing,100871) CHEN\ Shoushan (Institute of Elemental Organic Chemistry,Nankai University  
The FT\|IR Spectra of eighteen (R\|Cp)\-2M(NCS)\-2 were measured. The M\|Cp,M\|NCS (M=Ti,Zr,Hf) and other vibration modes were reasonably assigned. All complexes of (R\|Cp)\-2M(NCS)\-2 determined at this paper are bonded by N\|M, and the absorption of ν s M\|Cp (A\-1)(M=Ti,Zr and Hf) vibration all appear in 365 cm -1 or so, while ν as M\|Cp (B) appear successively around 420,350 cm -1 and 320 cm -1 in order of Ti,Zr and Hf. The influence of the center metal atoms and the substituent on cyclopentadienyl upon the spectra was discussed. It is mainly in far IR.region that center metal atoms influence upon the IR. spectra.The influence of the substituent on cyclopentadienyling upon its vibration is not significant. Only between 1500 cm -1 and 1480 cm -1 did a new absorbing peak appear due to the introduction of substituents to activate ν CC vibration.
【CateGory Index】: O627.43
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Chinese Journal Full-text Database 2 Hits
1 Chen Shoushan, Li Jinshan and Wang Jitao (Institute of Elemento Organic Chemistry, Nankai University, Tianjin);The Synthesis of Bis (Alkylcyclopentadienyl)Dithiocyano of Titanium,Zirconium and Hafnium[J];Chemical Research In Chinese Universities;1986-03
2 Zhu Ziying, Mao Chen, Fang Yixing, Qian Yanlong Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai, 200032 Chen Shoushan Institute of Elemental Organic Chemistry, Nankai University, Tianjin, 300071;LOW FREQUENCY VIBRATIONAL SPECTROSCOPIC ANALYSIS OF DICYCLOPENTADIENYL ZIRCONIUM DICHLORIDE AND BIS-SUBSTITUTED CYCLOPENTADIENYL ZIRCONIUM DICHLORIDES[J];Spectroscopy and Spectral Analysis;1991-04
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