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	金属钨三键多核金属有机配合物高压拉曼及红外光谱研究; Raman and infrared spectral studies of tungsten organometallic carbyne complex at high external pressure
	许振华
	2001
关键词	拉曼光谱 红外光谱 高压 金属三键有机配合物 相变 Raman infrared high pressure carbyne phase transition
英文摘要	研究了金属钨三键多核金属有机配合物 [Cl(CO) 2 (DPPE)WCC6 H4CCC6 H4NC]2 ReCl(CO) 3(DPPE =bis(diphenylphosphino)ethane,(Ph) 2 PCH2 CH2 P(Ph) 2 )不同压力下的拉曼和红外光谱 (最高压力约 5 0kbar)。配合物在 3 0kbar存在一压力诱导二级相变。金属钨三键伸缩振动ν(WC)压力相关 (dν/dp)在低压相区 ( 0 5 9cm-1·(kbar) -1)与高压相区 ( 0 0 4cm-1·(kbar) -1)差别很大 (约 15倍 )。在高压下 ,从基团Cl(CO) 2 (DPPE)...; The Raman and infrared spectra of complex: [Cl(CO)(2), (DPPE)W equivalent to CC6H4C equivalent to CC6H4NC](2)Re Cl(CO)(3), (DPPE = bis(di-phenylphosphino) ethane, (Ph)(2)PCH2CH2P(Ph)(2)) were measured at high extemal pressure (up to about 50 kbar). The pressure induced phase transition was observed near 30 kbar. The pressure dependence dv/dp of v (W equivalent to C) at the low-pressure phase is a little high (0.59 cm(-1 .)(kbar)(-1)) and is very low (0.04 cm(-1.)(kbar)(-1)) at the high-pressure phase. It shows that the pi -backbonding from W to pi* -orbital of CO is strengthened at the high external pressure in fragment Cl(CO)(2) (DPPE) W equivalent to C; The bond intensity and the force constant of W equivalent to C and v(W equivalent to C) are decreasing;This effect compete with the normal increasing v(W equivalent to C) on compression.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000171963200006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); EI; PubMed; 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 2; 05; 596-598; 21
语种	中文
出处	万方 ; 知网 ; SCI ; PubMed
出版者	光谱学与光谱分析
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/77953]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	许振华. 金属钨三键多核金属有机配合物高压拉曼及红外光谱研究, Raman and infrared spectral studies of tungsten organometallic carbyne complex at high external pressure. 2001-01-01.

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