Guang pu xue yu guang pu fen xi = Guang pu 2000-10-01

[Infrared and Raman spectra studies on isomultinuclear organometallic carbyne compounds].

Z Xu, A Mayr

Index: Guang Pu Xue Yu Guang Pu Fen Xi 20(5) , 702-3, (2000)

Full Text: HTML

Abstract

The infrared and Raman spectra of five isomultinuclear organometallic carbyne compounds were studied. The results show that the introduction of N atom from TMEDA or P atom from DPPE to W atom (both N and P are strong sigma-donor and weak pi-acceptor) will decrease the bonding intensity of W identical to C. The pressure tunning IR and Raman spectra of compound III indicate the presence of pressure-induced phase-transition near 20 kbar in it. There are two effects on the nu (W identical to C) of this compound with increasing pressure: the normal increasing the nu (W identical to C) wavenumber due to the shorting W identical to C bond and increasing the W-CO pi backbonding to decrease the nu (W identical to C) wavenumber.