Organotitanium Chemistry (). The Molecular and Electronic Structure of TiCl(OC6H5)3C6H5OH and Ti(OC6H5)4C6H5OH

[摘要] The molecular and electronic structures of TiCl(OC6H5)3¡¤C6H5OH and Ti(OC6H5)4¡¤C6H5OH have been studied by employing cryoscopic and electronic spectroscopic methods. The cryoscopic data have shown that the dimeric tetraphenoxytitanium(¥³) phenolate in solid undergoes complete dissociation into monomer in solution and also the chlorocomplex starts dissociation around the concentration of 8 m mole/l. Therefore, these two Ti-complexes are pentacoordinated in dilute solution and the local symmetry of the titanium ion in these complexes seems to be trigonalbipyramid. The electronic spectra of TiCl(OC6H5)3¡¤C6H5OH and Ti(OC6H5)4¡¤C6H5OH each show two band, systems, one vibration-structural band characteristic of the aromatic ring in the near UV and another visible band at 26.8 kK, 29.6 kK, respectively, which are assigned as a ligand to metal charge transfer band corresponding to 1A1¡È¡æ 1E¡Ç or 1E¡È transition.

[学科分类] 化学（综合）