- 作者: 沈文水、郭峻男、謝聖祥、高漢謀
- 作者服務機構: Department of Chemistry, National Chung-Hsing University, Taichung, Taiwan 402, R.O.C.
- 中文摘要: A series of titanium(IV) complexes Ti(O-i-Pr)Cl3(THF)(PhCOR) (R = H (1), CH3 (2), or Ph (3)) is prepared quantitatively from reactions of [Ti(O-i-Pr)Cl2(THF)(m-Cl)]2 with 2 molar equiv. PhCOR. Treatment of Ti(O-i-Pr)Cl3 with 2 molar equiv. of PhCOR affords the disubstituted complexes Ti(O-i-Pr)Cl3(PhCOR)2 (R = CH3 (4) or Ph (5)). The 13C NMR study of these complexes shows that the relative bonding abilities are in the order of PhCOCH3 > PhCHO > PhCOPh. The molecular structure of 5 reveals that one of the benzophenone ligands is trans to the strongest 2-propoxide ligand with a long Ti-O(carbonyl) distance of 2.193(5) A which is much longer than the other Ti-O(carbonyl) distance of 2.097(4) A by ~0.1 A. All ligands cis to the alkoxide ligand are bending away from the alkoxide ligand with the RO-Ti-L angles ranging from 93.6(2) to 99.0(2)°.
- 英文摘要: --
- 中文關鍵字: Titanium complex; Alkoxide; Chloride; Tetrahydrofuran; Benzaldehyde; Acetophenone; Benzophenone.
- 英文關鍵字: --