327085-47-2Relevant academic research and scientific papers
Stepwise substitution of yV,/V-di-isopropylcarbamato groups of Ti(O2CN'Pr2)4 by triphenylsilanol leading from eight- To six- and four-co-ordinated titanium(iv)
Dell'aniico, Daniela Belli,Calderazzo, Fausto,Lanelli, Sandra,Labella, Luca,Marchetti, Fabio,Pelizzi, Giancarlo
, p. 4339 - 4342 (2007/10/03)
Carbamato displacement from the hydrocarbon soluble A-4W-diisopropylcarbamato derivative Ti(O2CN'Prj)4,1, by triphenylsilanol led to the bis(silanolato)bis(carbamato) complex TKOjCNTrJ-4OSiPhj)-4 2. X-Ray diffraction showed the mononuclear compound 1 to contain eight-co-ordinated titanium with slightly asymmetric bidentate carbamato groups in a distorted dodecahedral geometry. Titanium is six-co-ordinated in 2 to six oxygen atoms belonging to two bidentate carbamato groups and to two ay-arranged silanolato ligands in a distorted octahedral geometry. Exhaustive carbamato displacement from titanium, carried out with a silanol: titanium molar ratio > 4:1, afforded the mononuclear tetrasilanolato complex Ti(OSiPh3)4) 3, containing a tetrahedral titanium centre. The Royal Society of Chemistry 2000.
