1316038-01-3Relevant academic research and scientific papers
Tris(pyrazolyl)borate amidoborane complexes of the group 4 metals
Fuller, Anna-Marie,Hughes, David L.,Lancaster, Simon J.
, p. 7434 - 7441 (2011/08/06)
Treatment of the tris(pyrazolyl)borate metal triamides Tp′M(NMe 2)3, where Tp′ = (C3H3N 2)3BH (Tp) or (3,5-Me2C3HN 2)3BH (Tp*) and M = Ti, Zr and Hf, with the Bronsted acidic Lewis adduct (C6F5) 3B·NH3 in toluene solution leads to the formation of Tp′M(NMe2)2{NH2B(C6F 5)3} complexes. The exception to this was the attempted preparation of Tp*Ti(NMe2)2{NH2B(C 6F5)3} which was unsuccessful. Where Tp′ = Tp and M = Ti and Zr and where Tp′ = Tp* and M = Zr the complexes have been characterized by single crystal X-ray diffraction methods, revealing the first examples of octahedral amidoborane complexes of the group 4 metals. Attempts to drive the reactions to completion resulted in competing preferential hydrolysis of the amidoborane group, regenerating (C6F 5)3B·NH3.
