103016-83-7Relevant articles and documents
Reactions of Tetra(isopropoxy)hafnium Isopropanol with Semicarbazones
Tyagi, S. B.,Singh, B.,Kapoor, R. N.
, p. 965 - 967 (2007/10/02)
The reactions of tetra(isopropoxy)hafnium isopropanol, Hf(OPri)4PriOH, with monobasic bidentate (LH, L'H and L''H) and dibasic tridentate (L'''H2 and L''''H2) semicarbazones in different molar ratios have been carried out in refluxing benzene.Products of the types Hf(OPri)4-nLn where n = 1 to 4, Hf(OPri)4-2n(L)n where n = 1 to 2, have been obtained.These have been characterised on the basis of elemental analyses, UV and IR spectral studies.The present hafnium complexes show coordination numbers varying from five to eight.