Zirconium alkyl and borohydride complexes stabilized by a sterically demanding anionic organic amide. The crystal structures of ZrMeL3 (2) and Zr(BH4)L3 (3) (L = (3,5-Me2Ph)N(Ad); Ad = adamantyl)

Article abstract of DOI:10.1139/v97-179

The lithium amide [3,5-Me₂PhN(Ad)]Li·Et₂O (L) reacts with ZrCl₄(THF)₂ to give ZrClL₃. Reactions of ZrClL₃ with MeLi and NaBH₄ produce the corresponding ZrMeL₃ (2) and Zr(BH₄)L₃ (3), respectively. The molecular structures of 2 and 3 were determined by X-ray crystallography. Crystal data are as follows. 2: C₅₅H₇₅N₃Zr, FW 869.45, orthorhombic, Pcab; a = 19.2436(3) angstrom, b = 45.9342(4) angstrom, c = 21.2935(3) angstrom, V = 18822.2(4) angstrom³, Z = 8; 3: C₅₄H₇₆BN₃Zr, FW 869.25, orthorhombic; Pbc21, a = 11.5399(3) angstrom, b = 19.4091(4) angstrom, c = 20.4471(5) angstrom, V = 4579.72(19) angstrom³, Z = 4.