摘要:
Interaction of Ni(allyl)(2) and bidentate nitrogen-containing ligands (phenanthroline-1,10; bis(2,6-diisopropylphenyl)diazabutadiene) has been studied. It has been shown that coordination of diimine ligands proceeds with transfer of an allylnickel group to the diimine frame and formation of a covalent Ni-N bond giving rise to imine(amide)Ni(II) complexes. In the case of phenanthroline dearomatization of one heteroaromatic ring takes place. The low-spin imine(amide)allyl complexes(allyl)Ni(C(15)H(15)N(2)) (1) and (allyl)Ni(C(29)H(42)N(2)) (3) have been isolated as crystals and characterized by solution spectroscopy. Combining two molar equivalents of phenanthroline-1,10 with Ni(allyl)(2) results in the transfer of both allyl groups and formation of the high-spin imine(amide)Ni(II) complex Ni(C(15)H(15)N(2))(2) (2). (C) 2009 Elsevier B.V. All rights reserved.