Abstract
The monomeric title zirconium(IV) compound, [Zr(C12H21N2Si)2Cl2], was prepared by the metathetical reaction of [LiN(SiMe2NMe2)(2,6-Me2C6H3)]2 with zirconium tetrachloride. The ZrIV atom is N,N′-chelated by the N-silylated anilido ligand. Along with two Cl atoms, the six-coordinated ZrIV atom demonstrates a highly distorted octahedral geometry. The two ligands around the ZrIV atom are arranged cis to each other and obey the C 2 symmetry operation. That means the asymmetric unit consists of only half of the molecular compound and the complete molecule is generated by a twofold axis. The two ends of the N—Si—N chelating unit exhibit different affinities for the metal center. The Zr—Namino bond is longer than the Zr—Nanilido bond.
Highlights
Republic of ChinaR factor = 0.048; wR factor = 0.120; data-to-parameter ratio = 16.9
The monomeric title zirconium(IV) compound, [Zr(C12H21N2Si)2Cl2], was prepared by the metathetical reaction of [LiN(SiMe2NMe2)(2,6-Me2C6H3)]2 with zirconium tetrachloride
The ZrIV atom is N,N0 -chelated by the N-silylated anilido ligand
Summary
R factor = 0.048; wR factor = 0.120; data-to-parameter ratio = 16.9. The monomeric title zirconium(IV) compound, [Zr(C12H21N2Si)2Cl2], was prepared by the metathetical reaction of [LiN(SiMe2NMe2)(2,6-Me2C6H3)]2 with zirconium tetrachloride. The ZrIV atom is N,N0 -chelated by the N-silylated anilido ligand. Along with two Cl atoms, the six-coordinated. ZrIV atom demonstrates a highly distorted octahedral geometry. The two ligands around the ZrIV atom are arranged cis to each other and obey the C2 symmetry operation. That means the asymmetric unit consists of only half of the molecular compound and the complete molecule is generated by a twofold axis. The two ends of the N—Si—N chelating unit exhibit different affinities for the metal center. The Zr—Namino bond is longer than the Zr—Nanilido bond
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