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Tetra-kis(quinolin-8-olato-?N,O)hafnium(IV) toluene disolvate.

ABSTRACT: In the title compound, [Hf(C(9)H(6)NO)(4)]·2C(7)H(8), the hafnium metal centre is coordinated by four N,O-donating bidentate quinolin-8-olate ligands arranged to give a square-anti-prismatic coordination polyhedron with a slightly distorted dodeca-hedral geometry. The average Hf-O and Hf-N distances are 2.096?(3) and 2.398?(3)?Å, respectively, and the average O-Hf-N bite angle is 70.99?(11)°. The crystal packing is controlled by ?-? inter-actions between quinoline ligands of neighbouring mol-ecules and hydrogen-bonding inter-actions. The inter-planar distances vary between 3.138?(1) and 3.208?(2)?Å, while the centroid-centroid distances range from 3.576?(1) to 4.074?(1)?Å.

SUBMITTER: Viljoen JA

PROVIDER: S-EPMC2972127 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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Tetra-kis(quinolin-8-olato-κN,O)hafnium(IV) toluene disolvate.

Viljoen J Augustinus JA Visser Hendrik G HG Roodt Andreas A Steyn Maryke M

Acta crystallographica. Section E, Structure reports online 20091104 Pt 12

In the title compound, [Hf(C(9)H(6)NO)(4)]·2C(7)H(8), the hafnium metal centre is coordinated by four N,O-donating bidentate quinolin-8-olate ligands arranged to give a square-anti-prismatic coordination polyhedron with a slightly distorted dodeca-hedral geometry. The average Hf-O and Hf-N distances are 2.096 (3) and 2.398 (3) Å, respectively, and the average O-Hf-N bite angle is 70.99 (11)°. The crystal packing is controlled by π-π inter-actions between quinoline ligands of neighbouring mol-ecu ...[more]

PMID: 21578562

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