Received 2 May 2013
The title complex, [Hf(C29H41N2)Cl3], was synthesized from HfCl4 and HC[C(Me)N(iPr2C6H3)]2Li(Et2O) in toluene. The structure is isotypic with those of TiIV and ZrIV complexes reported previously [Nikiforov et al. (2007). Dalton Trans. pp. 4149-4159; Kakaliou et al. (1999). Inorg. Chem. 38, 5964-5977]. There is a crystallographic mirror plane containing the Hf atom, one chloride ligand and the central diketiminate C atom. The HfIV ion has slightly distorted square-pyramidal geometry surrounded by two N atoms from the -diketiminate ligand and by three Cl- anions. Coordination bond lengths are Hf-N = 2.181 (3) Å, and Hf-Cl = 2.3148 (15) and 2.3727 (12) Å.
For complexes bearing -diketiminate ligands, see: Bourget-Merle et al. (2002); Hamaki et al. (2006). For the synthesis of the precursor of the -diketiminate in the title compound, see: Stender et al. (2001). For isotypic TiIV and ZrIV complexes, see: Nikiforov et al. (2007) and Kakaliou et al. (1999), respectively.
Data collection: CrystalClear (Rigaku/MSC, 2006); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku/MSC, 2006); software used to prepare material for publication: CrystalStructure.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BH2479 ).
We gratefully acknowledge support of this work by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture, and in part by a grant from the Knowledge Cluster Program.
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Hamaki, H., Takeda, N. & Tokitoh, N. (2006). Organometallics, 25, 2457-2464.
Kakaliou, L., Scanlon, W. J., Qian, B. S., Baek, S. W., Smith, M. R. & Motry, D. H. (1999). Inorg. Chem. 38, 5964-5977.
Nikiforov, G. B., Roesky, H. W., Jones, P. G., Oswald, R. B. & Noltemeyer, M. (2007). Dalton Trans. pp. 4149-4159.
Rigaku/MSC (2006). CrystalClear and CrystalStructure. Rigaku Corporation, Tokyo, Japan.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Stender, M., Wright, R. J., Eichler, B. E., Prust, J., Olmstead, M. M., Roesky, H. W. & Power, P. P. (2001). J. Chem. Soc. Dalton Trans. pp. 3465-3469.