Research Article: Bis{2-[(4-chloro­phen­yl)imino­meth­yl]pyrrol-1-ido-κ2N,N′}bis­(dimethyl­amido-κN)titanium(IV) toluene monosolvate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Zhou Chen, Jian Wu, Yahong Li, Bin Hu.


The mononuclear title compound, [Ti(C11H8ClN2)2(C2H6N)2]·C7H8, was synthesized by the reaction of N-(4-chloro­phen­yl)-2-pyrrolylcarbaldimine with Ti(C2H6N)4. The TiIV ion is situated on a twofold rotation axis and displays a distorted octa­hedral geometry defined by four N atoms from two 2-[(4-chloro­phen­yl)imino­meth­yl]pyrrol-1-ide ligands and two N atoms from two dimethyl­amine ligands. The Ti—Npyrrole bond length [2.1041 (19) Å] is longer than the Ti—Ndimethyl­amine bond length [1.9013 (19) Å]; the imine N atom exhibits the longest Ti—N bond [2.3152 (17) Å]. The toluene solvent mol­ecule is located on a twofold rotation axis running through the C atom of the methyl group. Consequently, the H atoms of the latter are rotationally disordered. The compound contains no markable hydrogen-bonding inter­actions.

Partial Text

For the synthesis of N-(4-chloro­phen­yl)-2-pyrrolylcarbald­imine and its oxidovanadium(IV) complexes, see: Mozaffar et al. (2010 ▶). For the synthesis of titanium amido complexes and their applications in hydro­amination reactions, see: Ramanathan et al. (2004 ▶); Cao et al. (2001 ▶); Bexrud et al. (2007 ▶); Tillack et al. (2005 ▶); Braunschweig & Breitling (2006 ▶); Zhao et al. (2012 ▶).