Received 18 February 2013
The title amidine compound, C14H20N2, prepared by a one-pot reaction, is asymmetric as only one N atom has an alkyl substituent. The terminal cyclohexyl group connected to the amino N atom is located on the other side of the N-C-N skeleton to the 4-methylbenzene ring and has a chair conformation. The dihedral angle between the phenyl ring and the NCN plane is 47.87 (12)°. In the crystal, molecules are linked via N-HN hydrogen bonds, forming chains propagating along the a-axis direction.
For reviews of related metal amidinates and their applications in olefin polymerization, see: Edelmann (1994); Barker & Kilner (1994); Collins (2011); Bai et al. (2010); Yang et al. (2013). For a review of neutral amidines, see: Coles (2006). For a related synthetic method for amidines, see: Wang et al. (2008). For related silyl-linked bis(amidinate) ligands, see: Bai et al. (2006).
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RK2395 ).
This work was supported by grants from the Natural Science Foundation of China (20702029) and the Natural Science Foundation of Shanxi Province (2008011024).
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