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A new salen ligand: 2,2′-[(spiro[4.4]nonane-1,6-diyl)dinitrilomethylidyne]bis(4,6-dichlorophenol)

✍ Scribed by Jiang, Man ;Yu, Lin-Tao ;Ye, Hui ;Zhou, Xiang-Ge

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
578 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 23 H 22 C l4 N 2 O 2 , was synthesized by the reaction of 1,1 0 -spiro [4,4]nonane-1,6-diamine and 3,5dichlorosalicylaldehyde. It is a new Schiff base containing a spirocyclic backbone and an approximate non-crystallographic C 2 axis. Two intramolecular O-HÁ Á ÁN hydrogen bonds determine the relative orientation of the two benzene rings. Intermolecularstacking interactions between the phenyl rings and weak intermolecular C-HÁ Á ÁCl hydrogen bonds stabilize the structure. Cp1 and Cp2 are the centroids of the planes defined by atoms C11-C16 and C18-C23. The angle between the planes is only 0.8 and interplanar distances are Cp1Á Á ÁCp2(x, y, z + 1) = 4.023 A ˚and Cp1Á Á ÁCp2(x + 1, y, z + 1) = 4.032 A ˚.

Related literature

For information on the application of salen complexes to asymmetric catalysis, see

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