Dianiline-diphenol molecular complexes based on supraminol recognition

Vangala, Venu R. ; Mondal, Raju ; Broder, Charlotte K. ; Howard, Judith A. K. ; Desiraju, Gautam Radhakrishna (2005) Dianiline-diphenol molecular complexes based on supraminol recognition Crystal Growth & Design, 5 (1). pp. 99-104. ISSN 1528-7483

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Official URL: http://pubs.acs.org/doi/abs/10.1021/cg049967v

Related URL: http://dx.doi.org/10.1021/cg049967v


Dianilines and diphenols form well-defined crystalline molecular complexes that arise from complementary O-H···N and N-H···O recognition. The crystal structures of four such 1:1 complexes 1, 2, 3 and 4 based on diphenylmethane frameworks are reported and discussed. Three supramolecular synthons are found, the N(H)O based square motif and infinite chain, already reported, and a new cyclohexane chair consisting of N(H)O, O-H···O and N-H···N hydrogen bridges. The replacement of a -CH2- group by an S-atom leads in two cases to little change in the crystal structure and in another to a complete change. It is possible that the dianiline component plays a more important role in molecular recognition in these complexes than does the diphenol component.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:11577
Deposited On:13 Nov 2010 17:01
Last Modified:08 Feb 2011 04:58

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