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Issue 82, 2005

The importance of π–π, π–CH and N–CH interactions in the crystal packing of Schiff-base derivatives of cis,cis- and cis,trans-1,3,5-triaminocyclohexane

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Abstract

The crystal structures of cis,trans-1,3,5-tris-benzaldimino-cyclohexane (trans-tbc, 1), cis,trans-1,3,5-tris-(pyridine-2-carboxaldimino)-cyclohexane (trans-ttop, 2), cis,cis-1,3,5-tris-(pyridine-3-carboxaldimino)-cyclohexane (cis-mttop, 3) and cis,trans-1,3,5-tris-(pyridine-4-carboxaldimino)-cyclohexane (trans-pttop, 4) are reported. The arrangements of the molecules forming the packed arrays are controlled by the interplay of several different weak intermolecular interactions: π–π stacking, C–H⋯π and C–H⋯N interactions, and these are in turn related to differences in the stereochemistry around the cyclohexane backbone, as well as the positioning of the pyridylnitrogen to determine the overall supramolecular arrangement of these molecules in the solid state.

Graphical abstract: The importance of π–π, π–CH and N–CH interactions in the crystal packing of Schiff-base derivatives of cis,cis- and cis,trans-1,3,5-triaminocyclohexane

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Publication details

The article was received on 12 May 2005, accepted on 15 Jul 2005 and first published on 26 Jul 2005


Article type: Paper
DOI: 10.1039/B506718A
Citation: CrystEngComm, 2005,7, 504-510
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    The importance of π–π, π–CH and N–CH interactions in the crystal packing of Schiff-base derivatives of cis,cis- and cis,trans-1,3,5-triaminocyclohexane

    A. L. Pickering, G. Seeber, D. Long and L. Cronin, CrystEngComm, 2005, 7, 504
    DOI: 10.1039/B506718A

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