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Selective gelation of N-(4-pyridyl)nicotinamide by copper(II) salts

Ghosh, Dipankar; Lebedytė, Ieva; Yufit, Dmitry S.; Damodaran, Krishna K.; Steed, Jonathan W.

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Dipankar Ghosh

Ieva Lebedytė

Dmitry S. Yufit

Krishna K. Damodaran


We report the selective gelation properties of the copper(II) complexes of N-(4-pyridyl)nicotinamide (4PNA). The morphology of the xerogels was examined by scanning electron microscopy (SEM). The correlation between the X-ray powder diffraction (XRPD) pattern of the xerogels and the single crystal structure of the copper(II) acetate complex suggests that the single crystal X-ray data represent a good structural model for the gel fibers, and that gelation arises from the presence of a 1D hydrogen-bonded chain between gelator amide groups and coordinated anions, while the presence of strongly bound water in non-gelator systems results in the formation of more extensively hydrogen-bonded crystalline networks. The selective gelation of all the copper(II) salts compared to the other metal salts may be attributed to the Jahn–Teller distorted nature of copper(II), which weakens water binding in all copper(II) salts.


Ghosh, D., Lebedytė, I., Yufit, D. S., Damodaran, K. K., & Steed, J. W. (2015). Selective gelation of N-(4-pyridyl)nicotinamide by copper(II) salts. CrystEngComm, 17(42), 8130-8138.

Journal Article Type Article
Acceptance Date Aug 18, 2015
Publication Date Nov 14, 2015
Deposit Date Oct 2, 2015
Publicly Available Date Aug 18, 2016
Journal CrystEngComm
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 17
Issue 42
Pages 8130-8138


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