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Issue 12, 2010
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Co-crystallization of oxadiazole-bridged pyridyl-N-oxide building modules with R-aromatics (R = –OH, –NH2 and –COOH)

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Abstract

The reaction of oxadiazole bridging pyridyl-N-oxides (2,5-bis(4-pyridyl-N-oxide)-1,3,4-oxadiazole (A1) and 2-(4-pyridyl)-5-(4-pyridyl-N-oxide)-1,3,4-oxadiazole (A2)) with different substituted aromatics (R-aromatics, R = –OH, –NH2, –COOH) have been investigated. Eight new organic co-crystals of 1–8 were synthesized and characterized by elemental analysis, FTIR spectroscopy, 1H NMR and single-crystal X-ray diffraction. The results display the distinct substituent effect on the hydrogen-bonded self-assembly systems. In addition, the luminescent properties of A1–A2 and 1–8 were investigated in the solid state.

Graphical abstract: Co-crystallization of oxadiazole-bridged pyridyl-N-oxide building modules with R-aromatics (R = –OH, –NH2 and –COOH)

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Supplementary files

Article information


Submitted
16 Nov 2009
Accepted
09 Jun 2010
First published
09 Aug 2010

CrystEngComm, 2010,12, 4287-4303
Article type
Paper

Co-crystallization of oxadiazole-bridged pyridyl-N-oxide building modules with R-aromatics (R = –OH, –NH2 and –COOH)

G. Hou, J. Ma, L. Wang, P. Wang, Y. Dong and R. Huang, CrystEngComm, 2010, 12, 4287
DOI: 10.1039/B923810G

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