Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1007, Issue -, Pages 214-219Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molstruc.2011.10.050
Keywords
o-Carborane; Synthesis; Structure; Polymorphism; Photoluminescence
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Funding
- NSFC [20702020]
- SRF for ROCS, SEM [SQT0804]
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The reaction of o-carboranyllithium with two equiv. of 2-pyridinecarboxaldehyde affords 1-[(hydroxy)(pyridyl)methyl]-o-carborane (1) and 1,2-bis[(hydroxy)(pyridyl)methyl]-o-carborane (2), which have been characterized by IR and NMR spectroscopy, mass spectrometry and single-crystal Xray diffraction. Compound 2 exhibits interesting polymorphism (monoclinic 2a and triclinic 2b). The solid state structures of the new carboranes feature intermolecular and intramolecular hydrogen bonding interactions involving all the N and O atoms, leading to one dimensional (1, 2b) or two-dimensional (2a) supramolecular structures. The photoluminescence of 1 and 2b was investigated in the solid and solution states at room temperature, respectively. (C) 2011 Elsevier B.V. All rights reserved.
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