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Three metal–organic coordination compounds based on 4,6-dipyridyl-2-aminopyrimidine: Important role of hydrogen bonding in supramolecular assemblies
- Source :
-
Journal of Molecular Structure . Mar2008, Vol. 875 Issue 1-3, p42-49. 8p. - Publication Year :
- 2008
-
Abstract
- Abstract: The reactions of divalent metal salts and 4,6-dipyridyl-2-aminopyrimidine ligands gave rise to three metal–organic coordination compounds: [ZnL1(OOCCH3)2] (1), [Co(L2)2(OH)2]·3H2O (2), and [Cu2(L2)2(OH)2(H2O)2](NO3)2·0.5H2O (3) [L1=4,6-bis(2-pyridyl)-2-aminopyrimidine; L2=4-(2-pyridyl)-6-(4-pyridyl)-2-aminopyrimidine] and their crystal structures were determined via single-crystal X-ray diffraction. In the three structures, L1 and L2 both exhibit terminal coordination mode. As the ligands contain both hydrogen bonding donors and acceptors, hydrogen bonding interactions play a crucial role in construction of supramolecular structures. In compound 1, the mono-nuclear complexes were connected to dimer structure by hydrogen bondings; in compound 2, dimer units were constructed through intermolecular hydrogen bondings and the crystallographic water molecules link the dimers into a 1-D supramolecular chain; and in compound 3, a complicated 3-D supramolecular architecture was formed via a series of hydrogen bondings. Moreover, the compounds 1–3 display room-temperature luminescent properties. [Copyright &y& Elsevier]
- Subjects :
- *LIGANDS (Chemistry)
*ORGANIC compounds
*X-ray diffraction
*HYDROGEN bonding
Subjects
Details
- Language :
- English
- ISSN :
- 00222860
- Volume :
- 875
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Journal of Molecular Structure
- Publication Type :
- Academic Journal
- Accession number :
- 31254512
- Full Text :
- https://doi.org/10.1016/j.molstruc.2007.03.061