Barnett, S. A., Blake, A. J., Champness, N. R., Nicolson, J. E.B. and Wilson, C. (2001) Synthesis and structural characterisation of cadmium(II) and zinc(II) coordination polymers with an angular dipyridyl bridging ligand: parallel interpenetration of two-dimensional sheets with 4.82 topology. Journal of the Chemical Society: Dalton Transactions, 2001(5), pp. 567-573. (doi: 10.1039/b008715g)
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Abstract
Coordination polymers formed between Cd(NO3)2 or Zn(NO3)2 and 2,4-bis(4-pyridyl)-1,3,5-triazine (dpt) have been synthesized and their single crystal structures determined. Reaction of a 1 ∶ 1 ratio of Cd(NO3)2 with dpt in MeCN–CH2Cl2 affords the complex [Cd2(NO3)4(dpt)2(MeCN)]∞ 1 which exists as a doubly interpenetrated 4.82 two-dimensional sheet in the solid state. Each sheet is constructed from nitrate-bridged [Cd(dpt)]4 metallacycles. In sharp contrast the analogous reaction performed using a 2 ∶ 1 L ∶ M ratio affords the discrete molecular complex [Cd(NO3)2(dpt)2(MeCN)] 2 in which both dpt ligands act as terminal donors rather than bridging metal centres. Reaction of Cd(NO3)2 with dpt in EtOH–CH2Cl2 affords a one-dimensional coordination polymer [Cd(NO3)2(dpt)(EtOH)]∞ 3. Zn(NO3)2 reacts with dpt in either a 1 ∶ 1 or 2 ∶ 1 L ∶ M ratio to afford the one-dimensional polymer [Zn(NO3)2(dpt)]∞ 4 which can be isolated as two polymorphs 4a and 4b which differ in their nitrate binding modes. The product formed is independent of the L ∶ M ratio used in the reaction. Only 4a is formed when MeCN–CH2Cl2 is used as reaction solvent whereas both 4a and 4b are formed from either EtOH–CH2Cl2 or iPrOH–CH2Cl2.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Wilson, Dr Claire |
Authors: | Barnett, S. A., Blake, A. J., Champness, N. R., Nicolson, J. E.B., and Wilson, C. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Journal of the Chemical Society: Dalton Transactions |
Publisher: | Royal Society of Chemistry |
ISSN: | 0300-9246 |
ISSN (Online): | 2050-5671 |
Published Online: | 09 February 2001 |
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