First examples of metal cyclohexylphosphonates: Influence of the choice of synthetic route on the product
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Title |
First examples of metal cyclohexylphosphonates: Influence of the choice of synthetic route on the product
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Creator |
MURUGAVEL, R
DAVIS, P WALAWALKAR, MG |
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Subject |
structural-characterization
zirconium-phosphate pyrazole ligands phosphonates cage intercalation cobalt model ions aluminophosphonate cobalt phosphorus phosphonate complexes inclusion compounds |
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Description |
The first divalent metal cyclohexylphosphonate derivative, [CO(O3PCy)-H2O](n) (1) has been synthesized using four different synthetic methodologies in the presence of added amines. The new phosphonates have been characterized with the aid of analytical, thermoanalytical, spectroscopic, and powder XRD studies. The nature and particle size of the product formed is highly dependent on the method employed (viz. (a) room temperature synthesis, (b) hydrothermal synthesis, (c) microwave assisted synthesis, and (d) a biphasic reaction) as revealed by SEM and TEM studies. While in most cases the metal phosphonates were isolated as insoluble crystalline powders directly from the reaction mixture, the use of 3,5-dimethylpyrazole (DMP) as co-ligand leads to the isolation of soluble compound [{Co(H2O)(4)(DMP)(2)} {CYPO3H}(2)](n) (2) as single crystals. The X-ray diffraction studies on 2 reveal a hydrogenbonded polymeric structure for this compound. Crystal data: C22H48CoN4O10P2, monoclinic, P2(1)/c, a = 12.147(2), b = 11.607(2), c = 11.872(2) angstrom, beta = 104.00(3)degrees, V = 1624.2(5) angstrom(3), Z = 2, R1 (all data) = 0.050, wR2 (all data) = 0.145.
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Publisher |
WILEY-V C H VERLAG GMBH
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Date |
2011-09-01T16:49:04Z
2011-12-26T12:59:43Z 2011-12-27T05:52:27Z 2011-09-01T16:49:04Z 2011-12-26T12:59:43Z 2011-12-27T05:52:27Z 2005 |
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Type |
Article
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Identifier |
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 631(13-14), 2806-2811
0044-2313 http://dx.doi.org/10.1002/zaac.200500156 http://dspace.library.iitb.ac.in/xmlui/handle/10054/12824 http://hdl.handle.net/10054/12824 |
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Language |
en
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