Chandrasekhar, Vadapalli ; Thomas, K. Rajapandian Justin ; Vivekanandan, Kannan ; Andavan, G. Thangavelu Senthil ; Nagendran, Selvarajan ; Kingsley, Savariraj ; Tiekink, Edward R. T. (1999) Tridentate N3 capping coordination behaviour of potentially multi-site coordinating cyclotriphosphazenes: synthesis and spectroscopic studies of 2,2-spiro(1,3-propanediamino)-4,4,6,6-tetrakis(3,5-dimethylpyrazolyl)cyclotriphosphazene, 2,2-diamino-4,4,6,6-tetrakis(3,5-dimethylpyrazolyl)-cyclotriphosphazene and their mononuclear complexes; X-ray structure of ATPCTP·CoCl2 Inorganica Chimica Acta, 286 (2). pp. 127-133. ISSN 0020-1693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00201...
Related URL: http://dx.doi.org/10.1016/S0020-1693(98)00387-9
Abstract
Two new potentially multi-site coordinating cyclophosphazenes, gem-N3P3[HN(CH2)3NH](3,5-Me2Pz)4 (STPCTP) and gem-N3P3(NH2)2(3,5-Me2Pz)4 (ATPCTP) have been synthesised and characterised. These form mononuclear complexes with Cu(II), Co(II) and Ni(II) halides which have been studied by optical spectroscopy. An X-ray analysis of ATPCTP·CoCl2 shows the Co(II) atom to exist in a distorted trigonal bipyramidal geometry in which the two chloride atoms and a nitrogen atom of the cyclophosphazene ring form the equatorial plane; the axial positions are occupied by nitrogen atoms derived from the two non-geminal pyrazolyl substituents. The amino substituents on the cyclophosphazene ring do not take part in coordination.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Crystal Structures; Copper Complexes; Cobalt Complexes; Nickel Complexes; Cyclophosphazene Complexes |
| ID Code: | 8776 |
| Deposited On: | 28 Oct 2010 10:52 |
| Last Modified: | 28 Oct 2010 10:52 |
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