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Pamoic acid in forming metallo-organic framework: Synthesis, characterization and first crystal structure of a dimeric Ti(IV) complex

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Title Pamoic acid in forming metallo-organic framework: Synthesis, characterization and first crystal structure of a dimeric Ti(IV) complex
 
Creator BAGHEL, GS
RAO, CP
 
Subject pamoate
property
4,4 '-methylene-bis (3-hydroxy-2-naphthalene carboxylic acid)
dimeric ti(iv) complex
octahedral ti(iv) center
helical structure
 
Description Two novel dinuclear Ti(IV) complexes of the ligand, 4,4'-methylene-bis (3-hydroxy-2-naphthalene carboxylic acid) (H(4)L) or pamoic acid having compositions, [(HL)(2)Ti(2)(mu-O)(DMF)(2)]center dot(DMF)(6) (1) and [(L)(2)Ti(2)(mu-O)(DMF)(2)]center dot(DMF)(4)(4,4'-Bipy-2H)(H(2)O),(2) have been synthesized and characterized by analytical and spectral methods and the structure has been established by single crystal XRD. Unlike the reported polymeric structures observed in case of H(4)L or pamoic acid, the anti-conformation of H(4)L changes to syn - orientation to avoid poly-metallic complex formation, as noticed in 1 and 2. The dimeric Ti(IV) units stack in the lattice to form helical columns and the space between the adjacent columns is being filled by the solvent molecules in 1 and solvent plus the protonated 4,4'-bipy in the lattice of 2 and thus the neighbor columns are connected through weak interactions. (c) 2009
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-25T21:23:18Z
2011-12-26T12:57:13Z
2011-12-27T05:47:12Z
2011-08-25T21:23:18Z
2011-12-26T12:57:13Z
2011-12-27T05:47:12Z
2009
 
Type Article
 
Identifier POLYHEDRON, 28(16), 3507-3514
0277-5387
http://dx.doi.org/10.1016/j.poly.2009.07.050
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11151
http://hdl.handle.net/10054/11151
 
Language en