REACTION OF TETRAKIS[(3-PYRIDYLMETHYL)OXY] P-TERT-BUTYLCALIX(4)ARENE WITH KAUCL4 AND K2PTCL6 - NEW PYRIDINOCALIX(4)ARENE ADDUCTS OF GOLD(III) AND PLATINUM(IV)

Authors
DENAMOR AFD VALARDE FJS CABALEIRO MC
Citation
Afd. Denamor et al., REACTION OF TETRAKIS[(3-PYRIDYLMETHYL)OXY] P-TERT-BUTYLCALIX(4)ARENE WITH KAUCL4 AND K2PTCL6 - NEW PYRIDINOCALIX(4)ARENE ADDUCTS OF GOLD(III) AND PLATINUM(IV), Polyhedron, 16(11), 1997, pp. 1885-1888
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
16
Issue
11
Year of publication
1997
Pages
1885 - 1888
Database
ISI
SICI code
0277-5387(1997)16:11<1885:ROTPW>2.0.ZU;2-4
Abstract
Tetrakis [(3-pyridylmethyl)oxy]p-tert-butylcalix(4) arene prepared fro m p-tert-butylcalix(4) arene and 3-chloromethylpyridine under basic co nditions was characterized by H-1 and C-13 NMR. Protonation constants of this ligand in methanol at 298.15 K derived from potentiometric dat a are reported. Au-III and Pt-IV adducts of kis[(3-pyridylmethyl)oxy]p -tert-butylcalix(4)arene have been isolated. It is concluded that this calixarene derivative displaces chloride ions from the coordination s pheres of the central atoms in AuCl4- and PtCl6- species, engaging its elf in direct interaction with Au-III and Pt-IV. (C) 1997 Elsevier Sci ence Ltd.