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Premium The First Copper Complexes Bearing the 1,3,5‐Triaza‐7‐phosphaadamantane (PTA) Ligand
Kirillov Alexander M.,
Smoleński Piotr,
Guedes da Silva M. Fátima C.,
Pombeiro Armando J. L.
Publication year2007
Publication title
european journal of inorganic chemistry
Resource typeJournals
PublisherWILEY‐VCH Verlag
Abstract The Cu I compound [Cu(PTAH) 4 ](NO 3 ) 5 ( 1 ) {PTAH = N ‐protonated form of 1,3,5‐triaza‐7‐phosphaadamantane (PTA)} was easily prepared by reacting hydrated Cu(NO 3 ) 2 and PTA in aqueous acidic solution at room temperature. Further treatment of 1 with sodium hydroxide in water led to an unprotonated PTA derivative [Cu(PTA) 4 ](NO 3 ) ( 2 ). Both compounds are water‐soluble and air‐stable, and were characterized by IR, 1 H‐, 13 C{ 1 H}‐, 31 P{ 1 H}‐ and 63 Cu NMR spectroscopy, FAB‐MS(+), elemental and single‐crystal X‐ray diffraction structural analyses. They exhibit a nearly regular tetrahedral coordination environment about each copper centre filled by the phosphorus atoms of the four PTAH/PTA moieties, which show distinct and unusual geometrical arrangements if viewed along the P–Cu bonds. The 31 P{ 1 H}‐ and 63 Cu NMR spectra of 2 in D 2 O solution show spin coupling between the 31 P and 63 Cu nuclei at room temperature. These compounds represent the first examples of Cu complexes bearing PTA or any derived ligand with a cagelike PTA core and expand the restricted family of aqua‐soluble copper phosphane complexes. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Subject(s)aqueous solution , biochemistry , chemistry , copper , crystal structure , crystallography , denticity , inorganic chemistry , ion , ligand (biochemistry) , nuclear magnetic resonance spectroscopy , organic chemistry , protonation , receptor , stereochemistry
SCImago Journal Rank0.667

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