TY - JOUR
T1 - Preparation and structural characterization of Ph3Sn(IV)+ complexes with pyridinecarboxylic acids or hydroxypyridene, -pyrimidine and –quinoline.
AU - Pellerito, Lorenzo
AU - Scopelliti, Michelangelo
AU - Hered, Mónika
AU - Galbács, Gábor
AU - Szorcsik, Attila
AU - Deák, Andrea
AU - Nagy, László
PY - 2006
Y1 - 2006
N2 - A number of [Ph3Sn(IV)](+) complexes formed with ligands containing -OH (-C=O), or -COOH group(s) and aromatic IN) donor atom have been prepared. The binding sites of the ligands were identified by FT-IR spectroscopic measurements. In the complexes containing hydroxy and carboxylate functions, the carboxylato group is coordinated to the organotin(IV) centres in monodentate or bridging bidentate manner. It was also found that in the hydroxypyridine and -pyrimidine complexes the [Ph3Sn(IV)]+ moiety in most cases reacts with the phenolic form of the ligands. The rationalisation of the experimental Sn-119 Mossbauer nuclear quadrupole splittings, vertical bar Delta(exp)vertical bar - according to the point charge model formalism - together with the FT-IR data support the formation of trigonal bipyramidal (Tbp) or octahedral (O-h) molecular structures. Furthermore, X-ray diffraction analysis has been performed on the triphenyltin(IV)-3-phenolato-2(1H )-pyriditione-O,O' single crystals. The penta-coordinated tin center exhibits a Tbp geometry. In case of 2-picolinic acid, a trans-phenylation was observed during the complexation, resulting [Ph2Sn(IV)](2+) complex and Ph4Sn(IV). (c) 2005 Elsevier B.V. All rights reserved.
AB - A number of [Ph3Sn(IV)](+) complexes formed with ligands containing -OH (-C=O), or -COOH group(s) and aromatic IN) donor atom have been prepared. The binding sites of the ligands were identified by FT-IR spectroscopic measurements. In the complexes containing hydroxy and carboxylate functions, the carboxylato group is coordinated to the organotin(IV) centres in monodentate or bridging bidentate manner. It was also found that in the hydroxypyridine and -pyrimidine complexes the [Ph3Sn(IV)]+ moiety in most cases reacts with the phenolic form of the ligands. The rationalisation of the experimental Sn-119 Mossbauer nuclear quadrupole splittings, vertical bar Delta(exp)vertical bar - according to the point charge model formalism - together with the FT-IR data support the formation of trigonal bipyramidal (Tbp) or octahedral (O-h) molecular structures. Furthermore, X-ray diffraction analysis has been performed on the triphenyltin(IV)-3-phenolato-2(1H )-pyriditione-O,O' single crystals. The penta-coordinated tin center exhibits a Tbp geometry. In case of 2-picolinic acid, a trans-phenylation was observed during the complexation, resulting [Ph2Sn(IV)](2+) complex and Ph4Sn(IV). (c) 2005 Elsevier B.V. All rights reserved.
KW - -pyrimidine and pyridinecarboxylato complexes; Mossbauer; FT-IR; X-ray diffraction
DICARBOXYLIC-ACIDS; DERIVATIVES; 2-HYDROXYPYRIDINE; COORDINATION; LIGANDS
KW - triphenyltin(IV); hydroxypyridine
KW - -pyrimidine and pyridinecarboxylato complexes; Mossbauer; FT-IR; X-ray diffraction
DICARBOXYLIC-ACIDS; DERIVATIVES; 2-HYDROXYPYRIDINE; COORDINATION; LIGANDS
KW - triphenyltin(IV); hydroxypyridine
UR - http://hdl.handle.net/10447/3813
M3 - Article
VL - 691(8)
SP - 1622
EP - 1630
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
ER -