A new tricarbonyl fac-[M(acac)(isc)(CO)3] complex (M=Re, 99mTc) with acetylacetonate (acac) and isocyanide (isc) in a 2+1 combination

Autor: Aris Terzis, Catherine P. Raptopoulou, Minas Papadopoulos, Marina Sagnou, Ioannis Pirmettis, Charalambos Tsoukalas, Maria Pelecanou, Charalambos Triantis
Rok vydání: 2010
Předmět:
Zdroj: Inorganica Chimica Acta. 363:1649-1653
ISSN: 0020-1693
Popis: The synthesis and characterization of the neutral 2+1 mixed ligand complex fac- Re(CO) 3 (acac)(isc) ( 4 ) with acetylacetonate (acac) as the bidentate ligand and an isocyanide (the isocyanocyclohexane, isc) as the monodentate ligand is described. The synthesis of 4 proceeds through the intermediate formation of the fac- Re(acac)(H 2 O)(CO) 3 precursor complex 2 . Complex 4 was characterized by elemental analysis, spectroscopic methods, and X-ray crystallography showing a distorted octahedral arrangement of the ligands around Re. At technetium-99m level, the corresponding fac - 99m Tc(acac)(isc)(CO) 3 complex 5 was obtained in high yield by reacting the fac - 99m Tc(acac)(H 2 O)(CO) 3 precursor complex 3 with isocyanocyclohexane and its structure was established by chromatographic comparison with the prototypic rhenium complex using high performance liquid chromatography.
Databáze: OpenAIRE