Monodentate S-vs. bidentate 1,5-O,S-coordination of N-phosphoryl-N′-(R)-thioureas with Pd(II)

Autor:	Felix D. Sokolov, Łukasz Szyrwiel, Damir A. Safin, Maria G. Babashkina, Timur R. Gimadiev, Henryk Kozlowski, Sergey V. Baranov
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Denticity Ligand Stereochemistry chemistry.chemical_element Crystal structure Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Thiourea Materials Chemistry Chelation Physical and Theoretical Chemistry Acetonitrile Crown ether Palladium
Zdroj:	Polyhedron. 27:1995-1998
ISSN:	0277-5387
Popis:	Reaction of N-phosphorylated thioureas of common formula RNHC(S)NHP(O)(OiPr)2 (R = tBu, HLI; R = Ph, HLII; R = 4′-benzo-15-crown-5, HLIII) with Pd(PhCN)2Cl2 in acetonitrile leads to complexes of the structure Pd(HLI-S)2Cl2 (1), Pd(HLII-S)2Cl2 (2) and Pd(HLIII-S)2Cl2 (3). Reaction of N-phosphorylated thioureas of common formula RC(S)NHP(O)(OiPr)2 (R = Et2N, HLIV; R = morpholine-N-yl, HLV) in the same conditions leads to complexes Pd(LIV-O,S)2 (4) and Pd(LV-O,S)2 (5), where the palladium(II) atoms are coordinated in a square-planar fashion by the C S sulfur atoms and the P O oxygen atoms of two anionic ligands. The crystal structure of complex 1 has been investigated by X-ray crystallography. It was established that the thiourea ligands are in a trans-configuration and the palladium(II) cation is coordinated by the sulfur atoms of the C S groups and the chlorine atoms. Complex 1 is the first example of palladium(II) complex in which the potentially chelating N-phosphorylated thiourea ligand is bound through the sulfur atom only.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::15dc2cf6859a646d5323805a141ce665 https://doi.org/10.1016/j.poly.2008.03.012 Zobrazit plný text záznamu Full Text from ScienceDirect