Cis-trans isomerism in a square-planar platinum(II) complex bearing bulky fluorinated phosphane ligands.
Acta Crystallogr C Struct Chem
; 72(Pt 4): 268-73, 2016 Apr.
Article
in En
| MEDLINE
| ID: mdl-27045175
ABSTRACT
Transition-metal complexes bearing fluorinated phosphane and thiolate ligands has been an area of study in recent years and the chemical context of the current work is related to the metal-assisted functionalization of fluorinated derivatives. The cis and trans isomers of the square-planar complex bis[(pentafluorophenyl)diphenylphosphane-κP]bis(2,3,5,6-tetrafluorobenzenethiolato-κS)platinum(II), [Pt(C6HF4S)2{P(C6H5)2(C6F5)}2], have been crystallized from a single chromatographic fraction and characterized by X-ray diffraction analysis. The stabilization of the cis isomer results from weak intramolecular π-stacking interactions and possibly from the formation of a C-F...Pt contact, characterized by an F...Pt separation of 2.957â
(6)â
Å. The natural bond orbital analysis (NBO) for this isomer confirms that the corresponding Fâ
ââ
Pt charge transfer accounts for 6.92â
kcalâ
mol(-1) in the isomer stabilization. Such interactions are not present in the centrosymmetric trans isomer.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Acta Crystallogr C Struct Chem
Year:
2016
Document type:
Article
Affiliation country:
Mexico