A single crystal of the {Ag[Ph(2)P(CH2)(2)SCH2CH3)ClO4 complex, [Ag(PSEt)(2)]ClO4, has been isolated from anhydrous propylene carbonate solution containing AgClO4 and the ligand in a 1:2 ratio. An X-ray diffraction analysis, carried out by adopting the heavy-atom method, shows that no solvent molecules are present in the adduct, enabling the PSEt ligand to behave as a chelating agent, both P and S atoms being coordinated to the metal ion. The coordination geometry around silver(I) can be described as a distorted tetrahedron with a P-Ag-P' angle of 148.9(1)degrees; this is most likely due to the repulsion between two phenyl rings (C4...C4'=3.96 Angstrom) which has the further consequence of lowering the S-Ag-P bond angle to 82.5(1)degrees.
The crystal structure of a chelate silver(I) complex: {Ag[Ph2P(CH2 )2 SCH2CH3 ]2}ClO4.
DI BERNARDO, PLINIO;ZANONATO, PIER LUIGI
1994
Abstract
A single crystal of the {Ag[Ph(2)P(CH2)(2)SCH2CH3)ClO4 complex, [Ag(PSEt)(2)]ClO4, has been isolated from anhydrous propylene carbonate solution containing AgClO4 and the ligand in a 1:2 ratio. An X-ray diffraction analysis, carried out by adopting the heavy-atom method, shows that no solvent molecules are present in the adduct, enabling the PSEt ligand to behave as a chelating agent, both P and S atoms being coordinated to the metal ion. The coordination geometry around silver(I) can be described as a distorted tetrahedron with a P-Ag-P' angle of 148.9(1)degrees; this is most likely due to the repulsion between two phenyl rings (C4...C4'=3.96 Angstrom) which has the further consequence of lowering the S-Ag-P bond angle to 82.5(1)degrees.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
