A new polymorph of (O‐ethyl dithiocarbonato‐κ2S,S′)bis(triphenylphosphine‐κP)silver(I) |
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Authors: | Irene Ara Fatima El Bahij Mohamed Lachkar Najib Ben Larbi |
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Abstract: | A new triclinic polymorphic modification of the title compound, Ag(C3H5OS2)(C18H15P)2], has been found and compared with the previously known orthorhombic modification Tiekink (1988). Coord. Chem. 17 , 239–243]. The two polymorphs have the same molecular shape, viz. a distorted tetrahedral geometry, with a chelating dithiocarbonate (xanthate) and two PPh3 ligands bonded to the Ag atom. However, in this new polymorph, the xanthate ligand is bonded asymmetrically to the Ag atom, with Ag—S distances of 2.5489 (6) and 2.8055 (7) Å, while for the orthorhombic polymorph these distances are 2.686 (4) and 2.601 (4) Å. The Ag—P distances are similar in both structures. |
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