Synthesis and structural characterization of silver(I) complexes with moon-shaped benzo[1,2-b;4,3-b′]dithiophene phosphine derivative ligands |
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| Authors: | M Helena Garcia Pedro Florindo M Fátima M Piedade M Teresa Duarte |
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| Institution: | 1. Centro de Ciências Moleculares e Materiais, Faculdade de Ciências da Universidade de Lisboa, Ed.C8, Campo Grande, 1749-016 Lisboa, Portugal;2. Centro de Química Estrutural, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal |
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| Abstract: | New silver complexes of general formula Ag(O3SCF3)(PPh2{bzt})n] (n = 1–3, bzt = benzo1,2-b;4,3-b′]dithiophene) have been synthesized and characterized. Spectroscopic studies shown neutral ligand fluxionallity, typical of silver(I) complexes. The solid state structure of the complexes was determined by X-ray crystallographic studies, showing a decrease in structure complexity with increasing number of neutral ligands in silver coordination sphere: Ag(O3SCF3)(PPh2{bzt})] is a dimer with two bridging triflate anions, further linked into polymeric bidimensional chains along bc plane, through Ag?Ph close contacts; Ag(O3SCF3)(PPh2{bzt})2] is also a dimmer with two bridging triflate anions, displaying an interesting packing feature, with zig-zag alignment of bzt groups along direction b; Ag(O3SCF3)(PPh2{bzt})3] is a monomer. |
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| Keywords: | Silver complexes Crystal structures Trifluoromethanesulfonate complexes Benzo[1 2-b 4 3-b&prime ]dithiophene |
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