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Spectrochemistry of Solutions. Part 14. Raman and Infrared Sectra of Thiocyanatosilver(I) Complexes in Some Non-aqueous Solutions

DOI: 10.1039/DT9810001708

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Journal of the Chemical Society, Dalton Transactions p. 1708 - 1713 (1981)

Update date:2022-08-17

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Authors:

Gans, PeterGans, Peter

Gill, J. BernardGill, J. Bernard

Fearnley, D. PeterFearnley, D. Peter

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Article abstract of DOI:10.1039/DT9810001708

Infrared and Raman spectra have shown that, when Ag(1+) is complexed by SCN(1-), the species present and the equilibrium steps involved are solvent specific.In pyridine, complexation of Ag(1+) by SCN(1-) passes through (1+) and AgSCN to (1-).Only AgSCN and (1-) have been identified in tetrahydrofuran, dimethyl sulphoxide, and acetone, and only (1-) was found in propylene carbonate.Solutions in dimethylformamide and dimethylacetamide at high /ratios contain a small proportion of the SCN(1-) in the bridged complex (1-), but in trimethyl phosphate the SCN(1-) is approximately equally distributed between (1-) and (1-).The spectra of thiocyanatosilver(I) complexes in hexamethylphosphoramide differ from those of all the other solutions; no linear (1-) complex is found and two feasible explanations of the spectra are offered.No complex higher than (1-) occurs in any of these solutions.

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Product name:SILVER THIOCYANATE

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