Silver thiocarboxylate

Like the chlorides 153 and the bromides 154, treating phenylmercury thiocar-boxylates with iodine yields the acylsulfenyl iodides 155 in moderate yields (Scheme 20) [ 146]. Moreover, silver thiocarboxylates undergo S-iodination with JV-iodosuccinimide (NIS) to give 155 [148]. Trifluoroacetylsulfenyl iodide has been isolated [228]. The use of diphenylstannyl bis(thiocarboxylates) instead of PhHg(RCOS) is more effective [149]. 

Esters and lactones. Treatment of the 2-pyridyl ester of a thiocarboxylic S-acid such as (1), prepzured as shown, with either silver tetrafluoroborate or silver... 

Other sulphur(II) compounds also form self-assembled layers on gold and silver surfaces. Alkyl xanthate ions ROCS2 are coordinated to the surface through both S atoms and therefore have good stability. FT-IR analysis revealed that alkane chains in these monolayers are well-packed and ordered. Alkyl xanthates and dithiocarbamates were also reported to form monolayers on the surface of Ag coUoids . Thioalkanoic acids RCOSH form well-packed monolayers on both Au(lll) and Ag(lll) surfaces. However, these monolayers exhibit only short-term stability due to hydrolysis of the thiocarboxyl group. ... 

---