Metal carbonyls, mercapto

As an example, both monofunctional and multifunctional polymeric mercapto-esters were deposited onto optically smooth silicon wafers coated with vapor-deposited copper. The copper had been oxidized to Cu20, as verified by XPS. Infrared reflectance (RAIRS) at 81° (4 cm-1 resolution, 2000 scans) using an MCT detector yielded information on both the nature and the durability of the mercaptoester bond to the metal oxide film. A 16 cm l shift (1740— 1724 cm-1) was observed in the carbonyl absorption of stearyl thioglycolate (STG) deposited onto the Cu20 mirror. The absorption spectrum of the carbonyl region is illustrated in Fig. 11, both for the pure STG and the reacted monolayer. 

Benzoic acid, mercapto-lithographic printing plates, 101 Benzonitrile hydrolysis metal catalysis, 449 Benzoquinone dioximates metal complexes non-integral oxidation states, 144 Benzylamine oxidase, 700 Benzyl halides carbonylation... 

There has not been much research in the area of metal-catalyzed reactions of thiiranes, which are sulfur analogues of epoxides. It has been shown that chlorodicarbonylrhodium(I) dimer can catalyze the homogeneous desulfurization of thiiranes to olefins [35]. This reaction is stereospecific and proceeds for thiiranes having aliphatic, aromatic, ether, and ester substituents (Equation (6.8)). This chemistry contrasts with that observed with cobalt. At room temperature, when 2-phenylthiirane, was treated with CO (latm), CH3I, KOH, CgHg, tetrabutylam-monium bromide, and a catalytic amount of cobalt carbonyl, fl-mercapto acid, was... 

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