Selenium Tellurolates

Metal-Sulfur, -Selenium, and -Tellurium Bond Lengths, M—E—C Angles, and Torsion Angles for Three-Coordinate Aluminum, Gallium, and Indium Thiolates, Selenolates and Tellurolates", and Related Compounds... 

Mixed silver telluride-tellurolate complexes have been prepared in a similar manner to those of selenium. The reactions of a silver salt with RTeTMS in the presence of phosphines as stabilizing agents are reported in Scheme 9 1043-1046... 

The reaction of a polar organometallic compound with elemental sulfur, selenium or tellurium gives a thiolate, selenolate or tellurolate, respectively [60, 61] in many syntheses, however, further reactions are carried out with the intermediary chalcogenates , e.g. alkylations ... 

The self-assembly of organoaluminum selenolates and tellurolates, by dative bonding, into supermolecules is remarkable in view of the relatively weak donor properties of selenium and tellurium (soft bases) towards aluminum (hard add). 

Comasseto et al. reported the smooth reductive deselenation of a-phenylseleno esters in the presence of 2.5 mol% of 211 (Scheme 7.33) [160]. In this highly unusual reaction, a putative mechanistic pathway involves a tellurolate (from NaBH -reduction) that attacks at selenium in a nncleophilic substitution reaction with the ester enolate as leaving group. 

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