TITLE

Synthesis and characterization of bis(ferrocenylcarboxylato)telluranes

AUTHOR(S)
Srivastava, Prakash C.; Bajpai, Sangeeta; Kumar, Rajesh; Srivastava, Shikha; Singh, Vikas; Dwivedi, Shrinkhala; Butcher, Ray J.
PUB. DATE
July 2007
SOURCE
Canadian Journal of Chemistry;Jul/Aug2007, Vol. 85 Issue 7/8, p534
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A convenient route to the synthesis of the first bis(ferrocenyl carboxylato) telluranes has been developed. Reactions of 1,1,2,3,4,5,6-heptahydro-1,1-(dihydroxo)tellurane and 1,1,2,3,4,5-hexahydro-1,1-(dihydroxo)tellurophene with ferrocene carboxylic acid give 1,1,2,3,4,5,6-heptahydro-1,1-bis(ferrocenyl carboxylato)tellurane (3) and 1,1,2,3,4,5,-hexahydro-1,1-bis(ferrocenyl carboxylato)tellurophene (5), respectively. The X-ray structure of 3 shows that it contains a tellurium heterocycle (C5H10Te), present in a chair conformation, sandwiched between two ferrocene units with carboxylate groups acting as spacers. Compound 3 also exhibits modest second harmonic generation (SHG) efficiency. The electrochemical studies of 3 and 5 through cyclic voltammetry show only one oxidation wave, indicating the presence of independent redox centers leading to reversible single-step two-electron redox systems.
ACCESSION #
26017841

 

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