Nucleophilic Attack at Selenium in Diselenides and Selenosulfides. A Computational Study
The Journal of Physical Chemistry A2004Vol. 108(18), pp. 4040–4046
Citations Over TimeTop 11% of 2004 papers
Abstract
Nucelophilic substitution at selenium is examined using the B3LYP and MP2 methods. Various nucleophiles (HS-, CH3S-, HSe-, and CH3Se-) and substrates (R1SSeR2 and R1SeSeR2 with R1 and R2 = H or Me) are used to model substitution at selenium in diselenides and selenosulfides. In all cases, the mechanism is addition−elimination. A stable hypercoordinate selenium intermediate lies in a well that is 8−14 kcal mol-1 deep. Nucleophilic attack at selenium is both kinetically and thermodynamically more favorable than at sulfur.
Related Papers
- → Development and application of a HPLC-ICP-MS method to determine selenium speciation in muscle of pigs treated with different selenium supplements(2019)84 cited
- → Selenium Supplementation of Naturally High Selenium Diets for Swine(1973)27 cited
- Distribution of selenium in selenite-enriched soybean(2014)
- → Mobilization of selenium by a selenium-dependent bacterium(1990)2 cited
- Study of selenium application on absorption and transformation of selenium in Cardamine violifolia(2014)