Definition: Stereoelectronic effects – interactions of electronic orbitals in three dimensions. The typical stereoelectronic effect involves an electronic interaction which stabilizes a particular conformation or transition state and is fully expressed only when the correct geometry is achieved. Stereoelectronic Effects in Cl2 Elimination from Binuclear Pt(III) A stereoelectronic preference for halogen elimination from a facial Pt(III). Department of Chemistry, University of Regensburg. Online class in Advanced Organic Chemistry designed.
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Our model stereoelectronic effects based on the assumption of a strong polarization of the guanine bases in Z-DNA that is consistent with the Z-DNA-specific guanine O6 and N7 coordination to metal and organic cations and the proximity of its N2 and C8 positions to neighboring phosphate groups, as well as several other Z-DNA-specific conformational features.
In a similar cyclobutene stereoelectronic effects reaction, the trimethylsilyl groupwhich is very bulky, still favors the inward rotation. Journal of Molecular Structure: Chemistry Lecture Notes.
Stereoelectronic effects in organic chemistry 1st ed.
However, stereoelectronic effects practice, many chemists e. Deslongchamps goes so far as to describe stereoelectronic effects as originating from the stereochemical relationship of electron pairs.
However, a single PLP-dependent enzyme is quite specific, catalyzing only a single type of reaction. This raises the question of how Stereoelectronic effects enzymes maintain their reaction specificity when using a cofactor that can catalyze multiple reactions.
In answer to this question, Dunathan proposed in that PLP-dependent enzymes employ stereoelectronic effects to control their reaction specificity. Stereoelectronic effects in the reaction of aromatic substrates catalysed by Halomonas elongata transaminase and its mutants M.
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