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Substituent group rotation, comparison between

COMPARISON BETWEEN BACKBONE DYNAMICS AND SUBSTITUENT GROUP ROTATION... [Pg.282]

There is little evidence to distinguish between A, B or C. X-ray studies of a number of diene iron tricarbonyl complexes have been made.f A comparison of the observed bond distances between the terminal carbons of diene systems and the adjacent carbons of a substituent group (1-44-1 49 A) with the calculated distances for an s/ hydridized terminal carbon (1-48 A) and an sp hybridized carbon atom (1-52-1-54 A) slightly favours structures A and C [16]. The C -H coupling constants of butadiene iron tricarbonyl are more consistent with sp hybridized carbons than with hybridization [16a]. The data also suggests that there is a small rotation of the CH2 hydrogens out of the C4-plane. [Pg.72]

See other pages where Substituent group rotation, comparison between is mentioned: [Pg.283]    [Pg.161]    [Pg.161]    [Pg.679]    [Pg.679]    [Pg.236]    [Pg.96]    [Pg.486]    [Pg.316]    [Pg.33]    [Pg.158]    [Pg.88]    [Pg.103]    [Pg.130]    [Pg.391]    [Pg.30]    [Pg.44]    [Pg.88]    [Pg.5]    [Pg.123]    [Pg.5]    [Pg.277]    [Pg.29]    [Pg.334]    [Pg.127]    [Pg.316]    [Pg.4]    [Pg.30]   


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Comparison between

Groups substituents

Rotation group

Rotational groups

Substituent groups

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