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divalent

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divalent /di·va·lent/ (di-va´lent) bivalent; carrying a valence of two.
di·va·lent (d-vlnt)
adj.
Bivalent.

di·valence, di·valen·cy n.

divalent,
referring to a chemical valency of two. Also bivalent.

divalent [di-va´lent]
bivalent; having a valence of two.

divalent
1. bivalent.
2. carrying an electronic charge of two units.


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2] are each independently hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; M optionally is a divalent hydrocarbon connecting group of from 1 to about 20 carbon atoms to link the silicon atom and the L group; L is a covalently bound hydrocarbon linking group of from 1 to about 20 carbon atoms or a heteroatom linking group selected from the group consisting of --O--, --S--, --[NR.
The authors provide an introduction to the various models of these chemical shifts before discussing the specific mechanisms for hydrocarbons, aromatics, monovalent substituents and divalent substituents.
Z is selected from hydrogen or alkyls and Lis selected from divalent alkylenes and L may be interrupted by one or more divalent aromatic groups or heteroatomic groups.
 
 
 
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