Carbon-hydrogen bond

Carbon-hydrogen bond

A carbon-hydrogen bond, also known as a C-H bond is a single bond between carbon and hydrogen atoms, most commonly found in organic compounds [JerryMarch] . Carbon-hydrogen bonds have a bond length of 1.09 Å (1.09 × 10-10 m) and a bond energy of 413 kJ/mol.Using Paulings scale; C (2.5), H (2.1) the electronegativity difference between these two atoms is 0.4. The bond type this electronegativity difference determines is generally regarded as being non-polar.

Compound classes consisting solely of C-H bonds and C-C bonds are alkanes, alkenes, alkynes, arene compounds and fullerenes.

The C-H bond in general is very unreactive, in structural formula of molecules the hydrogen atoms are in fact omitted. In several compounds classes, collectively called carbon acids, the C-H bond can be sufficiently acidic for proton removal. Unacticated C-H bonds participate in radical substitution. Another reaction type involving C-H bonds is so-called C-H bond activation mediated by metals.

ee also

*Hydrocarbon

References


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