Preferred Label : amorphous carbon;
IUPAC definition : A carbon material without long-range crystalline order. Short-range order exists,
but with deviations of the interatomic distances and/or interbonding angles with respect
to the graphite lattice as well as to the diamond lattice.;
Scope note : the term amorphous carbon is restricted to the description of carbon materials with
localized p-electrons as described by p.w.anderson (phys. rev., 1958, 109, 1492).
deviations in the c–c distances greater than 5% (i.e. dxx00.05, where x0 is the inter-atomic
distance in the crystal lattice for the sp2 as well as for the sp3 configuration)
occur in such materials, as well as deviations in the bond angles because of the presence
of dangling bonds. the above description of amorphous carbon is not applicable to
carbon materials with two-dimensional structural elements present in all pyrolysis
residues of carbon compounds as polyaromatic layers with a nearly ideal interatomic
distance of a142pmand an extension greater than 1000pm.;
Origin ID : A00294;
Automatic exact mappings (from CISMeF team)
- See also
A carbon material without long-range crystalline order. Short-range order exists,
but with deviations of the interatomic distances and/or interbonding angles with respect
to the graphite lattice as well as to the diamond lattice.
