allotrope
Noun
Meaning
a structurally different form of an element
Source: WordNetSynonyms
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Examples
graphite and diamond are allotropes of carbon
Above this temperature and in ambient light, this metastable allotrope transforms into the more stable black allotrope.
Although many other chemists have repeated this advice, IUPAC and most chemistry texts still favour the usage of allotrope and allotropy for elements only.
Characteristics Properties A vial containing the black allotrope of antimony Native antimony with oxidation products Crystal structure common to Sb, AsSb and gray As Antimony is in the nitrogen group (group 15) and has an electronegativity of 2.05.
It has two main allotropes : at room temperature, the stable allotrope is β-tin, a silvery-white, malleable metal, but at low temperatures it transforms into the less dense grey α-tin, which has the diamond cubic structure.
One of his designs of a geodesic dome structure bears great resemblance to C 60 ; as a result, the discoverers of the allotrope named the newfound molecule after him.