trans-

in inorganic nomenclature
https://doi.org/10.1351/goldbook.T06433
A prefix designating two groups directly across a @[email protected] from each other, i.e. in the polar positions on a sphere, not now generally recommended for precise nomenclature purposes.
Source:
Red Book, 3rd ed., p. 245 [Terms] [Book]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014