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early-downhill surfaceeclipsing conformation
eclipsed (eclipsing)
Two atoms or groups attached to adjacent atoms are said to be eclipsed if the torsion angle between the three bonds is zero (or approximately so).
See: bisecting conformation, eclipsing strain
Source:
PAC, 1996, 68, 2193 (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2206
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Cite as: IUPAC Compendium of Chemical Terminology, Electronic version, http://goldbook.iupac.org/E01884.html.
Transformed and rewritten from PDF version (entry http://www.iupac.org/goldbook/E01884.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic
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