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half thickness in radiochemistryhalf-life, τ 1/2, of a transient entity

half-chair

The conformation of a six-membered ring structure in which four contiguous atoms are in a plane and the other two atoms lie on opposite sides of the plane.
H02715
See also: chair, boat, twist
Source:
PAC, 1996, 68, 2193 (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2209
InChI=1/C6H10/c1-2-4-6-5-3-1/h1-2H,3-6H2
HGCIXCUEYOPUTN-UHFFFAOYAQ
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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). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2012-08-19; version: 2.3.2.
DOI of this term: doi:10.1351/goldbook.H02715.
Original PDF version: http://www.iupac.org/goldbook/H02715.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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