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- W2123134916 endingPage "10323" @default.
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- W2123134916 abstract "Abstract A trans isomer of a figure‐of‐eight (Fo8) compound was prepared from an electron‐withdrawing cyclobis(paraquat‐ p ‐phenylene) derivative carrying trans ‐disposed azide functions between its two phenylene rings. Copper(I)‐catalyzed azide–alkyne cycloadditions with a bispropargyl derivative of a polyether chain, interrupted in its midriff by an electron‐donating 1,5‐dioxynaphthalene unit acting as the template to organize the reactants prior to the onset of two click reactions, afforded the Fo8 compound with C i symmetry. Exactly the same chemistry is performed on the cis ‐bisazide of the tetracationic cyclophane to give a Fo8 compound with C 2 symmetry. Both of these Fo8 compounds exist as major and very minor conformational isomers in solution. The major conformation in the trans series, which has been characterized by X‐ray crystallography, adopts a geometry which maximizes its CH⋅⋅⋅O interactions, while maintaining its π⋅⋅⋅π stacking and CH⋅⋅⋅π interactions. Ab initio calculations at the M06L level support the conformational assignments to the major and minor isomers in the trans series. Dynamic 1 H NMR spectroscopy, supported by 2D 1 H NMR experiments, indicates that the major and minor isomers in both the cis and trans series equilibrate in solution on the 1 H NMR timescale rapidly above and slowly below room temperature." @default.
- W2123134916 created "2016-06-24" @default.
- W2123134916 creator A5019615586 @default.
- W2123134916 creator A5030442542 @default.
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- W2123134916 creator A5045936532 @default.
- W2123134916 creator A5058854235 @default.
- W2123134916 creator A5058868389 @default.
- W2123134916 creator A5062910736 @default.
- W2123134916 creator A5070964684 @default.
- W2123134916 creator A5089719740 @default.
- W2123134916 date "2012-07-26" @default.
- W2123134916 modified "2023-10-17" @default.
- W2123134916 title "Stereochemistry of Molecular Figures-of-Eight" @default.
- W2123134916 cites W1479911017 @default.
- W2123134916 cites W1964000563 @default.
- W2123134916 cites W1966679473 @default.
- W2123134916 cites W1968652549 @default.
- W2123134916 cites W1970551034 @default.
- W2123134916 cites W1971668380 @default.
- W2123134916 cites W1973197297 @default.
- W2123134916 cites W1975259432 @default.
- W2123134916 cites W1975406617 @default.
- W2123134916 cites W1978849148 @default.
- W2123134916 cites W1985852359 @default.
- W2123134916 cites W1986953992 @default.
- W2123134916 cites W1988502687 @default.
- W2123134916 cites W1990348155 @default.
- W2123134916 cites W1992124030 @default.
- W2123134916 cites W1995163963 @default.
- W2123134916 cites W1996711278 @default.
- W2123134916 cites W1997158083 @default.
- W2123134916 cites W1997195139 @default.
- W2123134916 cites W1997680671 @default.
- W2123134916 cites W1998651457 @default.
- W2123134916 cites W1999352245 @default.
- W2123134916 cites W2000989371 @default.
- W2123134916 cites W2001904302 @default.
- W2123134916 cites W2004943884 @default.
- W2123134916 cites W2005914546 @default.
- W2123134916 cites W2007415730 @default.
- W2123134916 cites W2007526433 @default.
- W2123134916 cites W2007639251 @default.
- W2123134916 cites W2007643749 @default.
- W2123134916 cites W2009068495 @default.
- W2123134916 cites W2009103043 @default.
- W2123134916 cites W2019626206 @default.
- W2123134916 cites W2023150968 @default.
- W2123134916 cites W2024021131 @default.
- W2123134916 cites W2025783141 @default.
- W2123134916 cites W2026400340 @default.
- W2123134916 cites W2028170271 @default.
- W2123134916 cites W2030302183 @default.
- W2123134916 cites W2031880980 @default.
- W2123134916 cites W2037719860 @default.
- W2123134916 cites W2037755347 @default.
- W2123134916 cites W2038821178 @default.
- W2123134916 cites W2042239753 @default.
- W2123134916 cites W2042801131 @default.
- W2123134916 cites W2044158408 @default.
- W2123134916 cites W2050711424 @default.
- W2123134916 cites W2050896147 @default.
- W2123134916 cites W2053331124 @default.
- W2123134916 cites W2057241543 @default.
- W2123134916 cites W2077375276 @default.
- W2123134916 cites W2079003828 @default.
- W2123134916 cites W2081631950 @default.
- W2123134916 cites W2085457334 @default.
- W2123134916 cites W2085823629 @default.
- W2123134916 cites W2087364601 @default.
- W2123134916 cites W2089921714 @default.
- W2123134916 cites W2090284894 @default.
- W2123134916 cites W2092842745 @default.
- W2123134916 cites W2097029580 @default.
- W2123134916 cites W2104569666 @default.
- W2123134916 cites W2104784856 @default.
- W2123134916 cites W2110482579 @default.
- W2123134916 cites W2110976832 @default.
- W2123134916 cites W2112307412 @default.
- W2123134916 cites W2117755495 @default.
- W2123134916 cites W2121300814 @default.
- W2123134916 cites W2122992850 @default.
- W2123134916 cites W2124759739 @default.
- W2123134916 cites W2126428359 @default.
- W2123134916 cites W2128765658 @default.
- W2123134916 cites W2131051965 @default.
- W2123134916 cites W2131350133 @default.
- W2123134916 cites W2132290345 @default.
- W2123134916 cites W2136155687 @default.
- W2123134916 cites W2143201732 @default.
- W2123134916 cites W2149021905 @default.
- W2123134916 cites W2152455696 @default.
- W2123134916 cites W2153994847 @default.
- W2123134916 cites W2162531617 @default.
- W2123134916 cites W2163172845 @default.
- W2123134916 cites W2167422539 @default.
- W2123134916 cites W2168360185 @default.
- W2123134916 cites W2329436674 @default.