rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)

The racemic title compound, C54H38O2, consists of two C-linked pentaleno[1,2,3-ij]naphthalenone moieties, the crowded aryl ring substitution on the cyclopentane rings forcing the two segments to assume a conformation which has pseudo-twofold rotational symmetry, with a dihedral angle between the nap...

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Main Authors: Junwei Ye, Weitao Gong, Yuan Lin, Guiling Ning, Xiangdong Zhang
Format: Article
Language:English
Published: International Union of Crystallography 2012-05-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536812014146
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author Junwei Ye
Weitao Gong
Yuan Lin
Guiling Ning
Xiangdong Zhang
author_facet Junwei Ye
Weitao Gong
Yuan Lin
Guiling Ning
Xiangdong Zhang
author_sort Junwei Ye
collection DOAJ
description The racemic title compound, C54H38O2, consists of two C-linked pentaleno[1,2,3-ij]naphthalenone moieties, the crowded aryl ring substitution on the cyclopentane rings forcing the two segments to assume a conformation which has pseudo-twofold rotational symmetry, with a dihedral angle between the naphthalene substituent groups of 55.30 (8)°. In each segment, the two phenyl rings have different conformational orientations, with inter-ring dihedral angles of 34.7 (2) and 49.63 (16)°. Each cyclopentane ring has the same relative configuration in its four chiral centres and together with the fused naphthalene ring assumes an overall chair-like conformation.
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spelling doaj.art-5c9f190eb41246cfb2b20e572571dfc12022-12-21T19:41:40ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682012-05-01685o1329o132910.1107/S1600536812014146rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)Junwei YeWeitao GongYuan LinGuiling NingXiangdong ZhangThe racemic title compound, C54H38O2, consists of two C-linked pentaleno[1,2,3-ij]naphthalenone moieties, the crowded aryl ring substitution on the cyclopentane rings forcing the two segments to assume a conformation which has pseudo-twofold rotational symmetry, with a dihedral angle between the naphthalene substituent groups of 55.30 (8)°. In each segment, the two phenyl rings have different conformational orientations, with inter-ring dihedral angles of 34.7 (2) and 49.63 (16)°. Each cyclopentane ring has the same relative configuration in its four chiral centres and together with the fused naphthalene ring assumes an overall chair-like conformation.http://scripts.iucr.org/cgi-bin/paper?S1600536812014146
spellingShingle Junwei Ye
Weitao Gong
Yuan Lin
Guiling Ning
Xiangdong Zhang
rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
Acta Crystallographica Section E
title rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
title_full rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
title_fullStr rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
title_full_unstemmed rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
title_short rac-7,7′,9,9′-Tetraphenyl-9a,9a′-bi(7,8,9,9a-tetrahydro-6aH-pentaleno[1,2,3-ij]naphthalen-8-one)
title_sort rac 7 7 amp 8242 9 9 amp 8242 tetraphenyl 9a 9a amp 8242 bi 7 8 9 9a tetrahydro 6ah pentaleno 1 2 3 ij naphthalen 8 one
url http://scripts.iucr.org/cgi-bin/paper?S1600536812014146
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