5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one

The title molecule, C4OS5, is essentially planar, with an r.m.s. deviation of 0.032 (3) Å. All the C—S single bonds are shorter than the standard Csp3—S single-bond length, showing the π-conjugated nature of the molecu...

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Main Authors: Qi Fang, Ao Li, Li-Xia Fan, Li Liu, Hua-Wen Wen
Format: Article
Language:English
Published: International Union of Crystallography 2012-03-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536812005703
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author Qi Fang
Ao Li
Li-Xia Fan
Li Liu
Hua-Wen Wen
author_facet Qi Fang
Ao Li
Li-Xia Fan
Li Liu
Hua-Wen Wen
author_sort Qi Fang
collection DOAJ
description The title molecule, C4OS5, is essentially planar, with an r.m.s. deviation of 0.032 (3) Å. All the C—S single bonds are shorter than the standard Csp3—S single-bond length, showing the π-conjugated nature of the molecule. In the crystal, molecules lie parallel to one another and pack in columns along the a axis. Short intermolecular S...S contacts [3.314 (3), 3.482 (2) and 3.501 (2) Å] are observed between the columns. The angle between the two molecular dipole moments in the unit cell is 39.3 (1)° and the macro-polarization vector is along the [1 0 − 1.41] direction. As a result of the high polarization and π-conjugation of the structure, the crystalline powder exhibits a second harmonic generating intensity, which is as strong as that of the urea standard powder crystals, when irradiated by a 1053 nm laser beam. The diffraction space of the crystal showed a nonmerohedral twinning.
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spelling doaj.art-ae53c67ec696480dacfc61b84c9e0e9b2022-12-21T19:42:33ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682012-03-01683o721o72110.1107/S16005368120057035-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-oneQi FangAo LiLi-Xia FanLi LiuHua-Wen WenThe title molecule, C4OS5, is essentially planar, with an r.m.s. deviation of 0.032 (3) Å. All the C—S single bonds are shorter than the standard Csp3—S single-bond length, showing the π-conjugated nature of the molecule. In the crystal, molecules lie parallel to one another and pack in columns along the a axis. Short intermolecular S...S contacts [3.314 (3), 3.482 (2) and 3.501 (2) Å] are observed between the columns. The angle between the two molecular dipole moments in the unit cell is 39.3 (1)° and the macro-polarization vector is along the [1 0 − 1.41] direction. As a result of the high polarization and π-conjugation of the structure, the crystalline powder exhibits a second harmonic generating intensity, which is as strong as that of the urea standard powder crystals, when irradiated by a 1053 nm laser beam. The diffraction space of the crystal showed a nonmerohedral twinning.http://scripts.iucr.org/cgi-bin/paper?S1600536812005703
spellingShingle Qi Fang
Ao Li
Li-Xia Fan
Li Liu
Hua-Wen Wen
5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
Acta Crystallographica Section E
title 5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
title_full 5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
title_fullStr 5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
title_full_unstemmed 5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
title_short 5-Sulfanylidene-2H,5H-1,3-dithiolo[4,5-d][1,3]dithiol-2-one
title_sort 5 sulfanylidene 2h 5h 1 3 dithiolo 4 5 d 1 3 dithiol 2 one
url http://scripts.iucr.org/cgi-bin/paper?S1600536812005703
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