Preparation and Solid-State Structural, Electronic, and Magnetic Properties of the 1,3,5-Benzene-Bridged Tris(1,2,3,5-dithiadiazolyl) [1,3,5-C6H3(CN2S2)3]

A. W. Cordes, R. C. Haddon, R. G. Hicks, R. T. Oakley, T. T.M. Palstra, L. F. Schneemeyer, J. V. Waszczak

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Abstract

The preparation and solid-state characterization of the trifunctional radical 1,3,5-benzenetris(1,2,3,5-dithiadiazolyl) [4,4′,4″-(1,3,5-benzenetriyl)tris[1,2,3,5-dithiadiazolyl], 1,3,5-C6H3(CN2S2)3] are described. The crystals belong to the monoclinic space group P21/c, with a = 6.927 (2), b = 19.798 (3), c = 19.393 (3), and β = 99.80 (2) Å3. The crystal structure consists of stacks of triradicals running parallel to x. Each radical center associates with a neighboring radical, generating alternating long (mean 3.832 Å) and short (mean 3.117 Å) interradical S···S contacts along the stack; only two of the three crystallographically distinct bond alternation waves so generated are in-phase. The packing of triradical stacks produces an extensive network of close interstack S···S contacts. The compound is diamagnetic at room temperature, but paramagnetic defects begin to appear near 450 K. The room-temperature single-crystal conductivity is near 10-7 S cm-1. Extended Hückel band structure calculations reveal a band gap of 0.8 eV.

Original languageEnglish
Pages (from-to)5000-5004
Number of pages5
JournalJournal of the American Chemical Society
Volume114
Issue number13
DOIs
StatePublished - 1 Jun 1992

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Benzene
Electronic properties
Structural properties
Magnetic properties
Temperature
Band structure
Energy gap
Crystal structure
Single crystals
Defects
Crystals

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Cordes, A. W. ; Haddon, R. C. ; Hicks, R. G. ; Oakley, R. T. ; Palstra, T. T.M. ; Schneemeyer, L. F. ; Waszczak, J. V. / Preparation and Solid-State Structural, Electronic, and Magnetic Properties of the 1,3,5-Benzene-Bridged Tris(1,2,3,5-dithiadiazolyl) [1,3,5-C6H3(CN2S2)3]. In: Journal of the American Chemical Society. 1992 ; Vol. 114, No. 13. pp. 5000-5004.
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title = "Preparation and Solid-State Structural, Electronic, and Magnetic Properties of the 1,3,5-Benzene-Bridged Tris(1,2,3,5-dithiadiazolyl) [1,3,5-C6H3(CN2S2)3]",
abstract = "The preparation and solid-state characterization of the trifunctional radical 1,3,5-benzenetris(1,2,3,5-dithiadiazolyl) [4,4′,4″-(1,3,5-benzenetriyl)tris[1,2,3,5-dithiadiazolyl], 1,3,5-C6H3(CN2S2)3] are described. The crystals belong to the monoclinic space group P21/c, with a = 6.927 (2), b = 19.798 (3), c = 19.393 (3), and β = 99.80 (2) {\AA}3. The crystal structure consists of stacks of triradicals running parallel to x. Each radical center associates with a neighboring radical, generating alternating long (mean 3.832 {\AA}) and short (mean 3.117 {\AA}) interradical S···S contacts along the stack; only two of the three crystallographically distinct bond alternation waves so generated are in-phase. The packing of triradical stacks produces an extensive network of close interstack S···S contacts. The compound is diamagnetic at room temperature, but paramagnetic defects begin to appear near 450 K. The room-temperature single-crystal conductivity is near 10-7 S cm-1. Extended H{\"u}ckel band structure calculations reveal a band gap of 0.8 eV.",
author = "Cordes, {A. W.} and Haddon, {R. C.} and Hicks, {R. G.} and Oakley, {R. T.} and Palstra, {T. T.M.} and Schneemeyer, {L. F.} and Waszczak, {J. V.}",
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Preparation and Solid-State Structural, Electronic, and Magnetic Properties of the 1,3,5-Benzene-Bridged Tris(1,2,3,5-dithiadiazolyl) [1,3,5-C6H3(CN2S2)3]. / Cordes, A. W.; Haddon, R. C.; Hicks, R. G.; Oakley, R. T.; Palstra, T. T.M.; Schneemeyer, L. F.; Waszczak, J. V.

In: Journal of the American Chemical Society, Vol. 114, No. 13, 01.06.1992, p. 5000-5004.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preparation and Solid-State Structural, Electronic, and Magnetic Properties of the 1,3,5-Benzene-Bridged Tris(1,2,3,5-dithiadiazolyl) [1,3,5-C6H3(CN2S2)3]

AU - Cordes, A. W.

AU - Haddon, R. C.

AU - Hicks, R. G.

AU - Oakley, R. T.

AU - Palstra, T. T.M.

AU - Schneemeyer, L. F.

AU - Waszczak, J. V.

PY - 1992/6/1

Y1 - 1992/6/1

N2 - The preparation and solid-state characterization of the trifunctional radical 1,3,5-benzenetris(1,2,3,5-dithiadiazolyl) [4,4′,4″-(1,3,5-benzenetriyl)tris[1,2,3,5-dithiadiazolyl], 1,3,5-C6H3(CN2S2)3] are described. The crystals belong to the monoclinic space group P21/c, with a = 6.927 (2), b = 19.798 (3), c = 19.393 (3), and β = 99.80 (2) Å3. The crystal structure consists of stacks of triradicals running parallel to x. Each radical center associates with a neighboring radical, generating alternating long (mean 3.832 Å) and short (mean 3.117 Å) interradical S···S contacts along the stack; only two of the three crystallographically distinct bond alternation waves so generated are in-phase. The packing of triradical stacks produces an extensive network of close interstack S···S contacts. The compound is diamagnetic at room temperature, but paramagnetic defects begin to appear near 450 K. The room-temperature single-crystal conductivity is near 10-7 S cm-1. Extended Hückel band structure calculations reveal a band gap of 0.8 eV.

AB - The preparation and solid-state characterization of the trifunctional radical 1,3,5-benzenetris(1,2,3,5-dithiadiazolyl) [4,4′,4″-(1,3,5-benzenetriyl)tris[1,2,3,5-dithiadiazolyl], 1,3,5-C6H3(CN2S2)3] are described. The crystals belong to the monoclinic space group P21/c, with a = 6.927 (2), b = 19.798 (3), c = 19.393 (3), and β = 99.80 (2) Å3. The crystal structure consists of stacks of triradicals running parallel to x. Each radical center associates with a neighboring radical, generating alternating long (mean 3.832 Å) and short (mean 3.117 Å) interradical S···S contacts along the stack; only two of the three crystallographically distinct bond alternation waves so generated are in-phase. The packing of triradical stacks produces an extensive network of close interstack S···S contacts. The compound is diamagnetic at room temperature, but paramagnetic defects begin to appear near 450 K. The room-temperature single-crystal conductivity is near 10-7 S cm-1. Extended Hückel band structure calculations reveal a band gap of 0.8 eV.

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U2 - 10.1021/ja00039a008

DO - 10.1021/ja00039a008

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AN - SCOPUS:0000243843

VL - 114

SP - 5000

EP - 5004

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

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