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Crystal structure analysis of some mesogenic cyanoazines

Published/Copyright: July 28, 2010
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Zeitschrift für Kristallographie - Crystalline Materials
From the journal Zeitschrift für Kristallographie - Crystalline Materials Volume 211 Issue 1

Abstract

The crystal structure analysis of the following three mesogenic cyanoazines is reported: 4-methoxybenzaldehyde-(4-cyanobenzylidene)hydrazone (E, E) (azine 1), 4-methoxyacetophenone-(4-cyanobenzylidene)hydrazone (E, E) (azine 2), 4-methoxybenzaldehyde-[4-cyanophenyl)-ethylidene]hydrazone (E, E) (azine 3). These azines are simple models of monomeric precursors for the synthesis of comb-like polymers with potential nonlinear optical properties of the second order. The crystal structures have been determined at room temperature by direct methods and refined by full matrix least squares method. Some differences in the solid state conformation of the azines are found as a result of the introduction of a methyl group onto the azine system. The relation between molecular conformation and mesogenic behavior of the three azines is also discussed.

Published Online: 2010-7-28
Published in Print: 1996-1-1

© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München

Articles in the same Issue

  1. Two 3-periodic self-intersecting minimal surfaces related to the Cr3Si structure type
  2. Die Kristallstrukturen der Verbindungen La2Ge3O9 und Ce2Ge3O9 und ihre strukturelle Verwandtschaft zum Törnebohmit-Typ RE2Al(SiO4)2(OH)
  3. Neutron powder diffraction on monoclinic Li2CrCl4
  4. Rietveld structure refinement of synthetic magnesium substituted β-tricalcium phosphate
  5. The crystal structure of the ternary alloy c-Al68Pd20Ru12
  6. Short Cr3+ –Cr3+ distances in magnetoplumbite type SrCr9Ga3O19
  7. Crystal structure analysis of some mesogenic cyanoazines
  8. The structure of ergot alkaloid hydroxyergotamine
  9. Crystal and molecular structure of sodium dodecyl(oxyethylene)sulfate hydrate
  10. Crystal structure of trimethylammonium tribromostannate(II), (CH3)3NHSnBr3
  11. Crystal structure of dimethylammonium tribromostannate(II), (CH3)2NH2SnBr3
  12. Crystal structure of dimethylammonium triiodostannate(II), (CH3)2NH2SnI3
  13. Crystal structure of thallium triindium pentasulfide, TlIn3S5
  14. Crystal structure of thallium pentaindium octasulfide, TlIn5S8
  15. Crystal structures of thallium pentaindium heptasulfide, TlIn5S7 and thallium pentaindium heptaselenide, TlIn5Se7
  16. Crystal structure of hexabarium di-μ-phosphido-bis(diphosphidogallate(III)), Ba6[Ga2P6]
  17. Crystal structure of lithium tetrastrontium tris(dinitridoborate), LiSr4(BN2)3
  18. Crystal structure of 5,13,20,28-tetraazoniaheptacyclo-[26.2.2.22,5.213,16.217,20.17,11.122,26]tetraconta-2,4,7,9,11(38),13,15,17,19,22,24,26(33),28,30,31,34,35,39-octadecaen tetrakis(fluoroborate) monohydrate, (C36H32N4)(BF4)4(H2O)
  19. Crystal structure of 1,3-diethyl-4,5dimethyl-imidazolium disulfate, (C2H5)4(CH3)4(C3N2H)2(S2O7)
  20. Crystal structure of [η2-bis(trimethylsilyl)acetylene][η2-bis(di-tert-butylphosphino)methane]nickel(0), ((CH3)3Si)2C2((C4H9)2P)2CH2Ni
  21. Crystal structure of cis-chloromethyl[η2-bis(di-tert-butylphosphino)-methane]nickel(II), ((C4H9)2P)2CH2NiCH3Cl
  22. Crystal structure of dicarbonyl[η2-bis(di-tert-butylphosphino)-methane]nickel(0), ((C4H9)2P)2CH2Ni(CO)2
  23. Crystal structure of di-μ-chloro-bis(η4-norbornadienerhodium), (C7H8Rh)2Cl2
  24. Crystal structure of 5,5′-dimethoxy-3,3′-diphenyl-6,6′-bi-1,2,4-triazine, (NNCCNC)(NNCNCC)(C6H5)2(OCH3)2
  25. Crystal structure of 1-aminopyrazole-3-diethylcarboxamide, NNCHCHC(NH2)CON(CH2CH3)2
  26. Crystal structure of 1-[(2-bromo-3-quinolinyl)methyl]-3-methoxycarbonylpyridinium bromide methanol, C17H14N2O2Br2 (CH3OH)
  27. Crystal structure of taondiolmonoacetate, C29H42O4
https://doi.org/10.1524/zkri.1996.211.1.31

Articles in the same Issue

  1. Two 3-periodic self-intersecting minimal surfaces related to the Cr3Si structure type
  2. Die Kristallstrukturen der Verbindungen La2Ge3O9 und Ce2Ge3O9 und ihre strukturelle Verwandtschaft zum Törnebohmit-Typ RE2Al(SiO4)2(OH)
  3. Neutron powder diffraction on monoclinic Li2CrCl4
  4. Rietveld structure refinement of synthetic magnesium substituted β-tricalcium phosphate
  5. The crystal structure of the ternary alloy c-Al68Pd20Ru12
  6. Short Cr3+ –Cr3+ distances in magnetoplumbite type SrCr9Ga3O19
  7. Crystal structure analysis of some mesogenic cyanoazines
  8. The structure of ergot alkaloid hydroxyergotamine
  9. Crystal and molecular structure of sodium dodecyl(oxyethylene)sulfate hydrate
  10. Crystal structure of trimethylammonium tribromostannate(II), (CH3)3NHSnBr3
  11. Crystal structure of dimethylammonium tribromostannate(II), (CH3)2NH2SnBr3
  12. Crystal structure of dimethylammonium triiodostannate(II), (CH3)2NH2SnI3
  13. Crystal structure of thallium triindium pentasulfide, TlIn3S5
  14. Crystal structure of thallium pentaindium octasulfide, TlIn5S8
  15. Crystal structures of thallium pentaindium heptasulfide, TlIn5S7 and thallium pentaindium heptaselenide, TlIn5Se7
  16. Crystal structure of hexabarium di-μ-phosphido-bis(diphosphidogallate(III)), Ba6[Ga2P6]
  17. Crystal structure of lithium tetrastrontium tris(dinitridoborate), LiSr4(BN2)3
  18. Crystal structure of 5,13,20,28-tetraazoniaheptacyclo-[26.2.2.22,5.213,16.217,20.17,11.122,26]tetraconta-2,4,7,9,11(38),13,15,17,19,22,24,26(33),28,30,31,34,35,39-octadecaen tetrakis(fluoroborate) monohydrate, (C36H32N4)(BF4)4(H2O)
  19. Crystal structure of 1,3-diethyl-4,5dimethyl-imidazolium disulfate, (C2H5)4(CH3)4(C3N2H)2(S2O7)
  20. Crystal structure of [η2-bis(trimethylsilyl)acetylene][η2-bis(di-tert-butylphosphino)methane]nickel(0), ((CH3)3Si)2C2((C4H9)2P)2CH2Ni
  21. Crystal structure of cis-chloromethyl[η2-bis(di-tert-butylphosphino)-methane]nickel(II), ((C4H9)2P)2CH2NiCH3Cl
  22. Crystal structure of dicarbonyl[η2-bis(di-tert-butylphosphino)-methane]nickel(0), ((C4H9)2P)2CH2Ni(CO)2
  23. Crystal structure of di-μ-chloro-bis(η4-norbornadienerhodium), (C7H8Rh)2Cl2
  24. Crystal structure of 5,5′-dimethoxy-3,3′-diphenyl-6,6′-bi-1,2,4-triazine, (NNCCNC)(NNCNCC)(C6H5)2(OCH3)2
  25. Crystal structure of 1-aminopyrazole-3-diethylcarboxamide, NNCHCHC(NH2)CON(CH2CH3)2
  26. Crystal structure of 1-[(2-bromo-3-quinolinyl)methyl]-3-methoxycarbonylpyridinium bromide methanol, C17H14N2O2Br2 (CH3OH)
  27. Crystal structure of taondiolmonoacetate, C29H42O4
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