Crystal structures of two 1,2-bis-(1-aryl-3-methyltriazene-3-yl-)ethanes with aryl substituents of opposite polarity

Ian R. Pottie, C. V.Krishnamohan Sharma, Keith Vaughan, Michael J. Zaworotko

Research output: Contribution to journalArticlepeer-review

Abstract

The crystal and molecular structure of 1,2-bis-{1-(2-cyanophenyl)-3-methyltriazen-3-yl-}ethane (1) and 1,2-bis-{1-(2-methoxyphenyl)-3-methyltriazen-3-yl-}ethane (2) have been determined by single crystal X-ray diffraction analysis. Bis-triazene (1) exists as the "staggered" conformation in the solid state, with an anti-anti configuration around the N2-N3 bond of the triazene units, whereas 2 assumes a "gauche" conformation with the syn-syn configuration in the triazene units. Crystal data: 1 C18H18N8, triclinic, space group P - 1, a = 6.108(2), b = 8.118(3), c = 9.600(4)Å, α = 101.37(7)°, β = 96.47(7)°, γ = 102.71(5)°, V = 449.1(3)Å3, Z = 2; 2 C18H24N6O2, monoclinic, space group P 21/n, a = 13.119(5), b = 7.745(2), c = 19.201(2)Å, β = 96.47(7)°, V = 1910.3(9)Å3, Z = 4.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalJournal of Chemical Crystallography
Volume28
Issue number1
DOIs
Publication statusPublished - Jan 1998
Externally publishedYes

Keywords

  • Bis-triazene
  • Crystal structure
  • Hydrogen bonding
  • Methoxy substituent
  • Nitrile substituent
  • Triazene

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