论文信息 - 1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium bis(trifluoromethanesulfonate)

1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium bis(trifluoromethanesulfonate)

In the solid form of the title imidazolium-based ionic liquid salt, C18H24N4 2+·2CF3SO3 −, the complete cation is generated by a crystallographic inversion centre. The five-membered imidazole ring is approximately perpendicular to the six-membered phenylene ring [dihedral angle = 85.11 (11)°]. In the crystal, the components are linked by C—H⋯O interactions.

[1] Seik Weng Ng,et al. 1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium dibromide , 2009, Acta crystallographica. Section E, Structure reports online.

[2] Simon P. Westrip,et al. publCIF: software for editing, validating and formatting crystallographic information files , 2010 .

[3] Leonard J. Barbour,et al. X-Seed — A Software Tool for Supramolecular Crystallography , 2001 .

[4] S. Ng,,et al. 1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium bis(hexafluoridophosphate) , 2009, Acta crystallographica. Section E, Structure reports online.

[5] S. Ng,,et al. Imidazolium-based ionic liquid salts: 3,3'-dimethyl-1,1'-(1,4-phenylenedimethylene)diimidazolium bis(tetrafluoroborate) and 3,3'-di-n-butyl-1,1'-(1,4-phenylenedimethylene)diimidazolium bis(trifluoromethanesulfonate). , 2008, Acta Crystallographica Section C: Crystal Structure Communications.

[6] G. G. Stokes. "J." , 1890, The New Yale Book of Quotations.

[7] 良二上田. J. Appl. Cryst.の発刊に際して , 1970 .

[8] G. Sheldrick. A short history of SHELX. , 2008, Acta crystallographica. Section A, Foundations of crystallography.

[9] Seik Weng Ng,et al. 1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium bis(tetrafluoridoborate) , 2009, Acta crystallographica. Section E, Structure reports online.