1-(2-Hydroxyethyl)-4-{3-[(E)-2-(trifluoromethyl)-9H-thioxanthen-9-ylidene]propyl}piperazine-1,4-diium bis(3-carboxyprop-2-enoate)


Siddegowda M. S. , Butcher R. J. , AKKURT M. , Yathirajan H. S. , Ramesh A. R.

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, cilt.67, 2011 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 67
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1107/s160053681102722x
  • Dergi Adı: ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE

Özet

In the title salt, C23H27F3N2OS+center dot 2C(4)H(3)O(4)(-), a non-merohedral twin [ratio of the twin components = 0.402 (1):0.598 (1)], the -CF3 group is disordered over two sets of sites with occupancy factors in the ratio 0.873 (2):0.127 (2). The dihedral angle between the two outer aromatic rings of the 9H-thioxanthene unit, whose thiopyran ring has a screw-boat conformation, is 33.01 (9)degrees. The diprotonated piperazine ring adopts a chair conformation. In the crystal, intermolecular O-H center dot center dot center dot O, N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds between neighboring molecules form zigzag chains along the a axis and contribute to the stabilization of the packing.