Abstract
Two nearly isostructural pseudopolymorphic forms of pyrimethaminium terephthalate have been synthesized and their supramolecular architectures analyzed. In both the crystals, the protonated pyrimethamine (PMN) cation interacts with the carboxylate anion via N–H···O hydrogen bonds to form the robust R 22 (8) motif. The centrosymmetrically (N–H···N) paired PMN cations are bridged on either sides by interaction of the solvent molecules with the amino groups (N–H···O) of PMN cations. The combination of two R 22 (8) motifs formed between the PMN cations and PMN cation solvent, leads to the formation of the complementary DADA (D = hydrogen bonded donor, A = hydrogen bonded acceptor) array of quadruple hydrogen bonds. The solvent molecule further interacts with the corresponding anion via O–H···O hydrogen bonds. Moreover, both the solvates exhibit several edge to face stacking interactions. They have in common, two C–H···π interactions; one between the symmetry related cations and other between the cation and anion. The molecular packing of the ethanol solvate is further strengthened by C–H···O and C–H···π interaction between the solvent and the ions.
Graphical Abstract
Isomorphous supramolecular architectures in the crystal structures of pyrimethaminium terephthalate solvates.
Similar content being viewed by others
References
Nangia A, Desiraju GR (1999) Chem Commun 7:605
Desiraju GR (2007) Angew Chem Int Ed Engl 46:8342
Erk P, Hengelsberg H, Haddow MF, Gelder RV (2004) Cryst Eng Comm 6:474
Sethuraman V, Muthiah PT (2002) Acta Cryst E 58:o817
Stanley N, Sethuraman V, Muthiah PT, Luger P, Weber M (2002) Cryst Growth Des 2:631
Sethuraman V, Stanley N, Muthiah PT, Sheldrick WS, Winter M, Luger P, Weber M (2003) Cryst Growth Des 3:823
Balasubramani K, Muthiah PT, Lynch DE (2007) Chem Cent J 1:28
Subashini A, Muthiah PT, Bocelli G, Cantoni A (2007) Acta Cryst E 63:o3775
Balasubramani K, Muthiah PT (2008) Anal Sci X-ray Struct AnalOnline. 24:x251
Thanigaimani K, Muthiah PT (2010) Acta Cryst C 66:o104
Barnett SA, Tocher DA, Vickers M (2006) Cryst Eng Comm 8:313
Goldring D, Botoshansky M, Khalfin RL, Pertsikov B, Nisnevitch G, Ponomarev V, Zaltzman I, Gutman A, Kaftory M (2004) Acta Cryst C 60:o843
Smith G, Wermuth UD, Healy PC, White JM (2006) Acta Cryst C 62:o203
Smith G, Wermuth UD, White JM (2007) Acta Cryst C 63:o489
Hosokawa T, Datta S, Sheth AR, Brooks NR, Young VG, Grant DJW (2004) Cryst Growth Des 4:1195
Aitipamula S, Chow PS, Tan RBH (2010) Cryst Growth Des 10:2229
Bruker (2008) APEX2, SAINT, SADABS. Bruker AXS Inc., Madison
Bruker (2004) APEX2, SAINT, SADABS. Bruker AXS Inc., Madison
Sheldrick GM (2008) Acta Cryst A 64:112
Spek AL (2003) J Appl Cryst 36:7
Jin ZM, Ma LL, Wei WX, Li WZ (2009) J Struct Chem 50:185
Bugge KE, Verboom W, Reinhoudt DN, Harkema S (1992) Acta Cryst C 48:1848
Cody V (1983) Cancer Biochem Biophys 6:173
De A, Basak AK, Roychowdhury P (1989) Indian J Phys A 63:553
Sansom CE, Schwalbe CH, Lambert PA, Griffin RJ, Stevens MFG (1989) Biochim Biophys Acta 995:21
Etter MC (1990) Acc Chem Res 23:120
Bernstein J, Davis RE, Shimoni L, Chang NL (1995) Angew Chem Int Ed Engl 34:1555
Lynch DE, Jones GD (2004) Acta Cryst B 60:748
Allen FH, Raithby, PR, Shields GP, Taylor R (1998) Chem Commun 1043
Nirmalram JS, Muthiah PT (2010) Acta Cryst E 66:o2121
Panneerselvam P, Stanley N, Muthiah PT (2002) Acta Cryst E 58:o180
Acknowledgments
JSN thanks the UGC-SAP, India, for the award of RFSMS. The authors thank the D.S.T-India (F.I.S.T programme) for the use of Bruker SMART APEX II diffractometer at the School of Chemistry, Bharathidasan University. Tiruchirappalli, Tamilnadu, India.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Devi, P., Nirmalram, J.S. & Muthiah, P.T. Near Supramolecular Isomorphism Involving Homologous Solvents: Pyrimethaminium Terephthalate Methanol Solvate and Pyrimethaminium Terephthalate Ethanol Solvate. J Chem Crystallogr 41, 1624–1629 (2011). https://doi.org/10.1007/s10870-011-0150-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10870-011-0150-3