Hydrogen-bonded sheets in the 1:1 salt of tet-b and trimesic acid

C J Burchell, G Ferguson, A J Lough, C Glidewell

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6 Citations (Scopus)


Tet-b (racemic 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane, C16H36N4) and trimesic acid (1,3,5-benzene-tricarboxylic acid, C9H6O6) form a salt partially solvated by both water and methanol, i.e. 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-1,3,5-benzenetricarboxylic acid-methanol-water (1/1/0.78/1.12), C16H38N42+.C9H4O62-. -0.78CH(4)O .1.12H(2)O. The anions are linked by O-H . . .O hydrogen bonds [O . . .O 2.442 (4) and 2.458 (4) Angstrom; O-H . . .O 170 and 171 degrees] into zigzag chains; orientationally disordered cations are linked to the anion chains by means of NDH . . .O hydrogen bonds [major orientation: N . . .O 2.695 (3)-3.071 (4) Angstrom, N-H . . .O 148-179 degrees; minor orientation: N . . .O 2.75 (2)-3.34 (2) Angstrom, N-H . . .O 147-170 degrees] and link the chains into sheets. The solvent molecules are all disordered, but appear to play no significant structural role apart from space filling.

Original languageEnglish
Pages (from-to)311-314
Number of pages4
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number3
Publication statusPublished - Mar 2001




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