Anion complexes between a macrocyclic cyclophane and squaric acid: The crystal structure reveals the ideal receptor topology ordered by the substrate
- 1 August 1993
- journal article
- research article
- Published by Taylor & Francis in Supramolecular Chemistry
- Vol. 2 (4) , 331-336
- https://doi.org/10.1080/10610279308029827
Abstract
The expected [1:2] complex between a tetraprotonated tetraazapara-cyclophane and squaric acid is not formed and the ligand undergoes drastic deformation. The peculiar features of this structure is the coexistence, in the same crystal cell, of 2 types of crystal lattice inclusions, corresponding to 2 different dissociation modes of squaric acid.Keywords
This publication has 6 references indexed in Scilit:
- Complexation of uncharged molecules and anions by crown-type host moleculesPublished by Springer Nature ,2007
- The stereochemistry of the water molecules in the hydrates of small biological moleculesActa crystallographica Section B, Structural science, crystal engineering and materials, 1990
- Anion coordination chemistry - synthesis and anion binding features of cyclophane type macrobicyclic anion receptor moleculesTetrahedron Letters, 1986
- An empirical method for correcting diffractometer data for absorption effectsActa Crystallographica Section A Foundations of Crystallography, 1983
- Cryptates: inclusion complexes of macropolycyclic receptor moleculesPure and Applied Chemistry, 1978
- The squaric acid molecule: a hydrogen bond study of dimethylammonium hydrobis(hydrogen squarate)(H2NMe2)+[H3(C4O4)2]?Journal of the Chemical Society, Perkin Transactions 2, 1974