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Updated: May 26, 2026
06:35
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Dicyclo-hexyl-ammonium thio-cyanate: monoclinic polymorph
Acta Crystallographica. Section E, Structure Reports Online
|January 6, 2012
Summary
This study details a monoclinic polymorph of a cyclohexylammonium thiocyanate salt. Researchers identified distinct molecular structures and hydrogen-bonding patterns, forming a unique supramolecular chain architecture.
Area of Science:
- Crystallography
- Materials Science
- Supramolecular Chemistry
Background:
- The previously reported ortho-rhom-bic form of cyclohexylammonium thiocyanate salt.
- Polymorphism in organic salts and its impact on crystal structure.
Purpose of the Study:
- To characterize a novel monoclinic polymorph of cyclohexylammonium thiocyanate.
- To elucidate the structural differences and hydrogen-bonding interactions compared to the known ortho-rhom-bic form.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Analysis of molecular conformations and dihedral angles.
- Investigation of hydrogen-bonding networks and supramolecular assembly.
Main Results:
- Identification of a monoclinic polymorph of C(12)H(24)N(+)·NCS(-).
- Two independent formula units in the asymmetric unit with differing cyclohexyl ring dispositions (dihedral angles: 79.88(6) and 67.72(5)°).
- Distinct hydrogen-bonding patterns (2 × N-H⋯N vs. N-H⋯N and N-H⋯S) leading to a supramolecular chain along the c axis with square-wave topology.
Conclusions:
- The monoclinic polymorph exhibits unique structural features and hydrogen-bonding characteristics.
- The observed supramolecular architecture is a direct consequence of these specific interactions.
- This study contributes to the understanding of polymorphism and crystal engineering in organic salts.
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