Preparation and crystal structure of pyridinium tetraiodoantimonate(III)-an infinite chain structure

Autor:	Marc A. ter Horst, Robert A. Jacobson, Thomas L. Hendrixson
Rok vydání:	1990
Předmět:	chemistry.chemical_classification Chemistry Iodide General Chemistry Crystal structure Condensed Matter Physics Crystal chemistry.chemical_compound Crystallography Octahedron Structural Biology X-ray crystallography Molecule Orthorhombic crystal system Pyridinium Spectroscopy
Zdroj:	Journal of Crystallographic and Spectroscopic Research. 20:105-108
ISSN:	1572-8854 0277-8068
DOI:	10.1007/bf01160960
Popis:	Crystals of (C5H5NH)SbI4 are orthorhombic, space group Pbca, witha=25.156(6),b=13.960(2),c=7.838(1) A. Least-squares refinement on the basis of 607 observed reflections gave a final residual index of 0.039. The structure is composed of SbI4− ions which form infinite chains through the crystal via iodide linkages. Each antimony lies in a distorted octahedral environment; all I-Sb-I angles are close to 90°. Similar linkages forming infinite chains had previously been found for the chloro and bromo analogues. However the asymmetry associated with the bridge appears to decrease as the size of the halogen increases.
Databáze:	OpenAIRE
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