Universität zu Köln

Edisa, Zehra and Bloukhb, Samir Haj (2014). Preparation and Structural and Spectroscopic Characterization of Triiodides [M(12-Crown-4)(2)]I-3 with M=Na and Rb. Z.Naturforsch.(B), 69 (9-10). S. 995 - 1003. BERLIN: WALTER DE GRUYTER GMBH. ISSN 1865-7117

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Abstract

Reddish-brown crystals of [Na(12-crown-4)(2)]I-3 (1) and [Rb(12-crown-4)(2)]I-3 (2) were formed through the reaction of NaI or RbI, I-2 and 12-crown-4 in ethanol. Both structures are triclinic, space group P (1) over bar with Z = 2. The lattice parameters are a = 8.505(2), b = 14.280(3), c = 10.695(2) angstrom and alpha = 89.86(2)degrees, beta = 80.00(2)degrees and gamma = 85.90(2)degrees; and a = 10.694(2)degrees, b = 11.598(2), c = 12.718(2) angstrom and alpha = 71.00(2)degrees, beta = 86.97(2)degrees and gamma= 67.710(10)degrees for 1 and 2, respectively. Both crystal structures contain one independent complex cation without crystallographic symmetry. The anionic parts of both structures consist of two crystallographically independent, isolated, triiodide anions I-3(-) with crystallographic inversion symmetry. The cations are distorted sandwich-like complexes with two 12-crown-4 molecules surrounding the alkali metal atom in the center.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Edisa, Zehra UNSPECIFIED UNSPECIFIED UNSPECIFIED Bloukhb, Samir Haj UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-426272
DOI:	10.5560/ZNB.2014-4044
Journal or Publication Title:	Z.Naturforsch.(B)
Volume:	69
Number:	9-10
Page Range:	S. 995 - 1003
Date:	2014
Publisher:	WALTER DE GRUYTER GMBH
Place of Publication:	BERLIN
ISSN:	1865-7117
Language:	German
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ELECTRONIC-ABSORPTION-SPECTRA; POLYIODIDE; RAMAN; TEMPLATE; HALOGEN; IODINE Multiple languages Chemistry, Inorganic & Nuclear; Chemistry, Organic Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/42627