Synthesis of tin-tellurium polyanions: structure of (Me/sub 4/N)/sub 4/Sn/sub 2/Te/sub 6/
The reaction of KSn with Te at high temperature gives congruently melting K/sub 4/SnTe/sub 4/ (1) and Sn. Aqueous extraction and workup of the crude K/sub 4/SnTe/sub 4/ alloy give nearly quantitative yields of K/sub 4/SnTe/sub 4/ identified by /sup 119/Sn and /sup 125/Te NMR, /sup 119/Sn Moessbauer, and Raman measurements. Depending on the cation and solvent used, a variety of products can be isolated from solutions of SnTe/sub 4//sup 4 -/ including Te/sub 4//sup 2 -/ and Sn/sub 2/Te/sup 4 -//sub 6/. The compound (methyl)(Me/sub 4/N)/sub 4/Sn/sub 2/Te/sub 6/, which was structurally characterized, is isostructural with B/sub 2/H/sub 6/ and exhibits effective D/sub 2h/ symmetry. The ditinhexatelluride (4-) anion crystallized in the monoclinic space group P2/sub 1//c with lattice constants at -168/sup 0/C of a = 11.229 (5) A, b = 13.590 (6) A, c = 12.67 (7) A, and ..beta.. = 116.96 (2)/sup 0/ with Z = 2. The x-ray data were refined to residuals of R = 0.0296 and R/sub w/ = 0.0312, giving terminal Sn-Te distances of 2.700 (2) and 2.689 (1) A and bridging Sn-Te distances of 2.794 (1) and 2.804 (1) A. 32 references, 5 figures, 3 tables.
- Research Organization:
- Indiana Univ., Bloomington
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6766326
- Journal Information:
- Inorg. Chem.; (United States), Vol. 23:15
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POTASSIUM TELLURIDES
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TELLURIUM COMPLEXES
TIN COMPLEXES
ANIONS
CRYSTAL STRUCTURE
DATA ANALYSIS
EXPERIMENTAL DATA
INTERATOMIC DISTANCES
LATTICE PARAMETERS
MOESSBAUER SPECTROMETERS
MOLECULAR STRUCTURE
MONOCLINIC LATTICES
NMR SPECTRA
QUATERNARY COMPOUNDS
RAMAN SPECTRA
TIN TELLURIDES
X-RAY DIFFRACTION
ALKALI METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
CRYSTAL LATTICES
DATA
DIFFRACTION
DISTANCE
GAMMA SPECTROMETERS
INFORMATION
IONS
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC COMPOUNDS
POTASSIUM COMPOUNDS
SCATTERING
SPECTRA
SPECTROMETERS
TELLURIDES
TELLURIUM COMPOUNDS
TIN COMPOUNDS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)