The crystal and molecular structures of [Te(S2COR)2], R = nPr and CH2CH2CMe3
Abstract
The crystal and molecular structures of bis(n-propyldithiocarbonato)tellurium (II), [Te(S2COnPr)2] (1), C8H14O2S4Te, and bis(3,3-dimethylbutyldithiocarbonato)tellurium(II), [Te(S2COCH2CH2CMe3)2] (2), C14H26O2S4Te, have been determined at room temperature. The red crystals of 1 are monoclinic, space group P21 with unit cell dimensions a = 10.501(6) Å, b = 5.973(3) Å, c = 12.055(1) Å, β = 102.39(2)°, Z = 2 and Dx = 1.790Mg m−3. The red crystals of 2 are also monoclinic, space group P21/c with unit cell dimensions a = 16.744(6) Å, b = 6.098(4) Å, c = 21.334(3) Å, β = 104.89(2)°, Z = 4 and Dx = 1.521Mg m−3. The structures were solved by direct methods and each refined by a full-matrix least-squares procedure to final R = 0.046 using 1314 reflections for 1 and to final R = 0.061 using 1194 reflections for 2. The molecular structures are similar and each feature two asymmetrically coordinating xanthate ligands that define a trapezoidal planar coordination geometry about the tellurium(II) center; the lone pairs of electrons are thought to lie over the weaker Te–S interactions. Each of the crystal structures is stabilised by supramolecular Te…S interactions.
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- Rietveld refinement of the as synthesized and partially calcined forms of the molecular sieve GaPO4-ZON
- The crystal structure of dibenzoylmethane, C15H12O2 (enol form)
- The crystal and molecular structures of [Te(S2COR)2], R = nPr and CH2CH2CMe3
- Crystal structure of bis(diphenylglyoximato)nickel(II), Ni(pdg)2
- Unusual conformations adopted by standard amino acids in Aib-containing oligopeptides
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- Books Received
Articles in the same Issue
- Generalized Fibonacci numbers and coordination sequences for decorated Bethe lattices
- An improved method for analysing single crystal diffuse scattering using the Reverse Monte Carlo technique
- Enumeration of periodic tetrahedral frameworks
- Revised crystal structure of molybdenum hydroxymonophosphate, MoO2 · H2O · P(O3OH)
- The crystal structure of lithiumpentamolybdate Li4Mo5O17
- Rietveld refinement of the as synthesized and partially calcined forms of the molecular sieve GaPO4-ZON
- The crystal structure of dibenzoylmethane, C15H12O2 (enol form)
- The crystal and molecular structures of [Te(S2COR)2], R = nPr and CH2CH2CMe3
- Crystal structure of bis(diphenylglyoximato)nickel(II), Ni(pdg)2
- Unusual conformations adopted by standard amino acids in Aib-containing oligopeptides
- Physical properties and phase transitions of bis(guanidinium)zirconium bis(nitrilotriacetate)hydrate, [C(NH2)3]2Zr[N(CH2COO)3]2 · H2O
- Books Received
