Recueil des Travaux Chimiques des Pays-Bas · 1977 · 18 citations · 12 references
Natural SciencesChemistryCrystal StructureInorganic ChemistryPhysical ChemistryCoordination ChemistryCrystal ChemistryCrystal SymmetryCrystallographyStructure DeterminationTransition Metal ComplexesArsenic ChemistryCoordinationCoordination Geometry DeterminationCrystal Symmetry AnalysisCrystal Symmetry DeterminationCrystallographic CharacterizationLanthanide Coordination Chemistry
Abstract The preparation and some physical measurements of a new class of group Vb dithiocarbamato compounds X 2 M(Et 2 dtc) (X = Cl, Br, I; M = As, Sb, Bi; Et 2 dtc = SC(S)NEt 2 ) is reported. The crystal structure of Br 2 As(Et 2 dtc) is determined to a conventional R value of 0.05. The compound, crystallizing in the monoclinic space group P 2 1 / c with a = 6.407(2), b = 19.054(8), c = 9.405(4)Å, β = 104.0(2)° and Z = 4, is dimeric with two halogen bridges between 5‐coordinated As centres, the dtc ligands being bidentate. The coordination symmetry of the As is due to the stereochemical active lone electron pair as in IF 5 .
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