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Die Bindungsverhältnisse in Phosphantelluriden. Eine empirische NMR-Studie und die Kristallstruktur von (iso-C<sub>3</sub>H<sub>7</sub>)<sub>3</sub>PTe [1] / The Nature of the Bonding in Phosphane Tellurides. An Empirical NMR Study and the Crystal Structure of (iso-C<sub>3</sub>H<sub>7</sub>)<sub>3</sub>PTe [1]
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1990
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Inorganic ChemistryCrystal StructureEngineeringNatural SciencesChemical BondMe 3Empirical Nmr StudyTe Nmr DataMolecular BiologySpectra-structure CorrelationPhysical ChemistryQuantum ChemistryChemistryPhosphane TelluridesNuclear Magnetic Resonance SpectroscopyCrystallographyBiophysicsBond Order
31 P and 125 Te NMR data of trialkylphosphane tellurides are compared. The deviation of the shifts for Me 3 PTe and 'Bu 3 PTe from those of other phosphane tellurides is interpreted in terms of high s-character of the P–Te bond originating from the phosphorus (R = Me) and the tellurium (R = 'Bu) atom, respectively. The molecular structure of 'Pr 3 PTe has been determined by X-ray crystallography (P–Te 2.365 A). A reduction of the bond order is suggested based also on a comparison of the R 3 PSe and R 3 PTe NMR data.