- Synthesis and Crystal Structure of (PPh4)2Te4
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Tetratelluride, Synthesis, FIR Spectra, Crystal Structure (PPh4)2Te4 has been prepared by the reaction of Na2Te3 with PPh4Cl in DMF solution in the presence of MnCl2 or FeCl2.The compound forms dark red crystals, which were characterized by IR spectroscopy as well as by an X-ray crystal structure determination (6109 observed independent reflections, R = 0.030).Crystal data: triclinic, space group P, Z = 2, a = 1046.7(2), b = 1130.1(2), c = 1967.8(4) pm, α = 93.63(3), β = 90.43(3), γ = 108.89(3) deg at -60 deg C.The cations are grouped in pairs (PPh4+)2 around inversion centres, each pair being surrounded by eight Te42- ions, arranged as in the CsCl type lattice.The chain-like Te42- ions have no close contacts with one another.
- Wolkers, Hans,Schreiner, Bernhard,Staffel, Ruediger,Mueller, Ulrich,Dehnicke, Kurt
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p. 1015 - 1019
(2007/10/02)
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