4.1 Article

New Phosphorus - Tellurium Heterocycles in the Quasi - Binary System RP/Te

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Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/10426500108546588

Keywords

1,3-ditelluratriphospholanes; telluratriphosphetanes; telluraphosphiranes; triphenylphosphane; telluride; P-31 and Te-125 NMR spectroscopy; X-ray structure determination

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Condensation of amino dichlorophosphanes R2NPCl2 with Na2Te or Te(SiMe3)(2) yields the new RTe-heterocycles 1 - 4 and the phosphino substituted cyclotetraphosphanes 5. The new compounds are fully characterized by P-31 and Te-125 NMR spectroscopy. Using a triphenylphosphonium ylidyl dichlorophosphane unexpectedly orange yellow crystals of (Ph3P)(2)Te are isolated, the structure of which is determined by X-ray crystallography.

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