ChemInform Abstract: Contributions to the Chemistry of Phosphorus. Part 225. Lithium Pentahydrogen Octaphosphide.
Abstract
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ChemInform Abstract
The title compound (III) is one of the first reaction products from the metalation of P2H4 with nBuLi that has been detected. Additionally LiH4P7, LiH8P7, LixHyPz and some further polyphosphides are formed. ( III) can also be obtained by reaction of Li3P7 or LiH4P5 with P2H4 at - 25 °C and -78 °C, respectively. At -78 °C (III) is stable in the product mixture and decomposes at room temp. to Li2P16 and PH3 and some Li3P21 and Li3P19. The composition and structure of (III) are determined by 31P NMR studies, especially analysis of its low-temp. 31P(1H) NMR spectrum.
