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• W2000588672 abstract "Die thermische Zersetzung von Diphosphanboran (1) führt unter milden Temperaturbedingungen zur Bildung von Phosphan-boran, PH3 · BH3, und Triphosphan-2-boran, PH2PH(BH3)PH2 (2). In Gegenwart von Diphosphan-1,2-bis(boran) entsteht zusätzlich Triphosphan-1,3-bis-(boran), BH3PH2PHPH2BH3 (3). Bei Raumtemperatur wird ein polymerer Feststoff gebildet, der Phosphor, Bor und Wasserstoff in wechselnder Zusammensetzung enthält. Die Verbindung 1 reagiert mit Metallierungsmitteln, wie n-BuLi, LiBH4 und NaBH4, zum Boran-trihydrogendiphosphid-Ion, [PH2PHBH3]−, das sofort zu entsprechenden Mono- und Triphosphanderivaten disproportioniert. Bei Anwesenheit von überschüssigem THF-Boran und Reaktion im Molverhältnis 1 : NaBH4 = 1 : 1 kann die Disproportionierung verhindert und das neue Diphosphidderivat Natrium-1,1,2-tris-(boran)-1,2,2-trihydrogendiphosphid, Na[(BH3)2PHPH2BH3] (4), gewonnen werden. Mit weiterem NaBH4 entsteht das Diphosphid-Dianion mit vier koordinierten BH3-Gruppen. Contributions to the Chemistry of Phosphorus. 240. On the Reactive Behaviour of Diphosphane-borane, P2H4 · BH3 Under mild temperature conditions, the thermal decomposition of diphosphane-borane (1) gives rise to the formation of phosphane-borane, PH3 · BH3, and triphosphane-2-borane, PH2PH(BH3)PH2 (2). In the presence of diphosphane-1,2-bis(borane), triphosphane-1,3-bis(borane), BH3PH2PHPH2BH3 (3), is formed additionally. The thermolysis product at room temperature is a polymeric solid of varying composition which contains phosphorus, boron, and hydrogen. Compound 1 reacts with metalating agents such as n-BuLi, LiBH4, and NaBH4 to furnish the borane-trihydrogendiphosphide ion, [PH2PHBH3]−, which immediately disproportionates to give the corresponding mono-and triphosphane derivatives. In the presence of an excess of THF-borane and in the case of a 1 : 1 molar ratio of 1 : NaBH4, the disproportionation does not occur and the new diphosphide derivative sodium-1,1,2-tris(borane)-1,2,2-trihydrogendiphosphide, Na[(BH3)2PHPH2BH3] (4) can be obtained. The action of additional NaBH4 yields the diphosphide dianion with four coordinated BH3 groups." @default.
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• W2000588672 date "1996-12-01" @default.
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• W2000588672 title "Beitr�ge zur Chemie des Phosphors. 240 [1]. Zum reaktiven Verhalten von Diphosphan-boran, P2H4 � BH3" @default.
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• W2000588672 doi "https://doi.org/10.1002/zaac.19966221207" @default.
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