Catalytic decomposition of phosphorus compounds to produce phosphorus atoms
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In-situ production of PH3 from red phosphorus and atomic hydrogen
The production of PH3 from red phosphorus and the atomic hydrogen formed in the catalytic decomposition of H2 on heated W surfaces was confirmed. The absolute density of the PH3 could be as high as 10 cm; the density was proportional to H-atom density in the absence of red phosphorus, although three H atoms must be involved in the production of one PH3 molecule, but showed minor dependence on t...
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A wide range of binary compounds is known in the system phosphorus-sulfur. They consist of discrete cage-like molecules with the composition P4Sn (n= 3–10) except for P14S. [1] The cages can formally be derived from the P4 tetrahedron of white phosphorus either by insertion of sulfur atoms into P P bonds or by exocyclic addition to phosphorus atoms. The maximum amount of sulfur per molecule is ...
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The title compounds were prepared by solid state reaction of the elemental components. Their crystal structures were determined from single-crystal X-ray diffractometer data. Ag2SiP2: 142d, a = 652.75(5) pm, c = 855.0(1) pm, Z = 4, R = 0.024 for 611 structure factors and 14 variable parameters; AuSiP: R3m, a = 345.9(1) pm, c = 1720.0(3) pm, Z = 3, R = 0.023 (352 F values, 11 variables). The sil...
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In a 4-isopropyl-1-oxa-3-oxonia-2-borata-naphthalene the isopropyl group exhibits the same conformational phenomena as the Me2N group in 8-dimethylamino-naphth-1-yl-silanes and related phosphorus compounds. Since the details can be fully rationalized on the basis of the steric situation and electronic factors are excluded, the common features cannot serve to infer dative interaction from nitrog...
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A new and smooth approach towards alkynylphosphine derivatives is described. It relies on the unprecedented catalytic coupling of secondary phosphine boranes with alkynyl bromides using the CuI/1,10-phenanthroline couple.
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تاریخ انتشار 2017