Caesium phosphide

Rubidium and caesium phosphides have been made by similar methods and by distilling phosphorus in a vacuum with the alkali metal. The formulae are given as Rb2P5 and Cs2P5 K2P5 is also known.1... 

Caesium phosphide, CsaPg.—The phosphide resembles the corresponding potassium derivative (p. 181). It can be prepared by Hackspill and Bossuet s method (p. 181, reference 3). 

The structure of caesium phosphide, Cs3P7, belongs in space group P41 and has lattice parameters a = b = 0.9046 nm, c = 1.6714 nm. The structure is tetragonal, and the screw axis runs parallel to the c-axis. All of the atoms must be placed in equivalent general positions, the... 

Aluminium carbide, 1027 Aluminium phosphide, 0083 Bismuth nitride, 0230 Caesium graphite, 2877 Calcium disilicide, 3938 Calcium phosphide, 3941 Calcium silicide, 3937 Copper diphosphide, 4278 Copper monophosphide, 4277 Copper(II) phosphide, 4284 Dialuminium octavanadium tridecasilicide, 0088 Dicobalt boride, 0128 Ditungsten carbide, 0561 Ferrosilicon, 4384 Hexalithium disilicide, 4684 Iron carbide, 0364... 

Interest in the synthesis and structural characterisation of less common metalloorganophosphide systems has continued. A range of alkali metal complexes of the phosphide anion (48) has been prepared from the lithio-phosphide by simple metathesis with alkali metal alkoxides. The lithio-phosphide exists as a dimer, but crystallisation of the sodium and potassium drivatives in the presence of TMEDA results in the formation of monomeric species. The caesium triphosphenide (49), involving a phosphorus analogue of the allyl anion, has been prepared from the previously described sodium complex. Unlike the sodium and potassium complexes, which are monomeric, the caesium complex has a polymeric structure. A variety of arylphosphide complexes of magnesium, calcium, strontium and barium have been prepared and their solid state structures characterised. Cop-per(I)-, silver(I)- and gold(I)-complexes of the cyclo-(P ion have also... 

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