Chemistry:Phosphide iodide

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Short description: Class of chemical compounds

Phosphide iodides or iodide phosphides are compounds containing anions composed of iodide (I) and phosphide (P3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the phosphide chlorides, arsenide iodides antimonide iodides and phosphide bromides.

Phosphorus can form clusters or chains in these compounds, so that some are 1-dimensional or fibrous.

Phosphide iodides are often metallic, black or dark red in colour.

List

formula system space group unit cell Å volume density comment ref
[Si40P6]I6.5 cubic Pm3n a=10.1293 Z=1 1039.3 3.412 clathrate [1]
K4P21I orthorhombic Ccmm a = 12.853; b = 21.795; c = 9.748 Z = 4 2730.7 2.271 ruby red;sensitive to air [2]
Ca2PI trigonal R3m a=4.30 c=22.17 3.2 yellow [3]
Ca3PI3 cubic I4132 a=12.31 Z=8 3.78 colourless [3]
Cu2P3I2 monoclinic P21c a = 15.343, b = 12.925, c = 15.260, β = 116.38°, Z = 16 band gap 0.72 eV; Cu ion conductor [4][5][6]
Cu3P15I2 monoclinic P21/n a=9.667, b=19.475, c=9.886, β =108.75(2)°, Z=4 1762.4 grey [5][7]
(CuI)3P12 monoclinic P21 a=12.846 b=13.857 c=9.651 β=109.43 Z=4 1620.2 3.866 shiny [5]
(CuI)2P14 monoclinic P21/c a = 9.919, b = 9.718, c = 16.478, β = 105.71°, Z = 4 1529.0 3.539 [8]
(CuI)5P16S [9]
(CuI)3P4S4 hexagonal P63cm a=19.082, c=6.691 Z=6 2109.9 [10]
(CuI)8P12 monoclinic P121/c1 a=15.343, b=12.925, c=15.26, β=116.38 4.64 [11]
Ge38P8I8 Cubic P43n a=10.507 silvery [12]
(CuI)5P16Se [9]
(CuI)2P8Se3 Pbcm a=9.1348 b=12.351 c=13.873 Z=4 1565.2 3.673 red; melt 408 °C; P8Se3 clusters [13]
(CuI)3P4Se4 hexagonal P63cm a = 19.601, c = 6.7196, Z = 6 orange [14]
Zn3PI3 cubic F42m a=5.945 4.87 dark grey; dec 300 °C [15]
(ZnI2)6ZnSP4S3 [11]
(ZnI2)6ZnSeP4Se3 cubic F43c a=19.542 7463.1 4.325 brown [11]
Rb4P21I orthorhombic Ccmm a = 13.281; b = 21.868; c = 9.771 Z=4 2838.1 2.619 dark red [2]
Sr2P7I cubic P213 a=10.25 dark red; contains heptaphosphanortricyclane [16]
Zr6I14P orthorhombic Cmca [17]
Ag2P3I2 monoclinic Ag ion conductor [4]
(AgI)2Ag3PS4 hexagonal P63mc a=7.395 c=12.224 Z=2 579.1 Ag ion conductor [18]
Cd2P3I monoclinic C2/c a=8.255 b=9.304 c=7.514 β =99.66 [19]
Cd3PI3 hexagonal P63mc band gap 2.44 eV [20]
Cd4P2I3 orthorhombic Pbca a=12.890 b=12.725 c=12.654 P24− [19]
SnIP soft and flexible; double helix SnI+ and P−; band gap 1.9 eV [21][22]
Sn24P19.3I8 cubic Pm3n a=10.9554 [23]
Sn24P19.3BrxI8−x cubic Pm3n [24]
Sn24P19.3(2)ClyI8−y (y ≤ 0.8) cubic Pm3n [24]
Sn20Zn4P20.8I8 cubic Pm3n a=10.883 Z=1 [25]
Sn17Zn7P22I8 cubic Pm3n a=10.8458 Z=1 [25]
Sn14In10P22I8 cubic Pm3n a=11.0450 Z=1 1347.4 5.535 black [26]
Sn14In10P21.2I8 P42/m a=24.745, c=11.067, Z=5 6776 5.521 black [26]
[Ge30.5Sn7.7P7.75]I7.88 cubic Pm3n a=10.721 Z=1 [27]
Sn24AsxP19.3−xI8 cubic Pm3n a = 10.9358—11.1495 [28]
Cs0.35Zr6I14P orthorhombic Cmca a=15.934 b=14.287 c=12.939 Z=4 black [17]
Ba2P7I monoclinic P21/m a=6.3538 b=6.8990 c=12.0392 β =95.515 Z=2 524.93 3.912 orange-yellow; water sensitive [29]
Ba3P3I2 orthorhombic Pnma a = 17.195, b = 4.624, c = 14.272, Z = 4, [30]
Ba5P5I3 monoclinic C2/m a = 42.664, b = 4.56.3, c = 9.431, β = 92.20, Z = 4 [30]
La2PI2 trigonal P3m1 a=4.236 c=10.121 Z=1 157.25 4.95 [31]
Eu2PI R3m a = 4.445, c = 23.12.6, Z = 3 [32]
Eu2P7I cubic P213 dark red; contains heptaphosphanortricyclane; band gap 1.7 eV [16]
Au7P10I trigonal P31m a=6.180 c=11.122 Z=1 [33]
Hg9P5I6 monoclinic a=13.112 b=12.486 c=17.031 β=119.90 [34]
Hg4ZnPI4 monoclinic P21 a = 7.850, b = 12.719, c = 7.861, β = 119.52°, Z = 2 like Millon phases [35]
Hg7Ag2P8I6 monoclinic C12/m1 a=13.146 b=11.037 c=8.336 β=102.210 Z=2 1182.1 7.386 black [36]
Hg12Ag41P88I41 cubic Fm3 a=26.705 Z=4 19045 5.147 dark red; air stable; P113− clusters [37]
HgAg6P20I2 monoclinic P21/m a = 6.718, b = 27.701, c = 7.383, β = 113.98°, Z = 2 [38]

References

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