Phosphide chloride
A Phosphide chloride is a mixed anion compound containing both phosphide (P3− ) and chloride (Cl− ) ions.
A common structural element is P7 3− which is called heptaphosphanortricyclane with a formal IUPAC name of heptaphosphatricyclo[2.2.1.02,6 ]heptane.[ 1]
Group 12 elements , cadmium and mercury are in most of the known compounds.
List
name
formula
formula weight
crystal system
space group
unit cell Å
volume
density
comments
ref
Ca3 PCl3
cubic
Pm 3 m
a=5.713 Z=1
186.48
2.29
[ 2]
Cu6 PS5 Cl
607.96
cubic
P 4 3m
a=9.6962 Z=4
911.6
4.430
red
[ 3]
Sr2 PCl
cubic
a=6.18
[ 4]
Sr2 P7 Cl
monoclinic
C 2/c
a=14.571 b=12.212 c=22.292 β=103.740° Z=16
3853
3.948
P7 3– , clusters
[ 1]
Ag6 PS5 Cl
cubic
P 4 3m
a=10.3514 Z=4
1109.2
5.234
orange
[ 3]
α-Cd3 PCl3
hexagonal
a=7.63 c=7.13
pale yellow >530 °C or quenched
[ 5]
β-Cd3 PCl3
monoclinic
a=6.99 b=7.97 c=7.38 β=118.1°
pale yellow <530 °C
[ 5]
Cd4 P2 Cl3
617.89
cubic
Pa 3
a=12.1474 Z=8
1792.5
4.579
yellow; band gap 2.36 eV
[ 6]
Cd2 P3 Cl
monoclinic
C 2/c
a=7.98 b=8.98 c=7.55 β=
brown; band gap 1.87
[ 7]
Cd2 PCl2
monoclinic
P 21 /n
a=7.736 b=8.957 c=7.880 β=118.92° Z=4
477.93
4.540
yellow
[ 8] [ 9]
Cd7 P4 Cl6
cubic
Pa 3
a=11.93
light green
[ 7]
Ba2 P7 Cl
monoclinic
P 21 /m
a = 11.726, b = 6.829, c = 6.337, β = 95.27°, Z = 2
P7 3– , clusters
[ 1] [ 10]
La3 Zn4 P6 Cl
orthorhombic
Cmcm
a= 4.0576 b 13.632 c 21.547 Z=4
1191.8
5.013
black; thermal conductivity 0.7 Wm−1 K−1 (low)
[ 11] [ 12]
Eu2 PCl
cubic
Fm 3m
a = 6.106, Z = 2
[ 13]
W6 PCl17
orthorhombic
Imm2
a=6.7835 b=15.8762 c=10.0727 Z=2
1084.79
5.3168
black
[ 14]
W4 (PCl)Cl10
monoclinic
C 2/m
a=13.257 b=9.850 c=11.400 β=91.38 Z=4
1488.2
5.161
black; chloro-phosphinidene ligand
[ 14]
[Hg4 P2 ][HfCl6 ]
orthorhombic
Pbca
a=12.919 b=13.263 c=16.239 Z=8
2783
5.994
yellow
[ 15]
Hg2 PCl2
monoclinic
I 2/m
a =7.643,b =7.977,c =8.539,β =115.23°,Z =4
469.8
7.113
yellow
[ 16] [ 17]
Hg2 P3 Cl
monoclinic
C 2/c
a = 7.834, b = 8.844, c = 7.591, β = 98.68°, Z = 4
[ 18]
[Hg6 P4 ](TiCl6 )Cl
cubic
Pa 3
a =11.7675, Z =4
1627.2
6.627
black or dark brown
[ 19]
(Hg6 P4 )(CrCl6 )Cl
1627.57
cubic
Pa 3
a=11.7364 Z=4
1616.6
6.687
yellow; resistivity is humidity sensitive
[ 20]
(Hg6 P4 )(CuCl3 )2
monoclinic
C 2/c
a=23.633 b=8.956 c=14.248 β =124.213° Z=6
2493.9
6.660
pinkish-red; ferroelectric below 37 K: 114 μC m−2
[ 21]
(Hg23 P12 )(ZnCl4 )6
hexagonal
P 6 2m
a=12.9774 c=11.749 Z=1
1713.6
6.035
yellow
[ 22]
(Hg11 P4 )(GaCl4 )4
monoclinic
C 2/m
a=12.762 b=7.353 c=22.040 β=100.32 Z=2
2034.7
5.185
yellow
[ 23]
[Hg4 P2 ][ZrCl6 ]
orthorhombic
Pbca
a=12.899 b=13.255 c=16.196 Z=8
2769.1
5.604
yellow
[ 15]
Hg4 Ag5P8 Cl5
orthorhombic
Cmcm
a=11.1426 b=14.5064 c=11.8444 Z=4
1914.5
6.129
high temp
[ 24]
Hg4 Ag5P8 Cl5
monoclinic
C 2/m
a=14.490 b=10.904 c=6.2863 β=104.094 Z=2
963.4
6.090
[ 24]
[Hg6 P4 Cl3 ](SnCl3 )
cubic
P 21 3
a = 11.865 Z=4
[ 25]
(Hg6 P4 Cl3 )(PbCl3 )
cubic
P 21 3
a=11.8837 Z=4
1678.24
6.916
yellow
[ 22]
References
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Salts and covalent derivatives of the
chloride ion