Phosphide bromide

Phosphide bromides or bromide phosphides are compounds containing anions composed of bromide (Br⁻) and phosphide (P³⁻) anions. Usually phosphorus is covalently connected into more complex structures. They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the phosphide chlorides, phosphide iodides, nitride bromides, arsenide bromides, and antimonide bromides.

List

formula	system	space group	unit cell Å	volume	density	comment	ref
Ca2PBr	cubic	I43d	a=5.96 Z=2			red brown	[1]
Ca2PBr	hexagonal	R3m	a=4.23 c=20.9 Z=3				[1]
Cu12P20Br10	triclinic	P	a = 9.886, b = 13.190, c = 14.763, α = 70.83°, β = 82.68°, γ = 80.13°, Z = 2	1786.1			[2]
Cu13P15Br12							[3]
Cu6PS5Br	cubic	P43m	a=9.732 Z=4	921.8	4.701	red	[4]
(CuBr)2P8Se3	orthorhombic	Pbcm	a=8.761 b=11.957 c=13.858 Z=4	1451.8			[5]
Sr2PBr	cubic	I43d	a=9.31 Z=2			brown violet	[1]
Sr2PBr	hexagonal	R3m	a=4.44 c=22.0 Z=3			dark reddish brown	[1]
Sr2P7Br	cubic	P213	a=9.789 Z=4	938.0	3.342	red band gap 2.1 eV	[6]
Y2PBr2	rhombohedral		a=3.9807 c=29.250				[7]
Ag6PS5Br	cubic	P43m	a=10.3765 Z=4	1117.26	5.460	red	[4]
Cd5P2Br4	orthorhombic	Pna21	a=12.189, b=7.7080, c=13.664				[8]
Sn24P19.3Br8							[9]
Sn17Zn7P22Br8	cubic	Pm3n	a=10.7449				[10]
Sn24−xInxP19.2+0.2x x<16	cubic	Pm3n					[11]
Si30+xP16–xTe8–xBrx x = 1–6.4	cubic	Pm3n	a=9.9720 - 10.0405				[12]
Ba2PBr	hexagonal	R3m	a=4.67 c=23.3 Z=3				[1]
Ba2P7Br	monoclinic	P21/m	a=6.294 b=6.835 c=11.850 β=95.819 Z=2	507.2	3.742	orange	[13]
La2PBr2	trigonal	P3m1	a=4.311 c=11.000 Z=1	177.04	5.28		[7]
La3Zn4P6.6Br0.8	orthorhombic	Cmcm	a=4.099 b=14.229 c=20.388 Z=4	1189.0	5.290	black	[14]
Eu2PBr		R3m	a = 4.385, c = 21.90, Z = 3				[15]
W4(PBr)Br10	monoclinic	C12/m1	a=14.0933 b=10.3228 c=11.8169 β=93.906 Z=4	1715.16		dark green	[16]
Hg2P3Br	orthorhombic	Pbcn	a = 8.014, b = 8.902, c = 7.823, Z = 4				[17]
Hg7P4Br6	monoclinic	P21/c	a = 6.0452, b = 19.848, c = 7.5596 β = 104.214° Z=2	879.3	7.582	brown	[18]
(Hg2P)2HgBr4	monoclinic	P21	a=7.776 b=12.226 c=7.930 β=121.34 Z=2	643.9	7.141	discovered in 1907; bright yellow; air with light sensitive	[19]
[Hg7P4Br3](SnBr3)	cubic	P213	a=12.490 Z=4				[20]