Boron arsenide

Boron arsenide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/AsB/c1-2
    Key: DBKNIEBLJMAJHX-UHFFFAOYSA-N
  • [B]#[As]
Properties
BAs
Molar mass 85.733 g/mol[1]
Appearance Brown cubic crystals[1]
Density 5.22 g/cm3[1]
Melting point 1,100 °C (2,010 °F; 1,370 K) decomposes[1]
Insoluble
Band gap 1.82 eV
Thermal conductivity 1300 W/(m·K) (300 K)
Structure[2]
Cubic (sphalerite), cF8, No. 216
F43m
a = 0.4777 nm
4
Related compounds
Other anions
 Boron nitride
Boron phosphide
Boron antimonide
Other cations
 Aluminium arsenide
Gallium arsenide
Indium arsenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Boron subarsenide
Identifiers
3D model (JSmol)
  • InChI=1S/2AsH2.B12/c;;1-2-3(1)5(1)6(1)4(1,2)8(2)7(2,3)9(3,5)11(5,6)10(4,6,8)12(7,8,9)11/h2*1H2;
    Key: RGSVMMFVXFQAMT-UHFFFAOYSA-N
  • [B]1234[B]567[B]189[B]2%10%11[B]8%12%13[B]%10%14%15[B]%16%17%18[B]35([B]6%16%19[B]%12%14%17[B]79%13%19)[B]4%11%15%18.[As].[As]
Properties
B12As2
Molar mass 279.58 g/mol
Density 3.56 g/cm3[3]
Insoluble
Band gap 3.47 eV
Structure[4]
Rhombohedral, hR42, No. 166
R3m
a = 0.6149 nm, b = 0.6149 nm, c = 1.1914 nm
α = 90°, β = 90°, γ = 120°
6
Related compounds
Other anions
 Boron suboxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Boron arsenide (or Arsenic boride) is a chemical compound involving boron and arsenic, usually with a chemical formula BAs. Other boron arsenide compounds are known, such as the subarsenide B12As2. Chemical synthesis of cubic BAs is very challenging and its single crystal forms usually have defects.

  1. ^ a b c d Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.53. ISBN 1-4398-5511-0.
  2. ^ Perri, J. A; La Placa, S; Post, B (1958). "New group III-group V compounds: BP and BAs". Acta Crystallographica. 11 (4): 310. Bibcode:1958AcCry..11..310P. doi:10.1107/S0365110X58000827.
  3. ^ Villars, Pierre (ed.) "B12As2 (B6As) Crystal Structure" in Inorganic Solid Phases, Springer, Heidelberg (ed.) SpringerMaterials
  4. ^ Morosin, B; Aselage, T. L; Feigelson, R. S (2011). "Crystal Structure Refinements of Rhombohedral Symmetry Materials Containing Boron-Rich Icosahedra". MRS Proceedings. 97. doi:10.1557/PROC-97-145.