Cobalt disilicide

Cobalt disilicide
Names
IUPAC name
Cobalt disilicide
Identifiers
CAS Number
  • 12017-12-8 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 57449125
ECHA InfoCard 100.031.457 Edit this at Wikidata
PubChem CID
  • 135120840
CompTox Dashboard (EPA)
  • DTXSID201010278 Edit this at Wikidata
InChI
  • InChI=1S/Co.2Si
  • [Si]=[Co]=[Si]
Properties
Chemical formula
CoSi2
Molar mass 115.104 g/mol
Appearance gray cubic crystals[1]
Density 4.9 g/cm3
Melting point 1,326 °C (2,419 °F; 1,599 K)[1]
Magnetic susceptibility (χ)
0.4×10−6 emu/g[2]
Refractive index (nD)
2.07 (589 nm)[3]
Structure
Crystal structure
Fluorite[4]
Space group
Fm3m (No. 225), cF12
Lattice constant
a = 0.5353 nm
Formula units (Z)
4
Hazards
Flash point Non-flammable
Related compounds
Other cations
Iron disilicide
Manganese disilicide
Titanium disilicide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N (what is checkY☒N ?)
Infobox references
Chemical compound

Cobalt disilicide (CoSi2) is an intermetallic compound, a silicide of cobalt. It is a superconductor with a transition temperature of around 1.4 K[5] and a critical field of 105 Oe.[6]

References

  1. ^ a b Haynes, p. 4.59
  2. ^ Shinoda, Daizaburo; Asanabe, Sizuo (1966). "Magnetic Properties of Silicides of Iron Group Transition Elements". Journal of the Physical Society of Japan. 21 (3): 555. Bibcode:1966JPSJ...21..555S. doi:10.1143/JPSJ.21.555.
  3. ^ Wu, Z.-C.; Arakawa, E. T.; Jimenez, J. R.; Schowalter, L. J. (1993). "Optical properties of epitaxial CoSi2 on Si from 0.062 to 22.3 eV". Physical Review B. 47 (8): 4356–4362. Bibcode:1993PhRvB..47.4356W. doi:10.1103/PhysRevB.47.4356. PMID 10006582.
  4. ^ Wittmann, A.; Burger, K. O.; Nowotny, H. (1961). "Mono- und Disilicidsysteme der Eisengruppe". Monatshefte für Chemie. 92 (5): 961–966. doi:10.1007/BF00924761.
  5. ^ Haynes, p. 12.64
  6. ^ Haynes, p. 12.70

Cited sources

  • v
  • t
  • e
Cobalt(I)
  • HCo(CO)4
Cobalt(II)
  • CoBr2
  • Co(CN)2
  • CoCO3
  • CoC2O4
  • CoCl2
  • Co(ClO3)2
  • Co(ClO4)2
  • CoF2
  • Co(HCO2)2
  • CoI2
  • Co(NO3)2
  • Co3(PO4)2
  • Co(OAc)2
  • CoGeO3
  • CoO
  • Co(OH)2
  • CoS
  • Co(OCN)2
  • Co(SCN)2
  • CoSO4
  • CoSe
  • Co3P2
  • CoH2
  • Co(C3H6O3)2
  • C
    24
    H
    48
    CoO
    4
  • C
    36
    H
    70
    CoO
    4
Cobalt(0, III)Cobalt(II, III)
  • Co3O4
Cobalt(III)
  • CoAs
  • CoCl3
  • Co(NO3)3
  • Co2O3
  • CoF3
  • Co(OH)3
  • LiCoO2
Cobalt(III,IV)
  • NaxCoO2
Cobalt(IV)
  • CoF4
  • Cs2CoF6
  • CoC28H44
Cobalt(V)
  • Na3CoO4
  • v
  • t
  • e
Salts and covalent derivatives of the silicide ion
SiH4
+H
He
LiSi Be2Si SiB3
SiB6
+B
SiC
+C
Si3N4
-N
+N
SiO2 SiF4 Ne
NaSi Mg2Si Al Si4− SiP, SiP2
-P
+P
SiS2
-S
SiCl4 Ar
KSi CaSi
CaSi2
ScSi Sc5Si3 Sc2Si3 Sc5Si4 TiSi
TiSi2
V3Si V5Si3, V6Si5, VSi2, V6Si5 Cr3Si Cr5Si3, CrSi, CrSi2 MnSi, MnSi2, Mn9Si2, Mn3Si, Mn5Si3, Mn11Si9 FeSi2
FeSi
Fe5Si3
Fe2Si
Fe3Si
CoSi, CoSi2, Co2Si, Co3Si NiSi, more… Cu17Si3, Cu56Si11, Cu5Si, Cu33Si7, Cu4Si, Cu19Si6, Cu3Si, Cu87Si13 Zn Ga GeSi
+Ge
SiAs, SiAs2
-As
+As
SiSe2 SiSe SiBr4 Kr
RbSi SrSi2 YSi Y5Si3, Y5Si4, Y3Si5, YSi1.4 ZrSi Zr5Si3, Zr5Si4, ZrSi2, Zr3Si2, Zr2Si, Zr3Si Nb4Si Nb5Si3 MoSi2
Mo3Si Mo5Si3
Tc RuSi Ru2Si, Ru4Si3, Ru2Si3 RhSi Rh2Si, Rh5Si3, Rh3Si2, Rh20Si13 PdSi Pd5Si, Pd9Si2, Pd3Si, Pd2Si Ag Cd In Sn Sb TeSi2 Te2Si3 SiI4 Xe
CsSi Ba2Si BaSi2, Ba5Si3 Ba3Si4 * Lu5Si3 HfSi Hf2Si, Hf3Si2, Hf5Si4, HfSi2 Ta9Si2, Ta3Si, Ta5Si3 WSi2 W5Si3 ReSi Re2Si, ReSi1.8 Re5Si3 OsSi IrSi PtSi Au Hg Tl Pb Bi Po At Rn
Fr Ra ** Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
 
* LaSi2 La5Si3, La3Si2, La5Si4, LaSi CeSi2 Ce5Si3, Ce3Si2, Ce5Si4, CeSi, Ce3Si5 PrSi2 Pr5Si3, Pr3Si2, Pr5Si4, PrSi NdSi Nd5Si3, Nd5Si4, Nd5Si3, Nd3Si4, Nd2Si3, NdSix Pm SmSi2 Sm5Si4, Sm5Si3, SmSi, Sm3Si5 Eu? GdSi2 Gd5Si3, Gd5Si4, GdSi TbSi2 SiTb, Si4Tb5, Si3Tb5 DySi2 DySi HoSi2 Ho5Si3, Ho5Si4, HoSi, Ho4Si5 ErSi2 Er5Si3, Er5Si4, ErSi Tm? YbSi Si1.8Yb, Si5Yb3, Si4Yb3, Si4Yb5, Si3Yb5
** Ac ThSi PaSi USi2 NpSi2 PuSi Am Cm Bk Cf Es Fm Md No