Molybdenum diarsenide

Identifiers

CAS Number

* 2006-24-5

3D model (JSmol)

* Interactive image

InChI

* InChI=1S/2As.Mo

Key: SUNOQBBRKUWPGB-UHFFFAOYSA-N

SMILES

* [Mo].[As].[As]

Properties

Chemical formula

| As2Mo
Molar mass | 245.79 g·mol−1
Appearance  | black solid[1]
Density | 8.07 g·cm−3[1]

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Molybdenum diarsenide is an arsenide of molybdenum, with the chemical formula MoAs2. Other arsenides of molybdenum are Mo2As3 and Mo5As4.[2][3]

## Preparation

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Molybdenum diarsenide can be prepared by the reaction of molybdenum and arsenic at 570 °C.[1]

## Properties

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Molybdenum diarsenide is a black solid,[1] and is a superconductor at 0.41 K.[4] It crystallises in the monoclinic crystal system, with space group (No. 12).[5] It has the same structure as molybdenum diphosphide. It is insoluble in concentrated hydrochloric acid or hydrogen peroxide, but easily soluble in nitric acid, hot concentrated sulfuric acid and aqua regia.[6]

## References

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1. ^ a b c d "Molybdenum Arsenide, MoAs2". arsenic.atomistry.com. Retrieved 2023-07-01.
2. ^ Murray, J.J.; Taylor, J.B.; Usner, L. (Aug 1972). "Halogen transport of molybdenum arsenides and other transition metal pnictides". Journal of Crystal Growth. 15 (3): 231–239. Bibcode:1972JCrGr..15..231M. doi:10.1016/0022-0248(72)90123-6.
3. ^ Taylor, J. B.; Calvert, L. D.; Hunt, M. R. (1965-11-01). "The Arsenides of Tungsten and Molybdenum: WAs2, W2As3, MoAs2, Mo2As3, and Mo5As4". Canadian Journal of Chemistry. 43 (11): 3045–3051. doi:10.1139/v65-419. ISSN 0008-4042.
4. ^ Jane E. Macintyre (1994). Dictionary of Inorganic Compounds, Supplement 2. CRC Press. p. 6\. ISBN 978-0-412-49100-9.
5. ^ Wang, Jialu; Li, Lin; You, Wei; Wang, Tingting; Cao, Chao; Dai, Jianhui; Li, Yuke (2017-11-15). "Magnetoresistance and robust resistivity plateau in MoAs2". Scientific Reports. 7 (1): 15669. arXiv:1610.08594. Bibcode:2017NatSR...715669W. doi:10.1038/s41598-017-15962-w. ISSN 2045-2322. PMC 5688174. PMID 29142314.
6. ^ Reece H. Vallance (1938). J. Newton Friend (ed.). A Text Book Of Inorganic Chemistry Volume VI Part IV Arsenic. Charles Griffin. pp. 71–72.

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Molybdenum compounds

Mo(0)|

* Mo(CO)6
* Mo3P

Mo(II)|

* MoBr2
* MoCl2
* MoI2
* MoSi2

Mo(III)|

* MoBr3
* MoCl3
* MoI3
* Mo2O3
* Mo2(OtBu)6
* MoP

Mo(IV)|

* MoBr4
* MoCl4
* MoF4
* MoO2
* MoS2
* MoSe2
* MoTe2
* MoP2
* MoAs2

Mo(V)|

* MoCl5
* MoF5
* Mo2O5

Mo(VI)|

* Molybdates
* Molybdic acid
* MoO3
* MoCl6
* MoOF4
* MoOCl4
* MoF2O2
* MoO2Cl2
* MoF6
* MoS3

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Arsenides

Binary arsenides|

| AsH3
+H |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | He

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LiAs | Be |  |  |  |  |  |  |  |  |  |  |  | BAs | C | +N | +O | F | Ne
Na3As | Mg |  |  |  |  |  |  |  |  |  |  |  | AlAs | -Si | P | S | +Cl | Ar
K | CaAs |  | Sc | Ti | V | Cr | MnAs | Fe | CoAs | Ni | Cu | Zn3As2 | GaAs | -Ge | As | Se | +Br | Kr
Rb | Sr |  | YAs | Zr | Nb | MoAs2 | Tc | Ru | Rh | PdAs2 | Ag | Cd3As2 | InAs | -Sn | Sb | +Te | +I | Xe
Cs | Ba | *  | Lu | Hf | TaAs | WAs2 | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | BiAs | Po | At | Rn
Fr | Ra | **  | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og
|  | ↓ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | * | La | Ce | PrAs | Nd | Pm | SmAs | Eu | Gd | Tb | DyAs | HoAs | Er | Tm | Yb |
|  | ** | Ac | Th | Pa | U | NpAs
NpAs2 | PuAs | Am | Cm | Bk | Cf | Es | Fm | Md | No |

Ternary arsenides|

* AlGaAs
* AlInAs
* AlAsSb
* GaAsP
* GaAsSb
* (Ga,Mn)As
* InAsSb

Quaternary arsenides|

* Zn-Cd-P-As
* InAsSbP

Quinary arsenides|

* GaInAsSbP

See also|

* Oxyarsenides

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