Magnesium cyanide

Magnesium cyanide
Names
	Other names Magnesium dicyanide; Magnesium(II) cyanide;
Identifiers
3D model (JSmol)	Interactive image;
PubChem CID	14205320;
	InChI InChI=1S/2CN.Mg/c21-2;/q2-1;+2 Key: FKWSMBAMOQCVPV-UHFFFAOYSA-N;
	SMILES [C-]#N.[C-]#N.[Mg+2];
Properties
Chemical formula	Mg(CN)2
Molar mass	76.34 g/mol
Appearance	White solid
Melting point	500 °C (932 °F; 773 K) (decomposes)
Solubility in water	Reacts to form magnesium hydroxide
Solubility in ammonia	Slightly soluble
Related compounds
Other anions	Magnesium thiocyanate
Other cations	Calcium cyanide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Magnesium cyanide is a chemical compound with the formula Mg(CN)₂. It is a toxic white solid. Unlike calcium isocyanide, the cyanide ligands prefer to coordinate at carbon, with a 0.3‑kcal/mol isomerization barrier.^[1] When this salt is heated to 500 °C, it decomposes to magnesium nitride.^[2]

^ Kapp, Jürgen; Schleyer, Paul v. R. (1996). "M(CN)2 Species (M = Be, Mg, Ca, Sr, Ba): Cyanides, Nitriles, or Neither?". Inorg. Chem. 35 (8). ACS Publications: 2247–2252. doi:10.1021/ic9511837. PMID 11666420.
^ Fr. Fichter; Richard Suter (1924). "Über Magnesiumcyanid". Helvetica (in German). 5 (3). Wiley: 396–400. doi:10.1002/hlca.19220050311.

[cry-1] Kapp, Jürgen; Schleyer, Paul v. R. (1996). "M(CN)2 Species (M = Be, Mg, Ca, Sr, Ba): Cyanides, Nitriles, or Neither?". Inorg. Chem. 35 (8). ACS Publications: 2247–2252. doi:10.1021/ic9511837. PMID 11666420.

[pro-2] Fr. Fichter; Richard Suter (1924). "Über Magnesiumcyanid". Helvetica (in German). 5 (3). Wiley: 396–400. doi:10.1002/hlca.19220050311.

[1]

[2]

Names
Other names Magnesium dicyanide Magnesium(II) cyanide
Identifiers
3D model (JSmol)	Interactive image
PubChem CID	14205320
InChI InChI=1S/2CN.Mg/c21-2;/q2-1;+2 Key: FKWSMBAMOQCVPV-UHFFFAOYSA-N
SMILES [C-]#N.[C-]#N.[Mg+2]
Properties
Chemical formula	Mg(CN)₂
Molar mass	76.34 g/mol
Appearance	White solid
Melting point	500 °C (932 °F; 773 K) (decomposes)
Solubility in water	Reacts to form magnesium hydroxide
Solubility in ammonia	Slightly soluble
Related compounds
Other anions	Magnesium thiocyanate
Other cations	Calcium cyanide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references