Names | |
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Preferred IUPAC name
Disodium (Z)-1,2-dicyanoethene-1,2-bis(thiolate) | |
Other names
Sodium mnt sodium maleonitriledithiolate
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C4N2Na2S2 | |
Molar mass | 186.16 g·mol−1 |
Appearance | yellow solid |
Solubility in ethanol, DMF | Soluble |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium maleonitriledithiolate is the chemical compound described by the formula Na2S2C2(CN)2. The name refers to the cis compound, structurally related to maleonitrile ((CH(CN))2). Maleonitriledithiolate is often abbreviated mnt. It is a "dithiolene", i.e. a chelating alkene-1,2-dithiolate. It is a prototypical non-innocent ligand in coordination chemistry. Several complexes are known, such as Ni(mnt)2]2−.[2]: 143–146
The salt is synthesized by treating carbon disulfide with sodium cyanide to give the cyanodithioformate salt, which eliminates elemental sulfur in aqueous solution:[3]
The compound was first described in 1958.[4]