Sodium maleonitriledithiolate
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| Sodium maleonitriledithiolate | |
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| IUPAC name | sodium cis-1,2-dicyano-1,2-ethylenedithiolate |
| Other names | sodium mnt sodium maleonitriledithiolate |
| Properties | |
| Molecular formula | C4N2Na2S2 |
| Molar mass | 186.17 |
| Appearance | yellow solid |
| Solubility in water | ethanol, DMF |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Sodium maleonitriledithiolate is the chemical compound described by the formula Na2S2C2(CN)2. The name refers to the cis compound, formally derived from maleonitrile. The dianion is a "dithiolene", i.e. a chelating alkene-1,2-dithiolate that serves as a non-innocent ligand for transition metals. Several complexes are known, such as [Ni(mnt)2]2-.
The salt is synthesized by treating carbon disulfide with sodium cyanide to give the cyanodithioformate salt, which eliminates elemental sulfur in aqueous solution:[1]
- 2 NaCN + 2 CS2 → Na2S2C2(CN)2 + 1/4 S8
The compound was first described by Bähr and Schleitzer 1958.[2]
[edit] References
- ^ R. H. Holm, A. Davison "Metal Complexes Derived from cis-1,2-Dicyano-1,2-Ethylenedithiolate and Bis(trifluoromethyl)-1,2-Dithiete" Inorganic Syntheses 1967, volume X, pp.8-26.
- ^ G. Bähr and G. Schleitzer (1957). "Beiträge zur Chemie des Schwefelkohlenstoffs und Selenkohlenstoffs, II. Die Kondensierende Spontan-Entschwefelung von Salzen und Estern der Cyan-Dithioameisensäure. Freie Cyan-Dithioameisensäure". Chemische Berichte 90: 438–443. doi:.
