Chemistry:2-Imidazolidinethione

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2-Imidazolidinethione
ImThione.svg
2-Mercaptoimidazole.jpg
Names
Preferred IUPAC name
1,5-Dihydro-2H-imidazole-2-thione
Other names
2-Mercaptoimidazole
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
EC Number
  • 212-823-4
UNII
Properties
C3H4N2S
Molar mass 100.14 g·mol−1
Appearance white solid
Melting point 225–227 °C (437–441 °F; 498–500 K)
Hazards
GHS pictograms GHS07: Harmful
GHS Signal word Warning
H315, H319, H335
P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
Related compounds
Related compounds
Ethylene thiourea, Aminothiazole, 1,3-Dihydroimidazol-2-one (2-hydroxyimidazole)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

2-Imidazolidinethione is the organosulfur compound with the formula C2H2(NH)2C=S. It is a cyclic unsaturated thiourea with a short C=S bond length of 169 pm.[1] The compound is often referred to as 2-mercaptoimidazole, which is a tautomer that is not observed. The compound forms a variety of metal complexes.[2] In terms of bonding and reactivity, 2-imidazolidinethione is similar to mercaptobenzimidazole.

References

  1. Owczarzak, Agata; Dutkiewicz, Zbigniew; Kurczab, Rafał; Pietruś, Wojciech; Kubicki, Maciej; Grześkiewicz, Anita M. (2019). "Role of Staple Molecules in the Formation of S···S Contact in Thioamides: Experimental Charge Density and Theoretical Studies". Crystal Growth & Design 19 (12): 7324–7335. doi:10.1021/acs.cgd.9b01204. 
  2. Lobana, Tarlok S.; Sharma, Renu; Sharma, Rekha; Butcher, Ray J. (2008). "Metal Derivatives of Heterocyclic Thioamides: Synthesis and Crystal Structures of Copper Complexes with 1-Methyl-1,3-imidazoline-2-thione and 1,3-Imidazoline-2-thione". Zeitschrift für Anorganische und Allgemeine Chemie 634 (10): 1785–1790. doi:10.1002/zaac.200800161.