Chloro(tetrahydrothiophene)gold(I)

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Chloro(tetrahydrothiophene)gold(I)
Chloro(tetrahydrothiophene)gold(I).png
Chloro(tetrahydrothiophene)gold(I)-from-xtal-1993-CM-3D-balls.png
Identifiers
  • 39929-21-0
3D model (JSmol)
ChemSpider
  • InChI=1S/C4H8S.Au.ClH/c1-2-4-5-3-1;;/h1-4H2;;1H/q;+1;/p-1
    Key: UCGCVRKULHHWGA-UHFFFAOYSA-M
  • C1CCSC1.Cl[Au]
Properties
C4H8AuClS
Molar mass 320.58 g·mol−1
Appearance White to off-white powder
Structure
orthorhombic
Pmc21, No. 26
a = 6.540(1) Å, b = 8.192(1) Å, c = 12.794(3) Å
4
Related compounds
Related compounds
 chloro(dimethyl sulfide)gold(I), bromo(tetrahydrothiophene)gold(I)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Chloro(tetrahydrothiophene)gold(I), abbreviated (tht)AuCl, is a coordination complex of gold. Like the dimethyl sulfide analog, this compound is used as a convenient entry point to gold chemistry. The tetrahydrothiophene ligand is labile and is readily substituted with other stronger ligands.

Preparation[]

This compound is not commonly available commercially. It may be prepared by the reaction of tetrachloroauric acid with tetrahydrothiophene:[1]

HAuCl4 + 2 SC4H8 + H2O → AuCl(SC4H8) + OSC4H8 + 3 HCl

The complex adopts a linear coordination geometry, which is typical of most gold(I) compounds. It crystallizes in the orthorhombic space group Pmc21 with a = 6.540(1) Å, b = 8.192(1) Å, c = 12.794(3) Å with Z = 4 formula units per unit cell. The bromide congener is isostructural.[2]

It is somewhat less thermally labile compared to (Me2S)AuCl, but is still sensitive to temperature and light.

References[]

  1. ^ Uson, R.; Laguna, A.; Laguna, M.; Briggs, D. A.; Murray, H. H.; Fackler., J. P. (2007). "(Tetrahydrothiophene)Gold(I) or Gold(III) Complexes". Inorg. Synth. 26: 85–91. doi:10.1002/9780470132579.ch17.
  2. ^ Ahrland, Sten; Dreisch, Klaus; Norén, Bertil; Oskarsson, Ake (1993). "Metal-metal interactions in chain compounds of gold(I): syntheses and crystal structures of chlorotetrahydrothiophenegold(I), bromotetrahydrothiophenegold(I) and iodotetrahydroselenophenegold(I)". Materials Chemistry and Physics. 35 (3–4): 281–289. doi:10.1016/0254-0584(93)90144-B.
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