Hexol

This article is about an inorganic cobalt complex cation. For organic compounds with six hydroxyls, see Alcohol.
Hexol
Names
IUPAC name
Tris[tetrammine-μ-dihydroxocobalt(III)]cobalt (III) ion
Identifiers
3D model (JSmol)
  • InChI=1S/4Co.12H3N.3H2O4S.6HO/c;;;;;;;;;;;;;;;;3*1-5(2,3)4;;;;;;/h;;;;12*1H3;3*(H2,1,2,3,4);6*1H/q-3;3*+1;;;;;;;;;;;;;;;;6*+1/p-6
    Key: WZHHSLNBXUIBMY-UHFFFAOYSA-H
  • O=S(=O)([O-])[O-].[NH3+][Co-3]0([NH3+])([NH3+])([NH3+])[OH+][Co-3]12([OH+]0)([OH+][Co-3]([NH3+])([NH3+])([NH3+])([NH3+])[OH+]1)[OH+][Co-3]([NH3+])([NH3+])([NH3+])([NH3+])[OH+]2.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-]
Properties
Co4H42N12O18S3
Molar mass 830.31 g·mol−1
Sparingly soluble in water [1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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In chemistry, hexol is a cation with formula {[Co(NH3)4(OH)2]3Co}6+ — a coordination complex consisting of four cobalt cations in oxidation state +3, twelve ammonia molecules NH
3, and six hydroxy anions HO−
, with a net charge of +6. The hydroxy groups act as bridges between the central cobalt atom and the other three, which carry the ammonia ligands.

Salts of hexol, such as the sulfate {[Co(NH3)4(OH)2]3Co}(SO4)3(H2O)x, are of historical significance as the first synthetic non-carbon-containing chiral compounds.[2] [3]

  1. ^ Cite error: The named reference InorgSyn was invoked but never defined (see the help page).
  2. ^ Miessler, G. L. and Tarr, D. A. Inorganic Chemistry, 3rd ed., Pearson/Prentice Hall publisher, ISBN 0-13-035471-6.
  3. ^ Ernst, Karl-Heinz; Berke, Heinz (2011). "Optical Activity and Alfred Werner's Coordination Chemistry". Chirality. 23 (3): 187–189. doi:10.1002/chir.20912. PMID 20928897.