Organochromium(III) complexes derived from nitriles
Reactions of chromium(II) perchlorate with acidified solutions of hydrogen peroxide in water containing modest concentrations of an organic nitrile (RCN) give rise to the cationic organochromium complexes CrCH/sub 2/CN/sup 2 +/ (RCN = acetonitrile), CrCH/sub 2/CH/sub 2/CN/sup 2 +/ (propionitrile), and CrCH/sub 2/CH(CH/sub 3/)CN/sup 2 +/ (isobutyronitrile). These cyanoalkyl complexes are quite resistant to decomposition in aqueous perchloric acid and can be separated by ion-exchange chromatography. Their composition was established by identification of the organic bromide formed by reaction with aqueous bromine. The complexes react with Hg/sup 2 +/ first to form the corresponding HgR/sup +/ and then (if excess organochromium is present) HgR/sub 2/. Kinetic studies for the first stage of this reaction were carried out. The data are consistent with a bimolecular electrophilic substitution process (S/sub E/2 mechanism).
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6418080
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 20:3; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHROMIUM COMPLEXES
COMPLEXES
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
MERCURY COMPOUNDS
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES