Organochromium(III) complexes derived from nitriles

Journal Article · Sun Mar 01 04:00:00 EST 1981 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic50217a050· OSTI ID:6418080

Funke, L A; Espenson, J H

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

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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