Montmorillonite face surfaces associated Cr(bpy)/sub 3//sup 3 +/ monitored electrochemically

Journal Article · Wed Nov 16 23:00:00 EST 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100334a035· OSTI ID:6186676

Fitch, A; Lavy-Feder, A; Lee, S A; Kirsh, M T

The assembly of Cr(bpy)/sub 3//sup 3 +/ (bpy = bipyridine) into montmorillonite face surface holes can be monitored at clay modified electrodes. Close packing onto the surface occurs after all charge sites are occupied. Close packing results in enantiomeric and valence selectivity. The diffusion coefficient for Cr(bpy)/sub 3//sup 3 +/ in montmorillonite is 7 /times/ 10/sup /minus/12/ cm/sup 2//s. The partition coefficient into the clay is 9.4 /times/ 10/sup 3/. Isopotential points in the cyclic voltammograms demonstrate a rate-limiting hole association of Cr(bpy)/sub 3//sup 3 +/.

• Research Organization: Loyola Univ. of Chicago, IL (USA)
• OSTI ID: 6186676
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:23; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
AZINES
BIPYRIDINES
CHEMICAL PREPARATION
CHROMIUM COMPLEXES
CLAYS
COMPLEXES
DATA
DIFFUSION
ELECTRODES
ENANTIOMORPHS
EXPERIMENTAL DATA
FILMS
HETEROCYCLIC COMPOUNDS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MONTMORILLONITE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
SURFACE PROPERTIES
SYNTHESIS
THIN FILMS
TRANSITION ELEMENT COMPLEXES
VOLTAMETRY