Complex formation equilibria cyano complexes

Cyanide binding to the hydroxo complex of ferric hemes has been extensively studied in micellar solutions [15-17, 22, 34]. The binding of cyanide is found to be highly dependent on the pH and is maximum at pH 9.6. Optical spectral studies show a distinct isosbestic point at 412 nm for the formation of bis-cyano hemin in SDS from the hydroxo heme. The overall equilibrium is ... 

NOx formation occurs by a complex reaction network of over 100 free-radical reactions, and is highly dependent on the form of nitrogen in the waste. Nitro-compounds form N02 first, and then NO, approaching equilibrium from the oxidized side. Amines form cyano intermediates on their way to NO, approaching equilibrium from the reduced side. Using air as the oxidant, NO also forms from N2 and 02. This last is known as thermal NO. ... 

Cyanosilanes can be isocyanide sources since a tautomeric equilibrium exists between cyanosilanes and the corresponding isocyanides. The equilibrium largely favors the cyano tautomer. The use of such dilute isocyanide donors realizes efficient Ti(n)- and Ni(0)-catalyzed cyclizations of enynes to iminocyclopentenes via metallacyclopentene intermediates (Scheme 19).266,266 266b Treatment of zirconacyclopentanes and -pentenes with Me3SiCN provides zirconocene-imine complexes, which serve for carbon-carbon bond formation with various unsaturated bonds.267... 

Recently, the formation, structure, equilibrium, and kinetics of a family of cyano compounds containing a direct and not supported by ligands platinum-thallium metal-metal bond have been reported. The complexes are synthesized according to the reaction ... 

Rates and equilibrium constants for the formation of mixed dinuclear iron and cobalt complexes are also reported from stopped-flow studies of the reactions between /rflm-[Co(en)2(S03)(H20)]+ and [Fe(CN)5NO] and [Fe(CN)e] ions. These reactions proceed by substitution of the labile water molecule in a trans position to the /S-bonded sulphite ion to give cyano-bridged products such as [(ON)(NC)4FeCNCo(en)2S03]. The equilibrium and rate constants for the following reaction were also determined in alkaline solution ... 

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