Enhanced H+ transport activity of tonoplast vesicles isolated from roots of salt-tolerant mutant of wheat under NaCl stress

For the complex with no uncoordinated atoms, it will decompose under the co ndition of heating because of the drop of the terminal carbonyl of the rhod ium atom. However, the complexes that we synthesized can form stable tetrad entate complexes in the condition of heating and no protection of CO by int ramolecular substitution reaction, that is uncoordinated oxygen atoms subst itute the two terminal carbonyls of the rhodium atom. Because this reaction is reversible, the complex can recover to cis-dicarbonyl rhodium complex a fter dealing with CO. Thus the decomposing of the complex for the drop of t he terminal carbonyl if avoided and its stability is enhanced. So the struc ture and the reversible intramolecular substitution reaction of the complex studied here provide referable information to increasing the catalyst stab ility used in the carbonylation of methanol to acetic acid, especially the catalyst stability while separating it from solution shea of protection of CO, including design of this kind of the catalyst structure.