|Title||Rhodium-hydrido-benzylamine-triphenylphosphine complexes: Solid-state and solution structures and implications in catalyzed imine hydrogenation|
|Publication Type||Journal Article|
|Year of Publication||2004|
|Authors||Marcazzan, P, Patrick, BO, James, BR|
|Type of Article||Article|
|Keywords||CATIONIC COMPLEXES, CRYSTAL, DIHYDRIDO COMPLEXES, LIGANDS, metals, X-RAY|
The complexes cis, trans, cis-[Rh(H)(2)(PPh3)(2)(NH2CH2Ph)(2)]PF6 (1) and cis-[Rh(PPh3)(2)(NH2CH2Ph)(2)]PF6 (2) are characterized by X-ray crystallography; the structures are maintained in CH2Cl2 where the species are in equilibrium under H-2. In MeOH and in acetone, loss of amine and/or H-2 can occur. Traces of 1 and 2 are present after a Rh-catalyzed H-2-hydrogenation of PhCH=NCH2Ph in MeOH, where the amine is generated by hydrolysis of the imine substrate through adventitious water. The findings are relevant to catalyst poisoning in the catalytic process.
|URL||<Go to ISI>://000224489100049|