Abstract
The reaction of [{Rh(L 2)Cl}2] (L 2 cyclo-octa-1,5-diene (COD), norbornadiene (NBD)) and 3,4-diaminotoluene (dat), 1,2-diaminobenzene (daphen) or 2,3-diaminopyridine (dapy), irrespective of the stoichiometric ratios employed, gave [Rh 2(COD) 2Cl 2(LL)] or pentacoordinate [Rh(Cl)(NBD)(LL)] when LL dat or daphen, and tetracoordinate [Rh(Cl)(diolefin)(LL)] when LL dapy, bonded through the pyridine nitrogen. Mixtures of [{Rh(CO) 2Cl} 2] and LL(1/1) gave [Rh(CO) 2(LL)][Rh(CO) 2Cl 2] when LL dat, daphen or dapy. In solution, [Rh 2(COD) 2Cl 2(LL)] or [Rh(Cl)(NBD)(LL)] is in equilibrium with the corresponding [Rh(L 2)(LL)] + cations. At low temperature, the cationic species becomes predominant. Dapy is usually monodentate through the pyridine nitrogen if a coordinating anion, such as chlorine, is present. If not, chelate coordination through both amino groups occurs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
