Cationic rhodium(III) bisdimethylglyoximates with water and triphenylphosphine axial ligands
摘要:
Preparations of [Rh(Hdmg)(2)(H2O)(2)]ClO4 (1) (Hdmg=dimethylgyoximate) from [Rh(H2O)(6)](ClO4)(3) and dimethylglyoxime and of [Rh(Hdmg)(2)(PPh3)(2)]ClO4 (2) from 1 and PPh3 are described. 1 crystallizes in the C2/c space group with a=14.910(3), b=6.058(1), c=18.617(4) Angstrom, beta=107.649(8)degrees Z=4. The structure was refined up to R=0.021 for 1849 reflections. The IR and NMR spectra and electrochemical behavior of 1 and 2 are discussed and compared with other rhodoximes. Three polarographic and CV processes can be detected for 2, the first two, respectively to Rh(Il) and Rh(I), being followed by fast reactions.
Cationic rhodium(III) bisdimethylglyoximates with water and triphenylphosphine axial ligands
摘要:
Preparations of [Rh(Hdmg)(2)(H2O)(2)]ClO4 (1) (Hdmg=dimethylgyoximate) from [Rh(H2O)(6)](ClO4)(3) and dimethylglyoxime and of [Rh(Hdmg)(2)(PPh3)(2)]ClO4 (2) from 1 and PPh3 are described. 1 crystallizes in the C2/c space group with a=14.910(3), b=6.058(1), c=18.617(4) Angstrom, beta=107.649(8)degrees Z=4. The structure was refined up to R=0.021 for 1849 reflections. The IR and NMR spectra and electrochemical behavior of 1 and 2 are discussed and compared with other rhodoximes. Three polarographic and CV processes can be detected for 2, the first two, respectively to Rh(Il) and Rh(I), being followed by fast reactions.