Substitution reactions of cis-dichlorobis (2,2′-biquinoline)rhodium(III) chloride

Add time:07/18/2019    Source:sciencedirect.com

The substitution reactions of the 2,2′-biquinoline (biq) complex cis-[Rh(biq)2Cl2]Cl with Br−, I−, OH−, NH3, pyridine (py), CN−, NO2−, SCN−, ethylenediamine (en), 2,2′-bipyridine (bipy) and dimethylglyoxime (dmgmH2) have been investigated. The new complexes cis-[Rh(biq)2ICl]I, cis-[Rh(biq)2(OH)2]PF6 · 3H2O, cis-[Rh(biq)2(NH3)Cl](PF6)2 · 2H2O, cis-[Rh(biq)2(py)Cl]Cl2, [Rh(biq)(CN)3]n (n > 1), [Rh(biq)(NO2)(H2O)Cl2], cis-[Rh(biq)2(SCN)2]SCN · 2.5H2O and [Rh(biq)2(dmgm)]Cl · 3H2O have been characterized by elemental analysis, conductivity measurements, IR, electronic absorption and 1H NMR spectra. However, the reactions of cis-[Rh(biq)2Cl2]Cl with Br−, en and bipy afforded the known complexes cis-[Rh(biq)2Br2]Br, cis-[Rh(en)2Cl2]Cl and cis-[Rh(bipy)2 Cl2]Cl, respectively.

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