642932-83-0Relevant academic research and scientific papers
Synthetic routes and structures of [Rh(Hdmg){ClZn(C2H 5OH)dmg}(PPh3)Cl], [Rh(Hdmg)2(PPh) 2]+[Rh(Hdmg)2(Cl)2] -·2CH3OH, and [Rh(Hdmg)2(PPh3)I]· 0.5C2H5OH complexes
Moszner, Monika,Ciunik, Zbigniew,Zió?kowski, Józef J.
, p. 3195 - 3203 (2003)
Treatment of [Rh(Hdmg)2(PPh3)Cl] with zinc amalgam afforded a heterobimetallic compound [Rh(Hdmg)(ClZndmg)(PPh3)Cl] (1a) (Hdmg=monoanion of dimethylglyoxime). Crystallization of (1a) from a CHCl 3/C2H5OH mixture led to the formation of [Rh(Hdmg){ClZn(C2H5OH)dmg}(PPh3)Cl] (1). The X-ray crystal structure of 1 revealed that the ethanol molecule was built into the complex molecule through the oxygen atom coordinated to the zinc cation and a hydrogen bond involving one of the chloride ligands. Reduction of [Rh(Hdmg)2(PPh3)Cl] with Zn/Hg, followed by treatment with a CHCl3/CH3OH mixture, gave the complex salt [Rh(Hdmg)2(PPh3)2]+[Rh(Hdmg) 2(Cl)2]- · 2CH3OH (2). The X-ray structure of 2 showed crystals formed by cations [Rh(Hdmg) 2(PPh3)2]+ and anions [Rh(Hdmg) 2Cl2]-. The anion binds one CH3OH molecule through a hydrogen bond involving the adjacent oxime atom. Reduction of [Rh(Hdmg)2(PPh3)Cl] with zinc amalgam in the presence of CH3I led to the compound [Rh(Hdmg)2(PPh3)I] · 0.5C2H5OH (3), which was characterized by X-ray crystallography.
