Synthesis, structures, and characterization of benzildiimine complexes of rhodium(III) and iridium(I) |
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| Authors: | Nadera Haque |
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| Institution: | Munich/Germany, Ludwig-Maximilians University, Department of Chemistry and Biochemistry, Germany |
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| Abstract: | The reactions of trans-(PPh3)2M(CO)Cl] (M = Rh and Ir) with benzildiimine (H2BDI = 2) derived from benzil-bis(trimethylsilyl)diimine (Si2BDI) (1) in a 1:2 and 1:1 molar ratio afforded the cationic bis-benzildiiminato complexes Rh(PPh3)2(HBDI)2]Cl (3) and the mono-benzildiimine complex Ir(PPh3)2(CO)(H2BDI)]Cl (4), respectively. Both complexes are fully characterized using IR, FAB-MS, NMR spectroscopy and elemental analysis. The single crystal X-ray structure analysis reveals a distorted octahedral coordination geometry for the Rh(III) in 3 and a highly distorted square pyramidal geometry for Ir(I) in 4. In addition, the solid-state structure of Si2BDI is reported here for the first time showing the substituents highly twisted because of steric reasons. |
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| Keywords: | Benzil-bis(trimethylsilyl)diimine Benzildiimine Crystal structures Rhodium Iridium Triphenylphosphine |
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