Crystal structure of an iridium(III) complex of the [C(dppm)2 ] PCP pincer ligand system and its conjugate CH acid form

Acta Crystallographica. Section E, Crystallographic Communications
Christian ReitsamerPaul Peringer

Abstract

After the successful creation of the newly designed PCP carbodi-phospho-rane (CDP) ligand [Reitsamer et al. (2012 ▸). Dalton Trans.41, 3503-3514; Stallinger et al. (2007 ▸). Chem. Commun. pp. 510-512], the treatment of this PCP pincer system with the transition metal iridium and further the analysis of the structures by single-crystal diffraction and by NMR spectroscopy were of major inter-est. Two different iridium complexes, namely (bis-{[(di-phenyl-phosphan-yl)meth-yl]di-phenyl-phosphanyl-idene}methane-κ3P,C,P')carbonyl-chlorido-hydridoiridium(III) chloride di-chloro-methane tris-olvate, [IrIII(CO){C(dppm)2-κ3P,C,P'}ClH]Cl·3CH2Cl2 (1) and the closely related (bis-{[(di-phenyl-phosphan-yl)meth-yl]di-phenyl-phosphanyl-idene}methanide(1+)-κ3P,C,P')carbonyl-chlorido-hy-dridoirid-ium(III) dichloride-hydro-chloric acid-water (1/2/5.5), [IrIII(CO){CH(dppm)2-κ3P,C,P')ClH]Cl}2 (2), have been designed and both complexes show a slightly distorted octa-hedral coordinated IrIII centre. The PCP pincer ligand system is arranged in a meridional manner, the CO ligand is located trans to the central PCP carbon and a hydride and chloride are located perpendicular above and below the P2C2 plane. With an Ir-CCDP distance of 2.157 (5) Å, an Ir-CO...Continue Reading

References

Nov 1, 2006·Angewandte Chemie·Ralf TonnerGernot Frenking
Jan 26, 2007·Chemical Communications : Chem Comm·Silvia StallingerPaul Peringer
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
Mar 12, 2011·Chemical Reviews·Jongwook ChoiAlan S Goldman
Feb 11, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Christian ReitsamerPaul Peringer
May 30, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Wolfgang LeisHermann A Mayer

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Citations

Jun 29, 2018·Acta Crystallographica. Section E, Crystallographic Communications·Gabriel Julian PartlPaul Peringer

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Methods Mentioned

BETA
NMR

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