Iridium(I)- and Rhodium(I)-Olefin Complexes Containing an alpha-Diimine Supporting Ligand

Kovach James; Golisz Suzanne R.; Brennessel William W.Jones William D.

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Iridium(I)- and Rhodium(I)-Olefin Complexes Containing an alpha-Diimine Supporting Ligand

机译：Iridium(I)- and Rhodium(I)-Olefin Complexes Containing an alpha-Diimine Supporting Ligand

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Iridium(I) complexes of the type IrX(olefin)(alpha-diimine) (alpha-diimine = 1,4-bis(2,6-xylyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; X = Cl, I, Me, O2CCF3; olefin = ethylene, cyclooctene (COE)) were synthesized from the readily available precursor IrCl(COE)(2)(2). These complexes display unusual H-1 NMR spectra and have large UV- vis extinction coefficients. NOESY and HSQC NMR experiments were used to provide rigorous NMR spectral assignments, and IrCl(C2H4)(alpha-diimine), 1, and IrCl(COE)(alpha- diimine), 4, were structurally characterized by X-ray crystallography. The related rhodium complex RhCl(alpha-diimine)2, 6, was also synthesized and characterized by NMR and X-ray crystallography. 6 was observed to be in equilibrium with RhCl(C2H4)(alpha-diimine), 7, under an ethylene atmosphere.

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《Organometallics》 |2022年第22期|3167-3174|共8页
作者
Kovach James; Golisz Suzanne R.; Brennessel William W.Jones William D.;
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Univ Rochester;

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正文语种英语
中图分类元素有机化合物;
关键词
C-H ACTIVATION; STERICALLY DEMANDING LIGANDS; TRANSITION-METAL-COMPLEXES; CHLORIDE COMPLEXES; BOND ACTIVATION; PHOTOCHEMISTRY; CLEAVAGE; DIOXYGEN; BENZENE;

Iridium(I)- and Rhodium(I)-Olefin Complexes Containing an alpha-Diimine Supporting Ligand

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