Syntheses, characterization and structures of CpFe(CO)(μ-I)(μ-dppm)M(CO)4 (M=Cr, Mo, W)

Hsu, Ming‐Ann; Yeh, Wen-Yann; Chiang, Michael Y.

doi:10.1016/s0022-328x(97)00504-4

Cited by 7 publications

(7 citation statements)

References 33 publications

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“…Crystallographic details for the Ru/Pd complex 10 and the Fe/Pd complex 11 are available in the Supporting Information. All of these complexes show structures similar to those of I-bridged complexes previously reported, ,, where the coordination about the iron and ruthenium atoms retained a piano-stool configuration and the coordination about the Pt and Pd atoms is distorted square planar.…”

Section: Resultssupporting

confidence: 83%

“…NMR Data. The 31 P NMR spectra of the iron complexes 9 , 11 , and 13 showed features for the phosphine ligands similar to those previously reported for CpFe(CO)(μ-I)(μ-dppm)M(CO) 4 (M = Cr, Mo, W) . A pair of doublets is always observed, with the downfield resonance corresponding to the Fe-bound phosphorus, while the upfield doublet is assigned to phosphorus coordinated to the second metal (Pt, Pd, or Au).…”

Section: Resultssupporting

confidence: 82%

“…Selected 1 H NMR data for 4 − 13 are reported in Table . The spectra for the iron complexes 9 , 11 , and 13 exhibit chemical shift values similar to those previously published …”

Section: Resultssupporting

confidence: 77%

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Electronic Interactions in Iron- and Ruthenium-Containing Heterobimetallic Complexes: Structural and Spectroscopic Investigations

et al. 2007

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The heterobimetallic Ru complexes Cp(CO)Ru(μ-I)(μ-dppm)PtI2 (8), Cp(CO)Ru(μ-I)(μ-dppm)PdI2 (10), and Cp(CO)RuI(μ-dppm)AuI (12) and their isoelectronic Fe analogues Cp(CO)Fe(μ-I)(μ-dppm)PtI2 (9), Cp(CO)Fe(μ-I)(μ-dppm)PdI2 (11), and Cp(CO)FeI(μ-dppm)AuI (13) were prepared by the reactions of Cp(CO)M(κ1-dppm)I (6, M = Ru; 7, M = Fe) with Pt(COD)I2, Pd(COD)I2, and AuI, respectively. All six complexes were characterized by cyclic voltammetry, IR, UV, and NMR (1H and 31P) spectroscopy, and elemental analysis. The structures of the I-bridged compounds 8−11 were determined by X-ray crystallography. Electronic interaction between the two metals is significant for the iodide-bridged compounds 8−11, as evidenced by the variation in their carbonyl stretching frequencies and UV−vis spectra, as well as in the shifts of their redox potentials in comparison to the shifts for mononuclear model compounds. In contrast, compounds 12 and 13, which have only dppm bridges, exhibit limited interactions between the two metals.

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Section: Resultssupporting

confidence: 83%

Section: Resultssupporting

confidence: 82%

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Electronic Interactions in Iron- and Ruthenium-Containing Heterobimetallic Complexes: Structural and Spectroscopic Investigations

et al. 2007

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“…Again, the subsequent steps to compound 2- 13 CO have been described previously for the unlabeled compound and will not be discussed here. IR stretching frequencies for the labeled compounds were determined by comparison to the reported values for the unlabeled compounds and are available in the Supporting Information (Table S1). ,, …”

Section: Resultsmentioning

confidence: 99%

“…IR stretching frequencies for the labeled compounds were determined by comparison to the reported values for the unlabeled compounds and are available in the Supporting Information (Table S1). 70,81,82 Electrochemical Oxidation of Methanol with Heterobimetallic Complexes 1−6. As previously described, 59,60,83 cyclic voltammetry in the presence of methanol is a convenient way to screen for catalytic activity toward methanol electrooxidation.…”

Section: ■ Introductionmentioning

confidence: 99%

Iron and Ruthenium Heterobimetallic Carbonyl Complexes as Electrocatalysts for Alcohol Oxidation: Electrochemical and Mechanistic Studies

2011

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Carbonyl-containing Ru and Fe heterobimetallic complexes were prepared and tested as electrocatalysts for the oxidation of methanol and ethanol. GC analysis of the electrolyte solution during bulk electrolysis indicated that CpRu(CO)(μ-I)(μ-dppm)PtI2 (1), CpFe(CO)(μ-I)(μ-dppm)PtI2 (2), and CpRu(CO)(μ-I)(μ-dppm)PdI2 (3) were catalysts for the electrooxidation of methanol and ethanol, while CpFe(CO)(μ-I)(μ-dppm)PdI2 (4), CpRu(CO)I(μ-dppm)AuI (5), and CpFe(CO)I(μ-dppm)AuI (6) did not function as catalysts. The oxidation of methanol resulted in two- and four-electron oxidation to formaldehyde and formic acid, respectively, followed by condensation with unreacted methanol to yield dimethoxymethane and methyl formate as the observed products. The oxidation of ethanol afforded 1,1′-diethoxyethane as a result of two-electron oxidation to acetaldehyde and condensation with excess ethanol. FTIR analysis of the headspace gases during the electrochemical oxidation of methanol indicated formation of CO2. Isotopic labeling experiments demonstrated that the CO2 resulted from oxidation of the CO ligand instead of complete oxidation of CH3OH.

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Homo and heteromultimetallic complexes containing a group 8 transition metal and μ-diphosphine bridging ligands involved in anticancer research: A review

Roufosse,

Serbu,

Marschner

et al. 2024

European Journal of Medicinal Chemistry

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Syntheses, characterization and structures of CpFe(CO)(μ-I)(μ-dppm)M(CO)4 (M=Cr, Mo, W)

Cited by 7 publications

References 33 publications

Electronic Interactions in Iron- and Ruthenium-Containing Heterobimetallic Complexes: Structural and Spectroscopic Investigations

Electronic Interactions in Iron- and Ruthenium-Containing Heterobimetallic Complexes: Structural and Spectroscopic Investigations

Iron and Ruthenium Heterobimetallic Carbonyl Complexes as Electrocatalysts for Alcohol Oxidation: Electrochemical and Mechanistic Studies

Homo and heteromultimetallic complexes containing a group 8 transition metal and μ-diphosphine bridging ligands involved in anticancer research: A review

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