Hydroformylation activity of multinuclear rhodium complexes coordinated to dendritic iminopyridyl and iminophosphine scaffolds

Antonels, Nathan C.; Moss, John R.; Smith, Gregory S.

doi:10.1016/j.jorganchem.2010.10.048

Cited by 22 publications

(3 citation statements)

References 27 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Smith and co-workers have supported Rh and Ir metals on poly(propyleneimine) dendrimer scaffolds. [33,34] Furthermore, Smith's group showed that Rh-based metallodendrimers were able to catalyze the hydroformylation of 1-octene with the same selectivity as their mononuclear analogues. [34] Herein, we envisioned a tunable, multifunctional adsorbent/catalyst able to both capture CO 2 and subsequently convert it to formic acid in an aqueous environment (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

“…[33,34] Furthermore, Smith's group showed that Rh-based metallodendrimers were able to catalyze the hydroformylation of 1-octene with the same selectivity as their mononuclear analogues. [34] Herein, we envisioned a tunable, multifunctional adsorbent/catalyst able to both capture CO 2 and subsequently convert it to formic acid in an aqueous environment (Scheme 1). A highly branched alkylamine polymer (PEI) was essential as the catalyst backbone because it provided a multitude of amines for CO 2 capture, formate stabilization, and hydrophilic character.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

McNamara

Hicks

2014

ChemSusChem

View full text Add to dashboard Cite

Tunable, multifunctional materials able to capture CO2 and subsequently catalyze its conversion to formic acid were synthesized by the modification of branched polyethyleneimine (PEI) with an iminophosphine ligand coordinated to an Ir precatalyst. The molecular weight of the PEI backbone was an important component for material stability and catalytic activity, which were inversely related. The amine functionalities on PEI served three roles: 1) primary amines were used to tether the ligand and precatalyst, 2) amines were used to capture CO2 , and 3) amines served as a base for formate stabilization during catalysis. Ligand studies on imine and phosphine based ligands showed that a bidentate iminophosphine ligand resulted in the highest catalytic activity. X-ray photoelectron spectroscopy revealed that an increase in Ir 4f binding energy led to an increase in catalytic activity, which suggests that the electronics of the metal center play a significant role in catalysis. Catalyst loading studies revealed that there is a critical balance between free amines and ligand-metal sites that must be reached to optimize catalytic activity. Thus, it was found that the CO2 capture and conversion abilities of these materials could be optimized for reaction conditions by tuning the structure of the PEI-tethered materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

McNamara

Hicks

2014

ChemSusChem

View full text Add to dashboard Cite

show abstract

“…12). 52 The multinuclear Rh( i ) complexes were investigated in the hydroformylation of 1-octene, achieving higher catalytic activity compared with analogous mononuclear Rh complexes. They also proposed the hydroformylation of 1-octene in the aqueous phase using hydrophilic sulfonate salicylaldimine dendrimers binding [Rh(COD)Cl] 2 .…”

Section: Inorganic Oxide-anchored Rh Complexesmentioning

confidence: 99%

Recent development towards alkene hydroformylation catalysts integrating traditional homo- and heterogeneous catalysis

Zhao

Wang

et al. 2022

Catal. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Metal‐Containing Polymers

Abd‐El‐Aziz

2012

Encyclopedia of Polymer Science and Technology

View full text Add to dashboard Cite

show abstract

Hydroformylation activity of multinuclear rhodium complexes coordinated to dendritic iminopyridyl and iminophosphine scaffolds

Cited by 22 publications

References 27 publications

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

Recent development towards alkene hydroformylation catalysts integrating traditional homo- and heterogeneous catalysis

Metal‐Containing Polymers

Contact Info

Product

Resources

About

Hydroformylation activity of multinuclear rhodium complexes coordinated to dendritic iminopyridyl and iminophosphine scaffolds

Cited by 22 publications

References 27 publications

CO2 Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

CO2 Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

Recent development towards alkene hydroformylation catalysts integrating traditional homo- and heterogeneous catalysis

Metal‐Containing Polymers

Contact Info

Product

Resources

About

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent

CO₂ Capture and Conversion with a Multifunctional Polyethyleneimine‐Tethered Iminophosphine Iridium Catalyst/Adsorbent