1
|
Jia X, Nedzbala HS, Bottum SR, Cahoon JF, Concepcion JJ, Donley CL, Gang A, Han Q, Hazari N, Kessinger MC, Lockett MR, Mayer JM, Mercado BQ, Meyer GJ, Pearce AJ, Rooney CL, Sampaio RN, Shang B, Wang H. Synthesis and Surface Attachment of Molecular Re(I) Complexes Supported by Functionalized Bipyridyl Ligands. Inorg Chem 2023; 62:2359-2375. [PMID: 36693077 DOI: 10.1021/acs.inorgchem.2c04137] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Eleven 2,2'-bipyridine (bpy) ligands functionalized with attachment groups for covalent immobilization on silicon surfaces were prepared. Five of the ligands feature silatrane functional groups for attachment to metal oxide coatings on the silicon surfaces, while six contain either alkene or alkyne functional groups for attachment to hydrogen-terminated silicon surfaces. The bpy ligands were coordinated to Re(CO)5Cl to form complexes of the type Re(bpy)(CO)3Cl, which are related to known catalysts for CO2 reduction. Six of the new complexes were characterized using X-ray crystallography. As proof of principle, four molecular Re complexes were immobilized on either a thin layer of TiO2 on silicon or hydrogen-terminated silicon. The surface-immobilized complexes were characterized using X-ray photoelectron spectroscopy, IR spectroscopy, and cyclic voltammetry (CV) in the dark and for one representative example in the light. The CO stretching frequencies of the attached complexes were similar to those of the pure molecular complexes, but the CVs were less analogous. For two of the complexes, comparison of the electrocatalytic CO2 reduction performance showed lower CO Faradaic efficiencies for the immobilized complexes than the same complex in solution under similar conditions. In particular, a complex containing a silatrane linked to bpy with an amide linker showed poor catalytic performance and control experiments suggest that amide linkers in conjugation with a redox-active ligand are not stable under highly reducing conditions and alkyl linkers are more stable. A conclusion of this work is that understanding the behavior of molecular Re catalysts attached to semiconducting silicon is more complicated than related complexes, which have previously been immobilized on metallic electrodes.
Collapse
Affiliation(s)
- Xiaofan Jia
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Hannah S Nedzbala
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Samuel R Bottum
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - James F Cahoon
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Javier J Concepcion
- Chemistry Division, Energy & Photon Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Carrie L Donley
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Albert Gang
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Qi Han
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Matthew C Kessinger
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Matthew R Lockett
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - James M Mayer
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Brandon Q Mercado
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Gerald J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Adam J Pearce
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States
| | - Conor L Rooney
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States.,Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Renato N Sampaio
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Bo Shang
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States.,Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Hailiang Wang
- The Department of Chemistry, Yale University, P. O. Box 208107, New Haven, Connecticut 06520, United States.,Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
| |
Collapse
|
2
|
Nepal P, Kalapugama S, Shevlin M, Naber JR, Campeau LC, Pezzetta C, Carlone A, Cobley CJ, Bergens SH. Polycationic Rh–JosiPhos Polymers Supported on Phosphotungstic Acid/Al2O3 by Multiple Electrostatic Attractions. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prabin Nepal
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton T6G 2G2, Alberta, Canada
| | - Suneth Kalapugama
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton T6G 2G2, Alberta, Canada
| | - Michael Shevlin
- Process Research and Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - John R. Naber
- JRN - Process Research and Development, MRL, Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, New Jersey 07033, United States
| | - Louis-Charles Campeau
- Process Research and Development, MRL, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, United States
| | - Cristofer Pezzetta
- Dr. Reddy’s Laboratories (EU), 410 Science Park, Milton Road, Cambridge CB4 0PE, United Kingdom
| | - Armando Carlone
- Dr. Reddy’s Laboratories (EU), 410 Science Park, Milton Road, Cambridge CB4 0PE, United Kingdom
- Department of Physical and Chemical Sciences, Università degli Studi dell’Aquila, Via Vetoio, 67100 L’Aquila, Italy
| | - Christopher J. Cobley
- Dr. Reddy’s Laboratories (EU), 410 Science Park, Milton Road, Cambridge CB4 0PE, United Kingdom
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton T6G 2G2, Alberta, Canada
| |
Collapse
|
3
|
Machado IV, Dos Santos JRN, Januario MAP, Corrêa AG. Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions. ULTRASONICS SONOCHEMISTRY 2021; 78:105704. [PMID: 34454180 PMCID: PMC8406036 DOI: 10.1016/j.ultsonch.2021.105704] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/24/2021] [Accepted: 07/29/2021] [Indexed: 06/06/2023]
Abstract
Ultrasound is an essential technique to improve organic synthesis from the point of view of green chemistry, as it can promote better yields and selectivities, in addition to shorter reaction times when compared to the conventional methods. Heterogeneous catalysis is another pillar of sustainable chemistry being the recycling and reuse of the catalysts one of its great advantage. In the other hand, multicomponent reactions provide the synthesis of structurally diverse compounds, in a one-pot fashion, without isolation and purification of intermediates. Thus, the combination of these protocols has proved to be a powerful tool to obtain biologically active organic compounds with lower costs, time and energy consumption. Herein, we provide a comprehensive overview of advances on methods of organic synthesis that have been reported over the past ten years with focus on ultrasound-assisted multicomponent reactions under heterogeneous catalysis. In particular, we present pharmacologically important N- and O-heterocyclic compounds, considering their synthetic methods using green solvents, and catalyst recycling.
Collapse
Affiliation(s)
- Ingrid V Machado
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Jhonathan R N Dos Santos
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Marcelo A P Januario
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Arlene G Corrêa
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil.
| |
Collapse
|
6
|
Li F, MacFarlane DR, Zhang J. Recent advances in the nanoengineering of electrocatalysts for CO 2 reduction. NANOSCALE 2018; 10:6235-6260. [PMID: 29569672 DOI: 10.1039/c7nr09620h] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Emissions of CO2 from fossil fuel combustion and industrial processes have been regarded as the dominant cause of global warming. Electrochemical CO2 reduction (ECR), ideally in aqueous media, could potentially solve this problem by the storage of energy from renewable sources in the form of chemical energy in fuels or value-added chemicals in a sustainable manner. However, because of the sluggish reaction kinetics of the ECR, efficient, selective, and durable electrocatalysts are required to increase the rate this reaction. Despite considerable progress in using bulk metallic electrodes for catalyzing the ECR, greater efforts are still needed to tackle this grand challenge. In this Review, we highlight recent progress in using nanoengineering strategies to promote the electrocatalysts for the ECR. Through these approaches, considerable improvements in catalytic performance have been achieved. An outlook of future developments in applying and optimizing these strategies is also proposed.
Collapse
Affiliation(s)
- Fengwang Li
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry, Monash University, Victoria 3800, Australia.
| | - Douglas R MacFarlane
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry, Monash University, Victoria 3800, Australia.
| | - Jie Zhang
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry, Monash University, Victoria 3800, Australia.
| |
Collapse
|