1
|
Rinshad V, Aggarwal M, Clegg JK, Mukherjee PS. Harnessing a Pd 4 Water-Soluble Molecular Capsule as a Size-Selective Catalyst for Targeted Oxidation of Alkyl Aromatics. JACS AU 2024; 4:3238-3247. [PMID: 39211591 PMCID: PMC11350579 DOI: 10.1021/jacsau.4c00539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
Molecular hosts with functional cavities can emulate enzymatic behavior through selective encapsulation of substrates, resulting in high chemo-, regio-, and stereoselective product formation. It is still challenging to synthesize enzyme-mimicking hosts that exhibit a narrow substrate scope that relies upon the recognition of substrates based on the molecular size. Herein, we introduce a Pd4 self-assembled water-soluble molecular capsule [M 4 L 2] (MC) that was formed through the self-assembly of a ligand L (4',4‴'-(1,4-phenylene)bis(1',4'-dihydro-[4,2':6',4″-terpyridine]-3',5'-dicarbonitrile)) with the acceptor cis-[(en)Pd(NO3)2] [en = ethane-1,2-diamine] (M). The molecular capsule MC showed size-selective recognition towards xylene isomers. The redox property of MC was explored for efficient and selective oxidation of one of the alkyl groups of m-xylene and p-xylene to their corresponding toluic acids using molecular O2 as an oxidant upon photoirradiation. Employing host-guest chemistry, we demonstrate the homogeneous catalysis of alkyl aromatics to the corresponding monocarboxylic acids in water under mild conditions. Despite homogeneous catalysis, the products were separated from the reaction mixtures by simple filtration/extraction, and the catalyst was reused. The larger analogues of the alkyl aromatics failed to bind within the MC's hydrophobic cavity, resulting in a lower/negligible reaction outcome. The present study represents a facile approach for selective photo-oxidation of xylene isomers to their corresponding toluic acids in an aqueous medium under mild conditions.
Collapse
Affiliation(s)
- Valiyakath
Abdul Rinshad
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Medha Aggarwal
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Jack K. Clegg
- School
of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Partha Sarathi Mukherjee
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| |
Collapse
|
2
|
Trinodal Self-Penetrating Nets from Reactions of 1,4-Bis(alkoxy)-2,5-bis(3,2’:6’,3’’-terpyridin-4’-yl)benzene Ligands with Cobalt(II) Thiocyanate. CRYSTALS 2019. [DOI: 10.3390/cryst9100529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The tetratopic ligands 1,4-bis(2-ethylbutoxy)-2,5-bis(3,2’:6’,3’’-terpyridin-4’-yl)benzene (1) and 1,4-bis(3-methylbutoxy)-2,5-bis(3,2’:6’,3’’-terpyridin-4’-yl)benzene (2) have been prepared and characterized by 1H and 13C{1H} NMR, IR, and absorption spectroscopies and mass spectrometry. Reactions of 1 and 2 with cobalt(II) thiocyanate under conditions of crystal growth at room temperature result in the formation of [{Co(1)(NCS)2}·MeOH·3CHCl3]n and [{Co(2)(NCS)2}·0.8MeOH·1.8CHCl3]n. Single-crystal X-ray diffraction reveals that each crystal lattice consists of a trinodal self-penetrating (62.84)(64.82)(65.8)2 net. The nodes are defined by two independent cobalt centres and the centroids of two crystallographically independent ligands which are topologically equivalent.
Collapse
|
3
|
Lü J, Perez-Krap C, Trousselet F, Yan Y, Alsmail NH, Karadeniz B, Jacques NM, Lewis W, Blake AJ, Coudert FX, Cao R, Schröder M. Polycatenated 2D Hydrogen-Bonded Binary Supramolecular Organic Frameworks (SOFs) with Enhanced Gas Adsorption and Selectivity. CRYSTAL GROWTH & DESIGN 2018; 18:2555-2562. [PMID: 29651229 PMCID: PMC5890310 DOI: 10.1021/acs.cgd.8b00153] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Indexed: 06/08/2023]
Abstract
Controlled assembly of two-dimensional (2D) supramolecular organic frameworks (SOFs) has been demonstrated through a binary strategy in which 1,4-bis-(4-(3,5-dicyano-2,6-dipyridyl)pyridyl)naphthalene (2), generated in situ by oxidative dehydrogenation of 1,4-bis-(4-(3,5-dicyano-2,6-dipyridyl)dihydropyridyl)naphthalene (1), is coupled in a 1:1 ratio with terphenyl-3,3',4,4'-tetracarboxylic acid (3; to form SOF-8), 5,5'-(anthracene-9,10-diyl)diisophthalic acid (4; to form SOF-9), or 5,5'-bis-(azanediyl)-oxalyl-diisophthalic acid (5; to form SOF-10). Complementary O-H···N hydrogen bonds assemble 2D 63-hcb (honeycomb) subunits that pack as layers in SOF-8 to give a three-dimensional (3D) supramolecular network with parallel channels hosting guest DMF (DMF = N,N'-dimethylformamide) molecules. SOF-9 and SOF-10 feature supramolecular networks of 2D → 3D inclined polycatenation of similar hcb layers as those in SOF-8. Although SOF-8 suffers framework collapse upon guest removal, the polycatenated frameworks of SOF-9 and SOF-10 exhibit excellent chemical and thermal stability, solvent/moisture durability, and permanent porosity. Moreover, their corresponding desolvated (activated) samples SOF-9a and SOF-10a display enhanced adsorption and selectivity for CO2 over N2 and CH4. The structures of these activated compounds are well described by quantum chemistry calculations, which have allowed us to determine their mechanical properties, as well as identify their soft deformation modes and a large number of low-energy vibration modes. These results not only demonstrate an effective synthetic platform for porous organic molecular materials stabilized solely by primary hydrogen bonds but also suggest a viable means to build robust SOF materials with enhanced gas uptake capacity and selectivity.
Collapse
Affiliation(s)
- Jian Lü
- Fujian
Provincial Key Laboratory of Soil Environmental Health and Regulation,
College of Resources and Environment, Fujian
Agriculture and Forestry University, Fuzhou 350002, P. R. China
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Cristina Perez-Krap
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Fabien Trousselet
- Chimie
ParisTech, PSL Research University, CNRS, Institut de Recherche de
Chimie Paris, 75005 Paris, France
| | - Yong Yan
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - Nada H. Alsmail
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
- Department
of General Studies, Jubail University College, P.O. Box 10074, Jubail Industrial City 31961, SKA
| | - Bahar Karadeniz
- Fujian
Provincial Key Laboratory of Soil Environmental Health and Regulation,
College of Resources and Environment, Fujian
Agriculture and Forestry University, Fuzhou 350002, P. R. China
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Nicholas M. Jacques
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - William Lewis
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Alexander J. Blake
- School
of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - François-Xavier Coudert
- Chimie
ParisTech, PSL Research University, CNRS, Institut de Recherche de
Chimie Paris, 75005 Paris, France
| | - Rong Cao
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
| | - Martin Schröder
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| |
Collapse
|
4
|
Cao HL, Huang HB, Chen Z, Karadeniz B, Lü J, Cao R. Ultrafine Silver Nanoparticles Supported on a Conjugated Microporous Polymer as High-Performance Nanocatalysts for Nitrophenol Reduction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5231-5236. [PMID: 28165717 DOI: 10.1021/acsami.6b13186] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A conjugated microporous polymer (CMP) material was designed with pore function of cyano and pyridyl groups that act as potential binding sites for Ag+ ion capture. Ultrafine silver nanoparticles (less than 5 nm) were successfully supported on the predesigned CMP material to afford Ag0@CMP composite materials by means of a simple liquid impregnation and light-induced reduction method. Spherical Ag0 nanoparticles with a statistical mean diameter of ca. 3.9 nm were observed and characterized by scanning electron microscopy and transmission electron microscopy. The Ag0@CMP composite materials were consequently exploited as high-performance nanocatalysts for the reduction of nitrophenols, a family of priority pollutants, at various temperatures and ambient pressure. Moreover, the composite nanocatalysts feature convenient recovery and excellent reusability. This work presents an efficient platform to achieve ultrafine metal nanoparticles immobilized on porous supports with predominant catalytic properties by virtue of the structural design and spatial confinement effect available for conjugated microporous polymers.
Collapse
Affiliation(s)
- Hai-Lei Cao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China
| | - Hai-Bo Huang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China
| | - Zhi Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China
| | - Bahar Karadeniz
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| | - Rong Cao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| |
Collapse
|
5
|
Nandi S, Chakraborty D, Vaidhyanathan R. A permanently porous single molecule H-bonded organic framework for selective CO2 capture. Chem Commun (Camb) 2016; 52:7249-52. [DOI: 10.1039/c6cc02964g] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO2 adsorption in a single molecule hydrogen-bonded framework, with the CO2 's oriented as T-shaped dimers, resembling those in solid-state CO2.
Collapse
Affiliation(s)
- Shyamapada Nandi
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune
- India
| | - Debanjan Chakraborty
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune
- India
| | - Ramanathan Vaidhyanathan
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune
- India
- Centre for Energy Science
| |
Collapse
|
6
|
Xu X, Hu F, Yan S, Lin J, Li Q, Shuai Q. Eco-friendly microwave synthesis of Mg( ii) phenoxy carboxylic acid coordination compounds with specific motifs driven by multiple hydrogen bonding. RSC Adv 2016. [DOI: 10.1039/c6ra09589e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Four magnesium complexes with specific motifs driven by multiple hydrogen bonding were synthesized by microwave method. The design strategy presented here gave an insight into the further structural prediction of magnesium supramolecular assemblies.
Collapse
Affiliation(s)
- Xiuling Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Fan Hu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Saisai Yan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Jianguang Lin
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Qing Li
- College of Foreign Languages
- Qingdao Agricultural University
- Qingdao 266109
- People's Republic of China
| | - Qi Shuai
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- People's Republic of China
| |
Collapse
|