1
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Hulushe ST, Watkins GM, Khanye SD. A cobalt(II) coordination polymer-derived catalyst engineered via temperature-induced semi-reversible single-crystal-to-single-crystal (SCSC) dehydration for efficient liquid-phase epoxidation of olefins. Dalton Trans 2024. [PMID: 38899354 DOI: 10.1039/d4dt00739e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Single-crystal-to-single-crystal (SCSC) transformations provide more avenues for phase transitions, which have piqued great interest in crystal engineering. In this work, a 3D Co(II)-based coordination polymer (CP), {Co2(OH2)8(btec)}·4H2O (1), (where (btec)4- = 1,2,4,5-benzenetetracarboxylate) undergoes SCSC transition upon heating at 180 °C to afford an anhydrous phase [Co2(btec)] (1'). Room-temperature water-vapour induced semi-reversible SCSC transformation of 1' involves condensation of two water molecules coordinating to the metal cluster, yielding a new framework [Co2(OH2)2(btec)] (2). These SCSC transitions were accomplished through a sequential bond breaking and new bond formation process which was accompanied by colour changes from orange (1) → violet (1') → pink (2). All materials were structurally elucidated by single-crystal X-ray diffraction (SCXRD) and further established by various analytical techniques. According to SCXRD data, all the frameworks possess octahedral geometries around the cobalt(II) sphere. SCXRD studies further revealed that 1 is a polymeric architecture with a binodal 4-c sql topology while 1' and 2 possess (3,6)-c kgd and (4,6)-c scu 3D nets, respectively. By virtue of multitopicity exhibited by the tetracarboxylate, the coordination number of the linker around the Co(II) sphere increased from four (in 1) to eight (in 1') and then decreased to six (in 2). Most interestingly, permanent porosity could be observed for the dihydrate 2, originated from potential void space as substantiated by dinitrogen (N2) sorption isotherm. These porous frameworks were active catalysts for the aerobic epoxidation of the model substrate cyclohexene using molecular oxygen (O2) as the final oxidant in the presence of the sacrificial i-butyraldehyde (IBA) reductant. For using the dihydrous phase 2, cyclohexene and various other olefins were catalytically oxidised to their corresponding epoxides with up to 38.5% conversion and 99.0% selectivity. The catalyst 2 can be expediently recycled in four runs without significant loss of activity. This research demonstrates that a little innovation in the active-site-engineered organic-inorganic hybrid materials can significantly enhance the catalytic performance and selectivity of coordination polymer-derived heterogeneous catalysts.
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Affiliation(s)
- Siya T Hulushe
- Department of Chemistry, Rhodes University, Makhanda 6139, South Africa.
| | - Gareth M Watkins
- Department of Chemistry, Rhodes University, Makhanda 6139, South Africa.
| | - Setshaba D Khanye
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Rhodes University, Makhanda 6139, South Africa
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2
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Pachisia S, Gupta R. Tailored Inorganic-Organic Architectures via Metalloligands. CHEM REC 2022; 22:e202200121. [PMID: 35758543 DOI: 10.1002/tcr.202200121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/07/2022] [Indexed: 11/08/2022]
Abstract
This article discusses the design principles and strategies and the structural outcome of various supramolecular architectures constructed by utilizing well-defined coordination complexes as the metalloligands. We have included selected examples of metalloligands, offering either pyridyl or arylcarboxylic acid groups as the appended functional groups, for illustrating the construction of their supramolecular architectures. Both geometrical position and the number of the appended functional groups emerging from a metalloligand were found to critically regulate the structural aspects and dimensionality of the resultant material. The article concludes by delineating the structure-directing lessions as well as the potential applications of the metalloligand-based supramolecular architectures for the generation of next-level materials.
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Affiliation(s)
- Sanya Pachisia
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi, 110007, India
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3
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Gupta R, Kumar G, Gupta R. Encapsulation-Led Adsorption of Neutral Dyes and Complete Photodegradation of Cationic Dyes and Antipsychotic Drugs by Lanthanide-Based Macrocycles. Inorg Chem 2022; 61:7682-7699. [PMID: 35543424 DOI: 10.1021/acs.inorgchem.2c00688] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Molecular architectures offering large cavities can accommodate guest molecules, while their compositional engineering allows tunability of the band gap to support photocatalysis using visible light. In this work, two lanthanide (Ln)-based macrocycles, synthesized using a cobalt-based metalloligand and offering large rectangular cavities, exhibited selective adsorption of neutral dyes over both anionic and cationic dyes. Both Ln macrocycles illustrated complete photodegradation of cationic dyes using visible light without the use of any oxidant. Both Ln macrocycles exhibited complete photodegradation of not only cationic dyes but also a few phenothiazine-based antipsychotic drugs. Photocatalysis involved the generation of reactive oxygen species (ROS), which was corroborated with the band gap of two Ln macrocycles. These results were supported by radical scavenger studies and the quantitative estimation of superoxide and hydroxyl radicals. Complete photodegradation of both dyes and drugs was confirmed by spectral studies, while the generation of CO2 and N2 gases was established by gas chromatography. Importantly, Ln macrocycles were able to distinguish between the neutral dyes that were quantitatively adsorbed and the cationic dyes/drugs that were completely photodegraded.
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Affiliation(s)
- Ruchika Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Gulshan Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
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4
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Suku S, Ravindran R. Synthesis, characterization and antimicrobial studies of 1D hetero-bimetallic coordination polymers of pyridine-2,6-dicarboxylic acid with iron and alkaline earth metals. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Yadav S, Vijayan P, Gupta R. Ruthenium complexes of N/O/S based multidentate ligands: Structural diversities and catalysis perspectives. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Kuwamura N, Konno T. Heterometallic coordination polymers as heterogeneous electrocatalysts. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00112d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Heterometallic coordination polymers have been rapidly developed as heterogeneous electrocatalysts. This review highlights the synthesis strategies of these polymers and the relationships between structures and electrocatalytic performances.
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Affiliation(s)
- Naoto Kuwamura
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- Japan
| | - Takumi Konno
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka
- Japan
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7
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Pachisia S, Gupta R. Architectural and catalytic aspects of designer materials built using metalloligands of pyridine-2,6-dicarboxamide based ligands. Dalton Trans 2020; 49:14731-14748. [PMID: 33084678 DOI: 10.1039/d0dt03058a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This perspective presents the design, synthesis and crystal structures of a large number of architectures constructed using assorted metalloligands of pyridine-2,6-dicarboxamide based ligands. The metalloligands offered various appended functional groups, whereas design strategies included varying both their position and number. A combination of these parameters resulted in the development of assorted architectures including discrete trinuclear and tetranuclear complexes as well as 1D/2D/3D coordination polymers. The metalloligand strategy not only assisted in the construction of ordered crystalline materials with varied dimensionalities but also judiciously allowed the incorporation of Lewis acidic and redox-active secondary metals in the resultant architectures. As a result, such designer architectures illustrated their noteworthy role both as homogenous and heterogeneous catalysts in different organic transformation reactions.
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Affiliation(s)
- Sanya Pachisia
- Department of Chemistry, University of Delhi, Delhi - 110007, India.
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8
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Karmakar A, Pombeiro AJ. Recent advances in amide functionalized metal organic frameworks for heterogeneous catalytic applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.05.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Engel RV, Alsaiari R, Nowicka E, Miedziak PJ, Kondrat SA, Morgan DJ, Edwards JK, Hutchings GJ. Solvent-free aerobic epoxidation of 1-decene using supported cobalt catalysts. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Karmakar A, Rúbio GMDM, Guedes da Silva MFC, Pombeiro AJL. Synthesis of Metallomacrocycle and Coordination Polymers with Pyridine-Based Amidocarboxylate Ligands and Their Catalytic Activities towards the Henry and Knoevenagel Reactions. ChemistryOpen 2018; 7:865-877. [PMID: 30410851 PMCID: PMC6217112 DOI: 10.1002/open.201800170] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Indexed: 01/06/2023] Open
Abstract
The reactions of 3,3'-{(pyridine-2,6-dicarbonyl)bis(azanediyl)}dibenzoic acid (H2L) with zinc(II), cadmium(II), and samarium(III) nitrates were studied, and the obtained compounds, [Zn(1κO:2κO'-L)(H2O)2] n (1), [Cd(1κO 2:2κO 2-L)(H2O)2]2 ⋅6n H2O⋅ n C4H8O2 ⋅1.5n DMF (2), and [Sm(1κO:2κO'O'':3κO'''-L)(NO3)(H2O)(dmf)] n ⋅ n DMF (3), were characterized by elemental analysis, FTIR spectroscopy, thermogravimetric analysis, and X-ray single-crystal diffraction. Compounds 1 and 3 have 1D zigzag- and double-chain-type structures, respectively, whereas 2 features a dinuclear metallomacrocyclic complex. The ligand (L2-) orients in different conformations, that is, syn-syn for 1 and anti-anti for 2 and 3. Compound 1 is the first example in which the syn-syn conformation for this ligand has been observed. These compounds act as heterogeneous catalysts for the nitroaldol (Henry; in water medium) and Knoevenagel condensation reactions of different aldehydes, and the most effective is zinc coordination polymer 1. Recyclability, heterogeneity, and size-selectivity tests were performed, which showed that the catalyst was highly active over at least four recycling runs.
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Affiliation(s)
- Anirban Karmakar
- Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais1049-001LisbonPortugal
| | - Guilherme M. D. M. Rúbio
- Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais1049-001LisbonPortugal
| | - M. Fátima C. Guedes da Silva
- Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais1049-001LisbonPortugal
| | - Armando J. L. Pombeiro
- Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais1049-001LisbonPortugal
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11
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Kumar G, Gupta R. Coordination driven architectures based on metalloligands offering appended carboxylic acid groups. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1491-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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Kumar G, Hussain F, Gupta R. Copper based coordination polymers based on metalloligands: utilization as heterogeneous oxidation catalysts. Dalton Trans 2018; 47:16985-16994. [DOI: 10.1039/c8dt03836h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents two copper-based coordination polymers and their utilization as stable, reusable and heterogeneous catalysts for the epoxidation of olefins using O2 and for peroxide-mediated oxidation of benzyl alcohols under solvent-free conditions.
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Affiliation(s)
- Gulshan Kumar
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Firasat Hussain
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
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13
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Pandey S, Bansal D, Gupta R. A metalloligand appended with benzimidazole rings: tetranuclear [CoZn3] and [CoCd3] complexes and their catalytic applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj00734a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel Co3+-based metalloligand, offering appended benzimidazole rings, has been utilized for the synthesis of catalytically active tetranuclear [CoZn3] and [CoCd3] heterometallic coordination complexes.
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Affiliation(s)
- Saurabh Pandey
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Deepak Bansal
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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14
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Rajiv Singh A, Rawat NS, Sanjeeta Devi P, Lonibala R. Hydrothermal synthesis of a coordination polymer[Ca II (5-AIP)(DMA)] n and its application in epoxidation of various organic substrates. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Bikas R, Ghorbanloo M, Sasani R, Pantenburg I, Meyer G. Manganese(II) complexes of hydrazone based NNO-donor ligands and their catalytic activity in the oxidation of olefins. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1281918] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Rahman Bikas
- Faculty of Science, Department of Chemistry, University of Zanjan, Zanjan, Iran
| | - Massomeh Ghorbanloo
- Faculty of Science, Department of Chemistry, University of Zanjan, Zanjan, Iran
| | - Roya Sasani
- Faculty of Science, Department of Chemistry, University of Zanjan, Zanjan, Iran
| | - Ingo Pantenburg
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Köln, Germany
| | - Gerd Meyer
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Köln, Germany
- Department of Chemistry, Iowa State University, Ames, IA, USA
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16
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Kumar G, Hussain F, Gupta R. Carbon-sulphur cross coupling reactions catalyzed by nickel-based coordination polymers based on metalloligands. Dalton Trans 2017; 46:15023-15031. [DOI: 10.1039/c7dt02064c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work illustrates two Ni2+based coordination polymers and their utilization as reusable and heterogeneous catalysts for the C–S cross coupling reactions between assorted aromatic halides with thiophenol, cyclohexanethiol and ethanethiol.
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Affiliation(s)
- Gulshan Kumar
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | | | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
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17
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Abstract
This article describes a collection of MOF containing compounds as catalysts in a diverse range of organic transformation reactions.
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Affiliation(s)
- Girijesh Kumar
- Department of Chemistry & Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160014
- India
| | - Samar K. Das
- School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
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18
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Design and synthesis of hybrid solids based on the tetravanadate core toward improved catalytic properties. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Srivastava S, Gupta R. Metalloligands to material: design strategies and network topologies. CrystEngComm 2016. [DOI: 10.1039/c6ce01869f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Kumar G, Kumar G, Gupta R. Lanthanide-based coordination polymers as promising heterogeneous catalysts for ring-opening reactions. RSC Adv 2016. [DOI: 10.1039/c5ra26283f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Eu and Tb based coordination polymers function as reusable heterogeneous catalysts for ring-opening reactions with amines, alcohols, thiols, and azides as nucleophiles.
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Affiliation(s)
- Gulshan Kumar
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Girijesh Kumar
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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21
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Yadav S, Kumar S, Gupta R. Manganese Complexes of Pyrrole‐ and Indolecarboxamide Ligands: Synthesis, Structure, Electrochemistry, and Applications in Oxidative and Lewis‐Acid‐Assisted Catalysis. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500773] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sunil Yadav
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
| | - Sushil Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
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22
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Bansal D, Pandey S, Hundal G, Gupta R. Heterometallic coordination polymers: syntheses, structures and heterogeneous catalytic applications. NEW J CHEM 2015. [DOI: 10.1039/c5nj01223f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Heterometallic coordination polymers function as heterogeneous catalysts for various organic transformation reactions via preferential interaction with the substrates.
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Affiliation(s)
- Deepak Bansal
- Department of Chemistry
- University of Delhi
- Delhi, 110 007
- India
| | - Saurabh Pandey
- Department of Chemistry
- University of Delhi
- Delhi, 110 007
- India
| | - Geeta Hundal
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar–143 005
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi, 110 007
- India
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