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Bayati N, Dehghanpour S. Diamine-modified porous indium frameworks with crystalline porous materials (CPM)-5 structure for carbon dioxide fixation under co-catalyst and solvent free conditions. J Environ Sci (China) 2023; 132:12-21. [PMID: 37336602 DOI: 10.1016/j.jes.2022.08.029] [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: 05/25/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 06/21/2023]
Abstract
In the present work, functional diamine groups into indium frameworks to synthesize cyclic carbonates from CO2 and epoxides with efficient catalytic activity in the absence of co-catalyst and solvent are reported for the first time. Crystalline porous materials (CPM)-5 modified with 1,2-phenylene diamine and ethylene diamine (CPM-5-PhDA and CPM-5-EDA), were prepared using a post-synthetic modification (PSM) method. The properties of the modified CPM-5 were characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), N2-adsorption, scanning electron microscopy (SEM), CO2 adsorption, and temperature programmed desorption TPD methods. The presence of diamine groups as basic sites and indium Lewis acid sites in the framework structure were desirable for high catalytic activity. For a given catalyst weight, CPM-5-PhDA was the best candidate to appear with great catalytic activity and selectivity for the cycloaddition reaction at 100°C and 1 MPa CO2 under co-catalyst and solvent free conditions. CPM-5-PhDA also was found to afford large and bulky epoxides. The catalyst can be easily separated and reused five times without any decline in activity.
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Affiliation(s)
- Naghmeh Bayati
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran 1993893973, Iran
| | - Saeed Dehghanpour
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran 1993893973, Iran.
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Timofeeva M, Lukoyanov I, Panchenko V, Shefer K, Mel'gunov M, Bhadra B, Jhung S. Tuning the catalytic properties for cycloaddition of CO2 to propylene oxide on zeolitic-imidazolate frameworks through variation of structure and chemical composition. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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3
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Three coordination polymers of manganese(II), cadmium(II) with a flexible ligand of cis, cis, cis-1,2,3,4-cyclopentanetetracarboxylic acid: crystal structures, thermal decomposition mechanisms and magnetic properties. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04784-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Milani JLS, da Mata ÁFA, Oliveira IS, Valdo AKSM, Martins FT, Rabelo R, Cangussu D, Cano J, Lloret F, Julve M, das Chagas RP. Single-molecule magnet behaviour and catalytic properties of tetrahedral Co(II) complexes bearing chloride and 1,2-disubstituted benzimidazole as ligands. Dalton Trans 2022; 51:12258-12270. [PMID: 35895288 DOI: 10.1039/d2dt01440h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five cobalt(II) complexes of formula [CoCl2(Ln)2] [1 with L1 = 1-benzyl-2-phenyl-1H-benzimidazole, 2 with L2 = 2-(furan-2-yl)-1-(furan-2-ylmethyl)-1H-benzimidazole, 3 with L3 = 1-(4-chlorobenzyl)-2-(4-chlorophenyl)-1H-benzimidazole, 4 with L4 = 1-(2-methoxybenzyl)-2-(2-methoxyphenyl)-1H-benzimidazole and 5 with L5 = 2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole] have been synthesised, spectroscopically characterised and cryomagnetically investigated. The crystal structures of 1, 3, 4 and 5 have been determined by X-ray diffraction on single crystals. Each cobalt(II) ion is four-coordinate in a distorted tetrahedral environment built by two chloride anions and two benzimidazole ligands. The neutral molecules are well separated from each other, shortest intermolecular cobalt⋯cobalt distances being greater than 9.0 Å. Static (dc) magnetic susceptibility measurements in the temperature range 2.0-300 K of 1-5 reveal the occurrence of a Curie law behaviour of magnetically non-interacting spin quadruplets in the high-temperature domain with a downturn at low temperatures due to magnetic anisotropy. The values of the D and E/D parameters for these compounds vary in the ranges -8.75 to +8.96 cm-1 and 0.00140 to 0.23, respectively. Dynamic (ac) magnetic susceptibility measurements of 1-5 show slow magnetic relaxation in the lack (1) or under the presence (1-5) of applied dc magnetic fields, a feature which is typical of single-molecule magnet behaviour (SMM). The analysis of the ac data shows that a thermally activated Orbach relaxation mechanism dominates this behaviour. Complexes 1-5 also act as efficient and highly selective eco-friendly catalysts in the coupling reaction between CO2 and epoxides to produce cyclic carbonates under solvent-free conditions. Under optimized reaction conditions, different epoxides were converted to the respective cyclic carbonate, with excellent conversions, using catalyst 4.
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Affiliation(s)
- Jorge Luiz Sônego Milani
- Instituto de Química, Universidade Federal de Goiás - UFG, Goiânia, GO, Brazil. .,Departamento de Química, Universidade Federal de Juiz de Fora - UFJF, Juiz de Fora, MG, Brazil.
| | | | | | - Ana Karoline Silva Mendanha Valdo
- Instituto de Química, Universidade Federal de Goiás - UFG, Goiânia, GO, Brazil. .,Instituto Federal Goiano, IF Goiano, Iporá, GO, Brazil
| | | | - Renato Rabelo
- Universitat de València, Departament de Química Inorgánica/Instituto de Ciencia Molecular (ICMol), Paterna, València, Spain.
| | - Danielle Cangussu
- Instituto de Química, Universidade Federal de Goiás - UFG, Goiânia, GO, Brazil.
| | - Joan Cano
- Universitat de València, Departament de Química Inorgánica/Instituto de Ciencia Molecular (ICMol), Paterna, València, Spain.
| | - Francesc Lloret
- Universitat de València, Departament de Química Inorgánica/Instituto de Ciencia Molecular (ICMol), Paterna, València, Spain.
| | - Miguel Julve
- Universitat de València, Departament de Química Inorgánica/Instituto de Ciencia Molecular (ICMol), Paterna, València, Spain.
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Aliakbari R, Ramakrishna S, Kowsari E, Marfavi Y, Cheshmeh ZA, Ajdari FB, Kiaei Z, Torkzaban H, Ershadi M. Scalable preparation of MOFs and MOF-containing hybrid materials for use in sustainable refrigeration systems for a greener environment: a comprehensive review as well as technical and statistical analysis of patents. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04738-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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