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Yang S, Zhi K, Zhang Z, Kerem R, Hong Q, Zhao L, Wu W, Wang L, Wang D. Nitrogen-Rich Triazine-Based Covalent Organic Frameworks as Efficient Visible Light Photocatalysts for Hydrogen Peroxide Production. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:643. [PMID: 38607177 PMCID: PMC11013763 DOI: 10.3390/nano14070643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/05/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
Covalent organic frameworks (COFs) have been widely used in photocatalytic hydrogen peroxide (H2O2) production due to their favorable band structure and excellent light absorption. Due to the rapid recombination rate of charge carriers, however, their applications are mainly restricted. This study presents the design and development of two highly conjugated triazine-based COFs (TBP-COF and TTP-COF) and evaluates their photocatalytic H2O2 production performance. The nitrogen-rich structures and high degrees of conjugation of TBP-COF and TTP-COF facilitate improved light absorption, promote O2 adsorption, enhance their redox power, and enable the efficient separation and transfer of photogenerated charge carriers. There is thus an increase in the photocatalytic activity for the production of H2O2. When exposed to 10 W LED visible light irradiation at a wavelength of 420 nm, the pyridine-based TTP-COF produced 4244 μmol h-1 g-1 of H2O2 from pure water in the absence of a sacrificial agent. Compared to TBP-COF (1882 μmol h-1 g-1), which has a similar structure but lacks pyridine sites, TTP-COF demonstrated nearly 2.5 times greater efficiency. Furthermore, it exhibited superior performance compared to most previously published nonmetal COF-based photocatalysts.
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Affiliation(s)
- Shu Yang
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Keke Zhi
- College of Engineering, China University of Petroleum—Beijing at Karamay, Karamay 834000, China;
- State Key Laboratory of Heavy Oil Processing—Karamay Branch, Karamay 834000, China
| | - Zhimin Zhang
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Rukiya Kerem
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Qiong Hong
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Lei Zhao
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Wenbo Wu
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
| | - Lulu Wang
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
| | - Duozhi Wang
- College of Chemistry, Xinjiang University, Urumqi 830017, China; (S.Y.); (Z.Z.); (R.K.); (Q.H.); (L.Z.); (W.W.)
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Urumqi 830017, China
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Stamou C, Dechambenoit P, Lada ZG, Gkolfi P, Riga V, Raptopoulou CP, Psycharis V, Konidaris KF, Chasapis CT, Perlepes SP. Reactions of Cadmium(II) Halides and Di-2-Pyridyl Ketone Oxime: One-Dimensional Coordination Polymers. Molecules 2024; 29:509. [PMID: 38276587 PMCID: PMC10820575 DOI: 10.3390/molecules29020509] [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: 12/05/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
The coordination chemistry of 2-pyridyl ketoximes continues to attract the interest of many inorganic chemistry groups around the world for a variety of reasons. Cadmium(II) complexes of such ligands have provided models of solvent extraction of this toxic metal ion from aqueous environments using 2-pyridyl ketoxime extractants. Di-2-pyridyl ketone oxime (dpkoxH) is a unique member of this family of ligands because its substituent on the oxime carbon bears another potential donor site, i.e., a second 2-pyridyl group. The goal of this study was to investigate the reactions of cadmium(II) halides and dpkoxH in order to assess the structural role (if any) of the halogeno ligand and compare the products with their zinc(II) analogs. The synthetic studies provided access to complexes {[CdCl2(dpkoxH)∙2H2O]}n (1∙2H2O), {[CdBr2(dpkoxH)]}n (2) and {[CdI2(dpkoxH)]}n (3) in 50-60% yields. The structures of the complexes were determined by single-crystal X-ray crystallography. The compounds consist of structurally similar 1D zigzag chains, but only 2 and 3 are strictly isomorphous. Neighboring CdII atoms are alternately doubly bridged by halogeno and dpkoxH ligands, the latter adopting the η1:η1:η1:μ (or 2.0111 using Harris notation) coordination mode. A terminal halogeno group completes distorted octahedral coordination at each metal ion, and the coordination sphere of the CdII atoms is {CdII(η1 - X)(μ - X)2(Npyridyl)2(Noxime)} (X = Cl, Br, I). The trans-donor-atom pairs in 1∙2H2O are Clterminal/Noxime and two Clbridging/Npyridyl; on the contrary, these donor-atom pairs are Xterminal/Npyridyl, Xbridging/Noxime, and Xbridging/Npyridyl (X = Br, I). There are intrachain H-bonding interactions in the structures. The packing of the chains in 1∙2H2O is achieved via π-π stacking interactions, while the 3D architecture of the isomorphous 2 and 3 is built via C-H∙∙∙Cg (Cg is the centroid of one pyridyl ring) and π-π overlaps. The molecular structures of 1∙2H2O and 2 are different compared with their [ZnX2(dpkoxH)] (X = Cl, Br) analogs. The polymeric compounds were characterized by IR and Raman spectroscopies in the solid state, and the data were interpreted in terms of the known molecular structures. The solid-state structures of the complexes are not retained in DMSO, as proven via NMR (1H, 13C, and 113Cd NMR) spectroscopy and molar conductivity data. The complexes completely release the coordinated dpkoxH molecule, and the dominant species in solution seem to be [Cd(DMSO)6]2+ in the case of the chloro and bromo complexes and [CdI2(DMSO)4].
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Affiliation(s)
- Christina Stamou
- Department of Chemistry, University of Patras, 26504 Patras, Greece; (C.S.); (P.G.); (V.R.)
| | - Pierre Dechambenoit
- Centre de Recherche Paul Pascal, UMR 5031, CNRS, University of Bordeaux, 33600 Pessac, France;
| | - Zoi G. Lada
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Platani, P.O. Box 1414, 26504 Patras, Greece;
| | - Patroula Gkolfi
- Department of Chemistry, University of Patras, 26504 Patras, Greece; (C.S.); (P.G.); (V.R.)
| | - Vassiliki Riga
- Department of Chemistry, University of Patras, 26504 Patras, Greece; (C.S.); (P.G.); (V.R.)
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi Attikis, Greece;
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi Attikis, Greece;
| | - Konstantis F. Konidaris
- Department of Chemistry, Materials Science and Chemical Engineering “Giulio Natta”, Via L. Mancinelli 7, 20131 Milan, Italy
| | - Christos T. Chasapis
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece
| | - Spyros P. Perlepes
- Department of Chemistry, University of Patras, 26504 Patras, Greece; (C.S.); (P.G.); (V.R.)
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Platani, P.O. Box 1414, 26504 Patras, Greece;
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Direct synthesis of amorphous coordination polymers and metal–organic frameworks. Nat Rev Chem 2023; 7:273-286. [PMID: 37117419 DOI: 10.1038/s41570-023-00474-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2023] [Indexed: 03/08/2023]
Abstract
Coordination polymers (CPs) and their subset, metal-organic frameworks (MOFs), can have porous structures and hybrid physicochemical properties that are useful for diverse applications. Although crystalline CPs and MOFs have received the most attention to date, their amorphous states are of growing interest as they can be directly synthesized under mild conditions. Directly synthesized amorphous CPs (aCPs) can be constructed from a wider range of metals and ligands than their crystalline and crystal-derived counterparts and demonstrate numerous unique material properties, such as higher mechanical robustness, increased stability and greater processability. This Review examines methods for the direct synthesis of aCPs and amorphous MOFs, as well as their properties and characterization routes, and offers a perspective on the opportunities for the widespread adoption of directly synthesized aCPs.
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Redox active extended networks constructed from the three-fold symmetrical TPymT ligand [2,4,6-Tris(2-pyrimidyl)-1,3,5-triazine] and silver(I) ions. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Routzomani A, Lada ZG, Angelidou V, P. Raptopoulou C, Psycharis V, Konidaris KF, Chasapis CT, Perlepes SP. Confirming the Molecular Basis of the Solvent Extraction of Cadmium(II) Using 2-Pyridyl Oximes through a Synthetic Inorganic Chemistry Approach and a Proposal for More Efficient Extractants. Molecules 2022; 27:molecules27051619. [PMID: 35268720 PMCID: PMC8911866 DOI: 10.3390/molecules27051619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 12/10/2022] Open
Abstract
The present work describes the reactions of CdI2 with 2-pyridyl aldoxime (2paoH), 3-pyridyl aldoxime (3paoH), 4-pyridyl aldoxime (4paoH), 2-6-diacetylpyridine dioxime (dapdoH2) and 2,6-pyridyl diamidoxime (LH4). The primary goal was to contribute to understanding the molecular basis of the very good liquid extraction ability of 2-pyridyl ketoximes with long aliphatic chains towards toxic Cd(II) and the inability of their 4-pyridyl isomers for this extraction. Our systematic investigation provided access to coordination complexes [CdI2(2paoH)2] (1), {[CdI2(3paoH)2]}n (2), {[CdI2(4paoH)2]}n (3) and [CdI2(dapdoH2)] (4). The reaction of CdI2 and LH4 in EtOH resulted in a Cd(II)-involving reaction of the bis(amidoxime) and isolation of [CdI2(L'H2)] (5), where L'H2 is the new ligand 2,6-bis(ethoxy)pyridine diimine. A mechanism of this transformation has been proposed. The structures of 1, 2, 3, 4·2EtOH and 5 were determined by single-crystal X-ray crystallography. The complexes have been characterized by FT-IR and FT-Raman spectra in the solid state and the data are discussed in terms of structural features. The stability of the complexes in DMSO was investigated by 1H NMR spectroscopy. Our studies confirm that the excellent extraction ability of 2-pyridyl ketoximes is due to the chelating nature of the extractants leading to thermodynamically stable Cd(II) complexes. The monodentate coordination of 4-pyridyl ketoximes (as confirmed in our model complexes with 4paoH and 3paoH) seems to be responsible for their poor performance as extractants.
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Affiliation(s)
- Anastasia Routzomani
- Department of Chemistry, University of Patras, 265 04 Patras, Greece; (A.R.); (Z.G.L.); (V.A.)
| | - Zoi G. Lada
- Department of Chemistry, University of Patras, 265 04 Patras, Greece; (A.R.); (Z.G.L.); (V.A.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), Platani, P.O. Box 1414, 265 04 Patras, Greece
| | - Varvara Angelidou
- Department of Chemistry, University of Patras, 265 04 Patras, Greece; (A.R.); (Z.G.L.); (V.A.)
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, Attikis, 153 10 Athens, Greece;
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, Attikis, 153 10 Athens, Greece;
- Correspondence: (V.P.); (K.F.K.); (C.T.C.); (S.P.P.); Tel.: +30-210-650-3346 (V.P.); +39-031-238-6472 (K.F.K.); +30-261-0 99-6261 (C.T.C.); +30-261-099-6730 (S.P.P.)
| | - Konstantis F. Konidaris
- Department of Science and High Technology and INSTM, University of Insubria, 22 100 Como, Italy
- Correspondence: (V.P.); (K.F.K.); (C.T.C.); (S.P.P.); Tel.: +30-210-650-3346 (V.P.); +39-031-238-6472 (K.F.K.); +30-261-0 99-6261 (C.T.C.); +30-261-099-6730 (S.P.P.)
| | - Christos T. Chasapis
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), Platani, P.O. Box 1414, 265 04 Patras, Greece
- NMR Facility, Instrumental Analysis Laboratory, School of Natural Sciences, University of Patras, 265 04 Patras, Greece
- Correspondence: (V.P.); (K.F.K.); (C.T.C.); (S.P.P.); Tel.: +30-210-650-3346 (V.P.); +39-031-238-6472 (K.F.K.); +30-261-0 99-6261 (C.T.C.); +30-261-099-6730 (S.P.P.)
| | - Spyros P. Perlepes
- Department of Chemistry, University of Patras, 265 04 Patras, Greece; (A.R.); (Z.G.L.); (V.A.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), Platani, P.O. Box 1414, 265 04 Patras, Greece
- Correspondence: (V.P.); (K.F.K.); (C.T.C.); (S.P.P.); Tel.: +30-210-650-3346 (V.P.); +39-031-238-6472 (K.F.K.); +30-261-0 99-6261 (C.T.C.); +30-261-099-6730 (S.P.P.)
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Vidal M, Rodríguez‐Aguilar J, Aburto I, Aliaga C, Domínguez M. Reactivity of 4‐pyrimidyl Sulfonic Esters in Suzuki‐Miyaura Cross‐Coupling Reactions in Water Under Microwave Irradiation. ChemistrySelect 2021. [DOI: 10.1002/slct.202103280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matías Vidal
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - José Rodríguez‐Aguilar
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Ignacio Aburto
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Carolina Aliaga
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
- Centro de Nanociencia y Nanotecnología CEDENNA Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Moisés Domínguez
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
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Barakat A, El‐Faham A, Haukka M, Al‐Majid AM, Soliman SM. s
‐Triazine pincer ligands: Synthesis of their metal complexes, coordination behavior, and applications. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6317] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Assem Barakat
- Department of Chemistry, College of Science King Saud University PO Box 2455 Riyadh 11451 Saudi Arabia
- Department of Chemistry, Faculty of Science Alexandria University PO Box 426, Ibrahimia Alexandria 21321 Egypt
| | - Ayman El‐Faham
- Department of Chemistry, College of Science King Saud University PO Box 2455 Riyadh 11451 Saudi Arabia
- Department of Chemistry, Faculty of Science Alexandria University PO Box 426, Ibrahimia Alexandria 21321 Egypt
| | - Matti Haukka
- Department of Chemistry University of Jyväskylä PO Box 35 Jyväskylä FI‐40014 Finland
| | | | - Saied M. Soliman
- Department of Chemistry, Faculty of Science Alexandria University PO Box 426, Ibrahimia Alexandria 21321 Egypt
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Linxin D, Song L. Synthesis, structural characterization, methane and nitrogen adsorption of a 3D MOF {(ZnBTC)(CH3)2NH2.DMF}n with a novel hollow-basket spheral cumulate structure. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.128871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Xu J, Terskikh VV, Chu Y, Zheng A, Huang Y. 13 C chemical shift tensors in MOF α-Mg 3 (HCOO) 6 : Which component is more sensitive to host-guest interaction? MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:1082-1090. [PMID: 31659777 DOI: 10.1002/mrc.4944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/23/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
Metal-organic frameworks (MOFs) are a class of important porous materials with many current and potential applications. Their applications almost always involve the interaction between host framework and guest species. Therefore, understanding of host-guest interaction in MOF systems is fundamentally important. Solid-state NMR spectroscopy is an excellent technique for investigating host-guest interaction as it provides information complementary to that obtained from X-ray diffraction. In this work, using MOF α-Mg3 (HCOO)6 as an example, we demonstrated that 13 C chemical shift tensor of organic linker can be utilized to probe the host-guest interaction in MOFs. Obtaining 13 C chemical shift tensor components (δ11 , δ22 , and δ33 , where δ11 ≥ δ22 ≥ δ33 ) in this MOF is particularly challenging as there are six coordinatively equivalent but crystallographically non-equivalent carbons in the unit cell with very similar local coordination environment. Two-dimensional magic-angle-turning experiments were employed to measure the 13 C chemical shift tensors of each individual crystallographically non-equivalent carbon in three microporous α-Mg3 (HCOO)6 samples with different guest species. The results indicate that the δ22 component (with its direction approximately being co-planar with the formate anion and perpendicular to the C-H bond) is more sensitive to the adsorbate molecules inside the MOF channel due to the weak C-H···O hydrogen bonding or the ring current effect of benzene. The 13 C isotropic chemical shift, on the other hand, seems much less sensitive to the subtle changes in the local environment around formate linker induced by adsorption. The approach described in this study may be used in future studies on host-guest interaction within MOFs.
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Affiliation(s)
- Jun Xu
- Center for Rare Earth and Inorganic Functional Materials, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, P.R. China
- Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Victor V Terskikh
- Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Yueying Chu
- Chinese Academy of Sciences, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Wuhan, 430071, P.R. China
| | - Anmin Zheng
- Chinese Academy of Sciences, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Wuhan, 430071, P.R. China
| | - Yining Huang
- Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
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Shova S, Vlad A, Damoc M, Tiron V, Dascalu M, Novitchi G, Ursu C, Cazacu M. Nanoscale Coordination Polymer of Dimanganese(II) as Infinite, Flexible Nanosheets with Photo‐Switchable Morphology. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sergiu Shova
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Angelica Vlad
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Madalin Damoc
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Vasile Tiron
- Faculty of Physics Alexandru Ioan Cuza University of Iasi Blvd. Carol I no. 11 700506 Iași Romania
| | - Mihaela Dascalu
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Ghenadie Novitchi
- CNRS UPR 3228 Laboratoire National des Champs Magnétiques Intenses 25 Rue des Martyrs 38042 Grenoble France
| | - Cristian Ursu
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Maria Cazacu
- Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
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Sun J, Zhou T, Pan D, Zhang X, Wang Y, Shi YC, Yu H. Synthesis, structure, and photoluminescence properties of coordination polymers of 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine. CrystEngComm 2020. [DOI: 10.1039/c9ce01529a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three coordination polymers based on 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine ligands were synthesized. Luminescence studies revealed that [Cd3(Htcps)2(btap)(H2O)6] exhibits a luminescence quenching response towards Fe3+ and Cu2+.
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Affiliation(s)
- Jing Sun
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Tao Zhou
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Dalong Pan
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Xinzhu Zhang
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yuying Wang
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yao-Cheng Shi
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Huaguang Yu
- College of Physics Science and Technology, and
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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Holmes ST, Schurko RW. A DFT/ZORA Study of Cadmium Magnetic Shielding Tensors: Analysis of Relativistic Effects and Electronic-State Approximations. J Chem Theory Comput 2019; 15:1785-1797. [PMID: 30721042 DOI: 10.1021/acs.jctc.8b01296] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Theoretical considerations are discussed for the accurate prediction of cadmium magnetic shielding tensors using relativistic density functional theory (DFT). Comparison is made between calculations that model the extended lattice of the cadmium-containing solids using periodic boundary conditions and pseudopotentials with calculations that use clusters of atoms. The all-electron cluster-based calculations afford an opportunity to examine the importance of (i) relativistic effects on cadmium magnetic shielding tensors, as introduced through the ZORA Hamiltonian at either the scalar (SC) or spin-orbit (SO) levels and (ii) variation in the class of the DFT approximation. Twenty-three combinations of pseudopotentials or all-electron methods, DFT functionals, and relativistic treatments are assessed for the prediction of the principal components of the magnetic shielding tensors of 30 cadmium sites. We find that the inclusion of SO coupling can increase the cadmium magnetic shielding by as much as ca. 1100 ppm for a certain principal values; these effects are most pronounced for cadmium sites featuring bonds to other heavy atoms such as cadmium, iodine, or selenium. The best agreement with experimental values is found at the ZORA SO level in combination with a hybrid DFT method featuring a large admixture of Hartree-Fock exchange such as BH&HLYP. Finally, a theoretical examination is presented of the magnetic shielding tensor of the Cd(I) site in Cd2(AlCl4)2.
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Affiliation(s)
- Sean T Holmes
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , ON , Canada N9B 3P4
| | - Robert W Schurko
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , ON , Canada N9B 3P4
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Kobera L, Czernek J, Abbrent S, Mackova H, Pavlovec L, Rohlicek J, Brus J. The Nature of Chemical Bonding in Lewis Adducts as Reflected by 27Al NMR Quadrupolar Coupling Constant: Combined Solid-State NMR and Quantum Chemical Approach. Inorg Chem 2018; 57:7428-7437. [PMID: 29869504 DOI: 10.1021/acs.inorgchem.8b01009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Lewis acids and Lewis adducts are widely used in the chemical industry because of their high catalytic activity. Their precise geometrical description and understanding of their electronic structure are a crucial step for targeted synthesis and specific use. Herein, we present an experimental/computational strategy based on a solid-state NMR crystallographic approach allowing for detailed structural characterization of a wide range of organoaluminum compounds considerably differing in their chemical constitution. In particular, we focus on the precise measurement and subsequent quantum-chemical analysis of many different 27Al NMR resonances in the extremely broad range of quadrupolar coupling constants from 1 to 50 MHz. In this regard, we have optimized an experimental strategy combining a range of static as well as magic angle spinning experiments allowing reliable detection of the entire set of aluminum sites present in trimesitylaluminum (AlMes3) reaction products. In this way, we have spectroscopically resolved six different products in the resulting polycrystalline mixture. All 27Al NMR resonances are precisely recorded and comprehensively analyzed by a quantum-chemical approach. Interestingly, in some cases the recorded 27Al solid-state NMR spectra show unexpected quadrupolar coupling constant values reaching up to ca. 30 MHz, which are attributed to tetra-coordinated aluminum species (Lewis adducts with trigonal pyramidal geometry). The cause of this unusual behavior is explored by analyzing the natural bond orbitals and complexation energies. The linear correlation between the quadrupolar coupling constant value and the nature of bonds in the Lewis adducts is revealed. Moreover, the 27Al NMR data are shown to be sensitive to the geometry of the tetra-coordinated organoaluminum species. Our findings thus provide a viable approach for the direct identification of Lewis acids and Lewis adducts, not only in the investigated multicomponent organoaluminum compounds but also in inorganic zeolites featuring catalytically active trigonal (AlIII) and strongly perturbed AlIV sites.
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Affiliation(s)
- Libor Kobera
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
| | - Jiri Czernek
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
| | - Sabina Abbrent
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
| | - Hana Mackova
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
| | - Lukas Pavlovec
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
| | - Jan Rohlicek
- Department of Structural Analysis , Institute of Physics of the Czech Academy of Sciences , Na Slovance 2 , Praha 8 , 182 21 , Czech Republic
| | - Jiri Brus
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam. 2 , 162 06 , Prague 6 , Czech Republic
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Das K, Mendiratta S, Datta A, Massera C, Beyene BB, Hung CH. Zn and Cd-Based Coordination Networks: Highly Selective Naked Eye Sensing of Pyridine. ChemistrySelect 2017. [DOI: 10.1002/slct.201602065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kuheli Das
- Institute of Chemistry; Academia Sinica, Nankang; Taipei - 115 Taiwan
| | - Shruti Mendiratta
- Institute of Chemistry; Academia Sinica, Nankang; Taipei - 115 Taiwan
| | - Amitabha Datta
- Institute of Chemistry; Academia Sinica, Nankang; Taipei - 115 Taiwan
| | - Chiara Massera
- Dipartimento di Chimica; Universita degli Studi di Parma; Viale delle Scienze, 17/A 43124 Parma Italy
| | - Belete B. Beyene
- Institute of Chemistry; Academia Sinica, Nankang; Taipei - 115 Taiwan
| | - Chen-Hsiung Hung
- Institute of Chemistry; Academia Sinica, Nankang; Taipei - 115 Taiwan
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