1
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Search for Structurally Resembled Mn/Ca Cubane Core of the Oxygen Evolving Complex of Photosystem II Yielded MnIV, MnIII3MnII and MnIII2CaII2 Entities: Structure and Magnetism. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Mondal S, Behera SP, Alamgir M, Baskar V. In Situ Assembled Polynuclear Zinc Oxo Clusters Using Modified Schiff Bases as Ligands. ACS OMEGA 2022; 7:1090-1099. [PMID: 35036772 PMCID: PMC8756576 DOI: 10.1021/acsomega.1c05673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
A series of different cores and nuclearity zinc metal clusters 1-5 have been synthesized using Zn(ClO4)2·6H2O, Schiff-base primary ligands, and dibenzoyl methane (DBM) or monoethanolamine (MEA) as co-ligand in a room-temperature reaction. The structure of the complexes is characterized using single-crystal X-ray diffraction. Among them, (1) [Zn(L1)(DBM)] is mononuclear; (2) [Zn4(L2)2(DBM)4], (3) [Zn4(L2)4(H2O)2(ClO4)2]·2CH2Cl2, and (4) [Zn4(L3)2(DBM)4] have a cubane core; and (5) [Zn4(L4)4(MEA)2(ClO4)2] has a ladderlike core structure. Compounds 1-5 have also been characterized using UV-vis absorption and emission spectroscopies. For an in-depth understanding of the absorption spectra of 1 and 3, density functional theory (DFT) calculations have been performed, which suggest that the transitions correspond to the π → π* intraligand charge transfer (ILCT) transitions.
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Affiliation(s)
- Suman Mondal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | | | - Mohammed Alamgir
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Viswanathan Baskar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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3
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Virachotikul A, Laiwattanapaisarn N, Wongmahasirikun P, Piromjitpong P, Chainok K, Phomphrai K. Ring-Opening Copolymerizaton of Cyclohexene Oxide and Succinic Anhydride by Zinc and Magnesium Schiff-Base Complexes Containing Alkoxy Side Arms. Inorg Chem 2020; 59:8983-8994. [PMID: 32408738 DOI: 10.1021/acs.inorgchem.0c00839] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The ring-opening copolymerization (ROCOP) of epoxides and cyclic anhydrides is a promising method for the synthesis of new polyesters with various polymer properties. Among previously reported metal catalysts for ROCOP, the Schiff-base complexes have gained significant attention because of their ease of synthesis and modification. In this work, zinc and magnesium complexes containing Schiff-base ligands with different alkoxy side arms [-(CH2)2O- and -(CH2)3O-] were synthesized and shown to have a cubane metal core by X-ray crystal structures. All complexes were studied in the ROCOP of cyclohexene oxide (CHO) and succinic anhydride (SA) in toluene at 110 °C. The zinc complex having a shorter side arm is the most active catalyst for copolymerization, giving poly(CHO-alt-SA) with narrow dispersity and negligible ether linkage. On the other hand, magnesium complexes were not active because of the formation of stable carboxylate species. The detailed analysis of polyester obtained from zinc complexes unexpectedly revealed three different types of polymer structures occurring at different polymerization times. Cyclic polymer was generated at the beginning by intramolecular transesterification of the alkoxy side arm, giving a low-molecular-weight polyester. At higher conversion, cyclization diminished, giving just a linear polyester but with minor competitive formation of higher-molecular-weight polyester having cyclohexanediol as an end group. On the basis of a thorough understanding of the polymerization mechanism, the desired cyclic poly(CHO-alt-SA) was successfully synthesized using a low monomer/catalyst ratio.
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Affiliation(s)
- Arnut Virachotikul
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan, Rayong 21210, Thailand
| | - Nattiya Laiwattanapaisarn
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan, Rayong 21210, Thailand
| | - Phonpimon Wongmahasirikun
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan, Rayong 21210, Thailand
| | - Parichat Piromjitpong
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan, Rayong 21210, Thailand
| | - Kittipong Chainok
- Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani 12121, Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan, Rayong 21210, Thailand.,Research Network of NANOTEC-VISTEC on Nanotechnology for Energy, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand
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4
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Gungor E, Kara H. Ferromagnetic coupling in two tetranuclear Ni(II) complexes with cubane–like Ni4(μ3–O)4 core: Structure, spectroscopic and luminescence properties. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Sun H, Gao Q, Chhiba S, Chibueze OJ, Li Y. Tetranuclear Zinc and Cobalt Clusters with Dicubane‐Type Topology: Synthesis, Structures, Luminescent and Magnetic Properties. ChemistrySelect 2019. [DOI: 10.1002/slct.201902031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hao Sun
- College of ChemistryChemical Engineering and MaterialsScienceSoochow University Suzhou 215123 China
| | - Qian Gao
- College of ChemistryChemical Engineering and MaterialsScienceSoochow University Suzhou 215123 China
| | - Shahil Chhiba
- Department of Chemical EngineeringUniversity of Waterloo Waterloo, ON N2 L 3G1 Canada
| | - Okolu John Chibueze
- Department of Nanotechnology EngineeringUniversity of Waterloo Waterloo, ON N2 L 3G1 Canada
| | - Yahong Li
- College of ChemistryChemical Engineering and MaterialsScienceSoochow University Suzhou 215123 China
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6
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Fanna DJ, Craze AR, Etchells I, Bhattacharyya S, Clegg JK, Moore EG, Marjo CE, Trinchi A, Wei G, Reynolds JK, Li F. Anion tuning of Zn 2+ architectures using a Tris-base salicylic ligand. CrystEngComm 2019. [DOI: 10.1039/c9ce00749k] [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
In this study, a hydroxyl-rich Schiff base ligand, H4L, and its resulting complexes with ZnCl2, Zn(CH3COO)2 and Zn(ClO4)2 were explored.
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Affiliation(s)
- Daniel J. Fanna
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
- CSIRO Manufacturing
| | | | - Isaac Etchells
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Brisbane St Lucia
- Australia
| | | | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Brisbane St Lucia
- Australia
| | - Evan G. Moore
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Brisbane St Lucia
- Australia
| | | | | | - Gang Wei
- CSIRO Manufacturing
- Lindfield
- Australia
| | - Jason K. Reynolds
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
| | - Feng Li
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
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7
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Photoluminescence and Magnetism Study of Blue Light Emitting the Oxygen-Bridged Open-Cubane Cobalt(II) Cluster. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1406-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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Mahato M, Van Hecke K, Nayek HP. Two mononuclear cobalt(III) complexes exhibiting phenoxazinone synthase activity. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4336] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mamata Mahato
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines); Dhanbad 826004 Jharkhand India
| | - Kristof Van Hecke
- XStruct, Department of Chemistry; Ghent University; Krijgslaan 281-S3 B-9000 Ghent Belgium
| | - Hari Pada Nayek
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines); Dhanbad 826004 Jharkhand India
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9
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Coban MB, Gungor E, Kara H, Baisch U, Acar Y. New mixed valence defect dicubane cobalt(II)/cobalt(III) complex: Synthesis, crystal structure, photoluminescence and magnetic properties. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.049] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Liu ZY, Zou HH, Wang R, Chen MS, Liang FP. Structure and magnetism of two chair-shaped hexanuclear dysprosium(iii) complexes exhibiting slow magnetic relaxation. RSC Adv 2018; 8:767-774. [PMID: 35538959 PMCID: PMC9076819 DOI: 10.1039/c7ra11378a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 12/18/2017] [Indexed: 12/22/2022] Open
Abstract
Two novel hexanuclear DyIII complexes with polyhydroxy Schiff-base ligands, [Dy6(L1)4(μ3-OH)4(MeOH)4]Cl2·2MeOH·2MeCN (1) and [Dy6(HL2)2(μ3-OH)2(μ3-OCH3)2(piv)10(MeOH)2] (2) (H3L1 = N,N′-bis(3-methoxysalicylidene)(propylene-2-ol)-1,3-diamine, H3L2 = 2,3-dihydroxypropylimino)methyl)-6-methoxyphenol, piv = pivalate), have been prepared under solvothermal conditions and structurally characterized by single-crystal X-ray diffraction, elemental analyses, thermal analyses, and IR spectroscopy. Each of the hexanuclear complexes is constructed with Dy3 triangular motifs as building blocks, and the six DyIII ions are arranged in a chair-shaped conformation. Variable-temperature magnetic susceptibility measurements in the temperature range of 2–300 K indicate dominant ferromagnetic exchange interactions between the DyIII ions in the complexes. Both complexes exhibit slow magnetic relaxation behavior. We report two novel chair-shaped hexanuclear DyIII complexes with different polyhydroxy Schiff-base ligands. Both complexes are constructed with Dy3 triangular motifs as building blocks and exhibit slow magnetic relaxation behavior at low temperature.![]()
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Affiliation(s)
- Zi-Yuan Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Hua-Hong Zou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Rong Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Man-Sheng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Fu-Pei Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry & Pharmacy of Guangxi Normal University
- Guilin 541004
- P. R. China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials
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11
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Ghosh S, Spannenberg A, Mejía E. Cubane-Type Polynuclear Zinc Complexes Containing Tridentate Schiff
Base Ligands: Synthesis, Characterization, and Ring-Opening Polymerization Studies of rac
-Lactide and ε
-Caprolactone. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700176] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Swarup Ghosh
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Anke Spannenberg
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Esteban Mejía
- Leibniz Institute for Catalysis; University of Rostock; Albert-Einstein-Str. 29a 18059 Rostock Germany
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12
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Song F, Moré R, Schilling M, Smolentsev G, Azzaroli N, Fox T, Luber S, Patzke GR. {Co4O4} and {CoxNi4–xO4} Cubane Water Oxidation Catalysts as Surface Cut-Outs of Cobalt Oxides. J Am Chem Soc 2017; 139:14198-14208. [DOI: 10.1021/jacs.7b07361] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fangyuan Song
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - René Moré
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Mauro Schilling
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | | | | | - Thomas Fox
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Sandra Luber
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Greta R. Patzke
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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13
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Abrahams A, Madanhire T, Hosten E, Betz R. Synthesis and characterization of lanthanide complexes prepared with 2-(( E)-(1-hydroxy-2-methylpropan-2-ylimino)methyl)-6-methoxyphenol. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1319568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Abubak’r Abrahams
- Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
| | - Tatenda Madanhire
- Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
| | - Eric Hosten
- Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
| | - Richard Betz
- Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
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14
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Kocak C, Oylumluoglu G, Donmez A, Coban MB, Erkarslan U, Aygun M, Kara H. Crystal structure and photoluminescence properties of a new monomeric copper(II) complex: bis(3-{[(3-hydroxypropyl)imino]methyl}-4-nitrophenolato-κ 3O,N,O')copper(II). ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:414-419. [PMID: 28469068 DOI: 10.1107/s2053229617005976] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 04/20/2017] [Indexed: 11/10/2022]
Abstract
Copper(II)-Schiff base complexes have attracted extensive interest due to their structural, electronic, magnetic and luminescence properties. The title novel monomeric CuII complex, [Cu(C10H11N2O4)2], has been synthesized by the reaction of 3-{[(3-hydroxypropyl)imino]methyl}-4-nitrophenol (H2L) and copper(II) acetate monohydrate in methanol, and was characterized by elemental analysis, UV and IR spectroscopies, single-crystal X-ray diffraction analysis and a photoluminescence study. The CuII atom is located on a centre of inversion and is coordinated by two imine N atoms, two phenoxy O atoms in a mutual trans disposition and two hydroxy O atoms in axial positions, forming an elongated octahedral geometry. In the crystal, intermolecular O-H...O hydrogen bonds link the molecules to form a one-dimensional chain structure and π-π contacts also connect the molecules to form a three-dimensional structure. The solid-state photoluminescence properties of the complex and free H2L have been investigated at room temperature in the visible region. When the complex and H2L are excited under UV light at 349 nm, the complex displays a strong green emission at 520 nm and H2L displays a blue emission at 480 nm.
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Affiliation(s)
- Cagdas Kocak
- Department of Physics, Molecular Nano-Materials Laboratory, Mugla Sitki Kocman University, Mugla, Turkey
| | - Gorkem Oylumluoglu
- Department of Physics, Molecular Nano-Materials Laboratory, Mugla Sitki Kocman University, Mugla, Turkey
| | - Adem Donmez
- Department of Physics, Molecular Nano-Materials Laboratory, Mugla Sitki Kocman University, Mugla, Turkey
| | - M Burak Coban
- Department of Physics, Balikesir University, Balikesir, Turkey
| | - Ugur Erkarslan
- Department of Physics, Molecular Nano-Materials Laboratory, Mugla Sitki Kocman University, Mugla, Turkey
| | - Muhittin Aygun
- Department of Physics, 9 Eylul University, Izmir, Turkey
| | - Hulya Kara
- Department of Physics, Molecular Nano-Materials Laboratory, Mugla Sitki Kocman University, Mugla, Turkey
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15
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Gungor E. A new stepped tetranuclear copper(II) complex: synthesis, crystal structure and photoluminescence properties. Acta Crystallogr C Struct Chem 2017; 73:393-398. [PMID: 28469065 DOI: 10.1107/s2053229617004946] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/30/2017] [Indexed: 01/21/2023] Open
Abstract
Binuclear and tetranuclear copper(II) complexes are of interest because of their structural, magnetic and photoluminescence properties. Of the several important configurations of tetranuclear copper(II) complexes, there are limited reports on the crystal structures and solid-state photoluminescence properties of `stepped' tetranuclear copper(II) complexes. A new CuII complex, namely bis{μ3-3-[(4-methoxy-2-oxidobenzylidene)amino]propanolato}bis{μ2-3-[(4-methoxy-2-oxidobenzylidene)amino]propanolato}tetracopper(II), [Cu4(C11H13NO3)4], has been synthesized and characterized using elemental analysis, FT-IR, solid-state UV-Vis spectroscopy and single-crystal X-ray diffraction. The crystal structure determination shows that the complex is a stepped tetranuclear structure consisting of two dinuclear [Cu2(L)2] units {L is 3-[(4-methoxy-2-oxidobenzylidene)amino]propanolate}. The two terminal CuII atoms are four-coordinated in square-planar environments, while the two central CuII atoms are five-coordinated in square-pyramidal environments. The solid-state photoluminescence properties of both the complex and 3-[(2-hydroxy-4-methoxybenzylidene)amino]propanol (H2L) have been investigated at room temperature in the visible region. When the complex and H2L are excited under UV light at 349 nm, the complex displays a strong blue emission at 469 nm and H2L displays a green emission at 515 nm.
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Affiliation(s)
- Elif Gungor
- Department of Physics, Faculty of Arts and Sciences, Balikesir University, Balikesir 10145, Turkey
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16
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Sun H, Zhang J, Cai Y, Liu W, Zhang X, Dong Y, Li Y. Syntheses, structures, and magnetic properties of a cubane-like {Co4O4} cluster and a dinuclear CuII compound constructed from a tridentate Schiff base ligand. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.10.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Family of MnIII4LnIII2 (LnIII= SmIII, GdIII, DyIII) coordination clusters: Experimental and theoretical investigations. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Cyanide-bridged trinuclear MnIII–FeIII assembly: Crystal structure, magnetic and photoluminescence behavior. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.02.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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