1
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Panja A, Paul S, Moreno-Pineda E, Herchel R, Jana NC, Brandão P, Novitchi G, Wernsdorfer W. Insight into ferromagnetic interactions in Cu II-Ln III dimers with a compartmental ligand. Dalton Trans 2024; 53:2501-2511. [PMID: 38205580 PMCID: PMC10845014 DOI: 10.1039/d3dt03557c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
In the last two decades, efforts have been devoted to obtaining insight into the magnetic interactions between CuII and LnIII utilizing experimental and theoretical means. Experimentally, it has been observed that the exchange coupling (J) in CuII-LnIII systems is often found to be ferromagnetic for ≥4f7 metal ions. However, exchange interactions at sub-Kelvin temperatures between CuII and the anisotropic/isotropic LnIII ions are not often explored. In this report, we have synthesized a series of heterobimetallic [CuLn(HL)(μ-piv)(piv)2] complexes (LnIII = Gd (1), Tb (2), Dy (3) and Er (4)) from a new compartmental Schiff base ligand, N,N'-bis(3-methoxy-5-methylsalicylidene)-1,3-diamino-2-propanol (H3L). X-ray crystallographic analysis reveals that all four complexes are isostructural and isomorphous. Magnetic susceptibility measurements reveal a ferromagnetic coupling between the CuII ion and its respective LnIII ion for all the complexes, as often observed. Moreover, μ-SQUID studies, at sub-Kelvin temperatures, show S-shaped hysteresis loops indicating the presence of antiferromagnetic coupling in complexes 1-3. The antiferromagnetic interaction is explained by considering the shortest Cu⋯Cu distance in the crystal structure. The nearly closed loops for 1-3 highlight their fast relaxation characteristics, while the opened loops for 4 might arise from intermolecular ordering. CASSCF calculations allow the quantitative assessment of the interactions, which are further supported by BS-DFT calculations.
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Affiliation(s)
- Anangamohan Panja
- Department of Chemistry, Gokhale Memorial Girls' College, 1/1 Harish Mukherjee Road, Kolkata-700020, India.
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB 721152, India
| | - Sagar Paul
- Physikalisches Institut, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
| | - Eufemio Moreno-Pineda
- Universidad de Panamá, Facultad de Ciencias Naturales, Exactas y Tecnología, Depto. de Química-Física, 0824 Panamá, Panama
- Universidad de Panamá, Facultad de Ciencias Naturales, Exactas y Tecnología, Grupo de Investigación de Materiales, 0824 Panamá, Panama
| | - Radovan Herchel
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Narayan Ch Jana
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB 721152, India
| | - Paula Brandão
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ghenadie Novitchi
- Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, Université Grenoble-Alpes, B.P. 166, 38042 Grenoble Cedex 9, France
| | - Wolfgang Wernsdorfer
- Physikalisches Institut, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
- Institute for Quantum Materials and Technology (IQMT), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen D-76344, Germany
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2
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Kostakis GE. Chemical Chartographisis: a contemporary perspective in molecular design and synthesis. Dalton Trans 2023. [PMID: 38009065 DOI: 10.1039/d3dt02459h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
The use of flexible molecular systems in solution, without strictly controlling their behaviour, has frequently been productive. Their potential could increase by a more holistic view of the reaction(s) process(es) in which they are involved. In this perspective, we introduce a broader approach - "Chemical Chartographisis" - and discuss three projects in detail to illustrate its potential. The topics involve bimetallic 3d/4f species and coordination compounds built from benzotriazole-based and (a)symmetric salan ligands and focus on catalytic and, in less detail, biological-related examples.
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Affiliation(s)
- George E Kostakis
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK.
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3
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Audsley G, Carpenter H, Essien NB, Lai-Morrice J, Al-Hilaly Y, Serpell LC, Akien GR, Tizzard GJ, Coles SJ, Ulldemolins CP, Kostakis GE. Chiral Co 3Y Propeller-Shaped Chemosensory Platforms Based on 19F-NMR. Inorg Chem 2023; 62:2680-2693. [PMID: 36716401 PMCID: PMC9930122 DOI: 10.1021/acs.inorgchem.2c03737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Two propeller-shaped chiral CoIII3YIII complexes built from fluorinated ligands are synthesized and characterized by single-crystal X-ray diffraction (SXRD), IR, UV-vis, circular dichroism (CD), elemental analysis, thermogravimetric analysis (TGA), electron spray ionization mass spectroscopy (ESI-MS), and NMR (1H, 13C, and 19F). This work explores the sensing and discrimination abilities of these complexes, thus providing an innovative sensing method using a 19F NMR chemosensory system and opening new directions in 3d/4f chemistry. Control experiments and theoretical studies shed light on the sensing mechanism, while the scope and limitations of this method are discussed and presented.
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Affiliation(s)
- Gabrielle Audsley
- Department
of Chemistry, School of Life Sciences, University
of Sussex, Brighton BN1 9QJ, UK
| | - Harry Carpenter
- Department
of Chemistry, School of Life Sciences, University
of Sussex, Brighton BN1 9QJ, UK
| | - Nsikak B. Essien
- Department
of Chemistry, School of Life Sciences, University
of Sussex, Brighton BN1 9QJ, UK
| | - James Lai-Morrice
- Department
of Chemistry, School of Life Sciences, University
of Sussex, Brighton BN1 9QJ, UK
| | - Youssra Al-Hilaly
- Sussex
Neuroscience, School of Life Sciences, University
of Sussex, Brighton BN1 9QG, UK,Chemistry
Department, College of Science, Mustansiriyah
University, Baghdad 10001, Iraq
| | - Louise C. Serpell
- Sussex
Neuroscience, School of Life Sciences, University
of Sussex, Brighton BN1 9QG, UK
| | - Geoffrey R. Akien
- Department
of Chemistry, Lancaster University, Lancaster LA1 4YB, UK
| | - Graham J. Tizzard
- UK
National Crystallography Service, Chemistry, University of Southampton, Southampton SO1 71BJ, UK
| | - Simon J. Coles
- UK
National Crystallography Service, Chemistry, University of Southampton, Southampton SO1 71BJ, UK
| | | | - George E. Kostakis
- Department
of Chemistry, School of Life Sciences, University
of Sussex, Brighton BN1 9QJ, UK,
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4
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5
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An Q, Pan B, Li L, Peng X, Zeng M. Exploring the Pyrolysis Mechanism towards
OER
Performance Optimization of Salophen‐ligated Binuclear Cobalt Complex
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qi An
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering Hubei University Wuhan Hubei 430062 China
| | - Bingxin Pan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering Hubei University Wuhan Hubei 430062 China
| | - Li Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering Hubei University Wuhan Hubei 430062 China
| | - Xu Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering Hubei University Wuhan Hubei 430062 China
| | - Ming‐Hua Zeng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry & Chemical Engineering Hubei University Wuhan Hubei 430062 China
- Department of Chemistry and Pharmaceutical Sciences Guangxi Normal University, Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources Guilin Guangxi 541004 China
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6
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Boyce SAJ, Moutet J, Niederegger L, Simler T, Nocton G, Hess CR. Influence of a Lanthanide Ion on the Ni Site of a Heterobimetallic 3d-4f Mabiq Complex. Inorg Chem 2021; 60:403-411. [PMID: 33319984 DOI: 10.1021/acs.inorgchem.0c03058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work presents the synthesis and characterization of a 3d-4f bimetallic complex based on the redox-active macrocyclic biquinazoline ligand, Mabiq. The mixed Yb-Ni complex, [(Cp*)2Yb(Mabiq)Ni]BArF (3), was synthesized upon reaction of [NiII(Mabiq)]BArF (2) with (Cp*)2YbII(OEt2). The molecular structures of 3 and its sister complex, [(Cp*)2Yb(Mabiq)Ni][(Cp*)2Yb(OTf)2] (1), confirmed the presence of a Yb(III) center and a reduced Ni-Mabiq unit. Spectroscopy (absorption and NMR), cyclic voltammetry, and magnetic susceptibility studies were employed to analyze the electronic structure of 3, which is best described by the [(Cp*)2YbIII(Mabiq•)NiII]+ formulation. Notably, the ligand-centered radical is delocalized over both the diketiminate and bipyrimidine units of the Mabiq ligand. The magnetic susceptibility and variable temperature NMR studies for 3 denote coupling between the Ni-Mabiq site and the peripheral Yb center-previously unobserved in 3d-3d Mabiq complexes. The complex nature of the exchange interactions is highlighted by the multiconfigurational ground state for 3, comprising nearly degenerate singlet and triplet states.
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Affiliation(s)
- Stuart A J Boyce
- Department of Chemistry and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany.,School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Jules Moutet
- LCM, CNRS, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Cedex Palaiseau, France
| | - Lukas Niederegger
- Department of Chemistry and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Thomas Simler
- LCM, CNRS, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Cedex Palaiseau, France
| | - Grégory Nocton
- LCM, CNRS, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Cedex Palaiseau, France
| | - Corinna R Hess
- Department of Chemistry and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
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7
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8
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Song XQ, Xia XL, Song FQ, Liu GH, Wang L. Tuning the coordination behavior of an unexplored asymmetric multidentate ligand for developing diverse heterometallic architectures with luminescent and magnetic properties. CrystEngComm 2021. [DOI: 10.1039/d0ce01298j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Three types of heterometallic species including metal clusters and a metal macrocycle have been developed by tuning the coordination behavior of a new asymmetric ligand with metal cations and anions.
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Affiliation(s)
- Xue-Qin Song
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Xue-Li Xia
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Fu-Qiang Song
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Guo-Hua Liu
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Li Wang
- College of Chemistry and Chemical Engineering
- Xi'an Shiyou University
- Xi'an 710065
- P.R. China
- State Key Laboratory of Coordination Chemistry
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9
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A Quasi-Liner {MnIIDyIIIMnII} Cluster Featuring In Situ Schiff Base Ligand Transformation. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01901-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Yu Y, Pan X, Cui C, Luo X, Li N, Mei H, Xu Y. A Series Three-Dimensional Ln 4Cr 4 (Ln = Gd, Tb, Er) Heterometallic Cluster-Based Coordination Polymers Containing Interesting Nanotubes Exhibiting High Magnetic Entropy. Inorg Chem 2020; 59:5593-5599. [PMID: 32227928 DOI: 10.1021/acs.inorgchem.0c00281] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of novel 3D 3d-4f heterometallic cluster-based coordination polymers, [Ln4Cr4(μ3-O)4(μ4-O)4(NA)8(H2O)12]·xH2O (Ln = 1-Gd, 2-Tb, 3-Er; HNA = nicotinic acid; x = 13 (1-Gd), 11.33 (2-Tb), 15 (3-Er)), have been successfully synthesized by hydrothermal method using nicotinic acid as bridging ligand. The single-crystal X-ray diffraction (SCXRD) analysis indicated that the basic unit of Ln4Cr4 shows a butterfly-shaped structure. Furthermore, each Ln4Cr4 cluster connects with other four Ln4Cr4 clusters by bridging NA- ligands to form a 3D structure containing interesting 1D honeycomb-shaped coordination nanotubes. The variable temperature magnetic susceptibility measurements of compound 1 revealed that the existence of antiferromagnetic (AF) coupling between the metal ions in the Gd4Cr4 clusters. Field-dependent isothermal magnetization studies displayed that the magnetic entropy change (-ΔSm) value of 1-Gd reached 22.05 J K-1 kg-1.
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Affiliation(s)
- Yanzhao Yu
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Xingxiang Pan
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Chenhui Cui
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Ximing Luo
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Ningfang Li
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Hua Mei
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Yan Xu
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China.,Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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11
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Zhou Z, Li MX, Sui Y, Nfor EN, Wang ZX. Two 1D homochiral heterometallic chains: crystal structures, spectra, ferroelectricity and ferromagnetic properties. RSC Adv 2020; 10:7004-7010. [PMID: 35493874 PMCID: PMC9049737 DOI: 10.1039/d0ra00732c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 02/09/2020] [Indexed: 11/22/2022] Open
Abstract
Two new homo chiral Cu-Ln (Ln = Gd and Ho) compounds bearing a chiral Schiff base ligand (1R,3S)-N',N''-bis[3-methoxysalicylidene]-1,3-diamino-1,2,2-trimethylcyclopentane (H2L) have been synthesized and characterized by elemental analysis, IR spectroscopic and single-crystal X-ray diffraction techniques. The compounds were found to exhibit 1D zig-zag skeletons with double μ-1,5 bridging dicyanamide anions. Circular dichroism (CD) spectra have been used to verify their chiroptical activities. Magnetic studies suggest that 1 and 2 hold the same magnetic behavior with the dinuclear compounds presenting ferromagnetic interaction. Furthermore, both compounds show ferroelectricity with the remnant polarization (P r) value of 0.23 and 0.18 μC cm-2 at room temperature, respectively.
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Affiliation(s)
- Zhuoqiang Zhou
- Department of Pharmaceutical Engineering, College of Materials & Energy, South China Agricultural University Guangzhou 510642 PR China
| | - Ming-Xing Li
- Department of Chemistry, Centre for Supramolecular Chemistry and Catalysis, Shanghai University Shanghai 200444 PR China
| | - Yan Sui
- School of Chemistry and Chemical Engineering, The Key Laboratory of Coordination Chemistry of Jiangxi Province, Jinggangshan University Ji'an Jiangxi 343009 PR China
| | - Emmanuel N Nfor
- Department of Chemistry, Faculty of Science, University of Buea POBox 63 Buea Cameroon
| | - Zhao-Xi Wang
- Department of Chemistry, Centre for Supramolecular Chemistry and Catalysis, Shanghai University Shanghai 200444 PR China
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12
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Zhao X, Wang Y, Bao D, Zhang F, Wu W, Xu F, Zhang Q, Li Y. A Series of High‐nuclear 3
d
‐4
f
(Fe
III
8
Ln
III
2
) Complexes: Syntheses, Structures, and Magnetic Properties. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao‐Qing Zhao
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Nankai University Tianjin 300071 P. R. China
| | - Yi‐Yan Wang
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Dong‐Xu Bao
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Fen‐Hang Zhang
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Wei Wu
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Fu‐Sen Xu
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Qiu‐Hong Zhang
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
| | - Yun‐Chun Li
- College of ScienceSichuan Agricultural University Ya'an 625014 P. R. China
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13
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Pavlishchuk A, Naumova D, Zeller M, Calderon Cazorla S, Addison AW. The crystal structures of { LnCu 5} 3+ ( Ln = Gd, Dy and Ho) 15-metallacrown-5 complexes and a reevaluation of the isotypic Eu III analogue. Acta Crystallogr E Crystallogr Commun 2019; 75:1215-1223. [PMID: 31417795 PMCID: PMC6690475 DOI: 10.1107/s205698901900999x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 07/12/2019] [Indexed: 11/10/2022]
Abstract
Three new isotypic heteropolynuclear complexes, namely penta-aqua-carbonato-penta-kis-(glycinehydroxamato)nitrato-penta-copper(II)lanthanide(III) x-hydrate, [LnCu5(GlyHA)5(CO3)(NO3)(H2O)5]·xH2O (GlyHA2- is glycine-hydrox-amate, N-hy-droxy-glycinamidate or amino-aceto-hydroxamate, C2H4N2O2 2-), with lanthanide(III) (Ln III) = gadolinium (Gd, 1, x = 3.5), dysprosium (Dy, 2, x = 3.28) and holmium (Ho, 3, x = 3.445), within a 15-metallacrown-5 class were obtained on reaction of lanthanide(III) nitrate, copper(II) acetate and sodium glycinehydroxamate. Complexes 1-3 contain five copper(II) ions and five bridging GlyHA2- anions, forming a [CuGlyHA]5 metallamacrocyclic core. The Ln III ions are coordinated to the metallamacrocycle through five O-donor hydroxamates. The electroneutrality of complexes 1-3 is achieved by a bidentate carbonate anion coordinated to the Ln III ion and a monodentate nitrate anion coordinated apically to one of the copper(II) ions of the metallamacrocycle. The lattice parameters of complexes 1-3 are similar to those previously reported for an EuIII-CuII 15-metallacrown-5 complex with glycine-hydroxamate of proposed composition [EuCu5(GlyHA)5(OH)(NO3)2(H2O)4]·3.5H2O [Stemmler et al. (1999 ▸). Inorg. Chem. 38, 2807-2817]. High-quality X-ray data obtained for 1-3 have allowed a re-evaluation of the X-ray data solution proposed earlier for the EuCu5 complex and suggest that the formula is actually [EuCu5(GlyHA)5(CO3)(NO3)(H2O)5]·3.5H2O.
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Affiliation(s)
- Anna Pavlishchuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 62, Kyiv, 01601, Ukraine
- L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine, Prospect Nauki 31, Kyiv 03028, Ukraine
| | - Dina Naumova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 62, Kyiv, 01601, Ukraine
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907-2084, USA
| | | | - Anthony W. Addison
- Department of Chemistry, Drexel University, Philadelphia, PA 19104-2816, USA
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14
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Sai Manoj Gorantla NVT, Guruprasad Reddy P, Abdul Shakoor SM, Mandal R, Roy S, Mondal KC. Tetranuclear 3 d/4 f Coordination Complexes as Homogeneous Catalysts for Bis(indolyl)methane Syntheses. ChemistrySelect 2019. [DOI: 10.1002/slct.201901215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Pulikanti Guruprasad Reddy
- Department of ChemistryIndian Institute of Science Education and Research (IISER) Tirupati Karakambadi Road Tirupati- 517507, Andhra Pradesh India
| | - Sayed Mohmmed Abdul Shakoor
- Department of ChemistryIndian Institute of Science Education and Research (IISER) Tirupati Karakambadi Road Tirupati- 517507, Andhra Pradesh India
| | - Rajkumar Mandal
- Department of ChemistryIndian Institute of Technology-Madras Chennai- 600036 India
| | - Sudipta Roy
- Department of ChemistryIndian Institute of Science Education and Research (IISER) Tirupati Karakambadi Road Tirupati- 517507, Andhra Pradesh India
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15
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Cao Y, Liu JF, Qin XM, Zhang Y, Li HY, Bian HD, Liu HF, Huang FP. Bis((pyridine-2-yl)-1,2,4-triazol-5-yl) Methane as Ligand in Three Zn(II) Complexes: Synthesis, Crystal Structures and Luminescent Properties. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01593-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Griffiths K, Kühne IA, Tizzard GJ, Coles SJ, Kostakis GE, Powell AK. Twists to the Spin Structure of the Ln 9-diabolo Motif Exemplified in Two {Zn 2Ln 2}[Ln 9]{Zn 2} Coordination Clusters. Inorg Chem 2019; 58:2483-2490. [PMID: 30702868 DOI: 10.1021/acs.inorgchem.8b03048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Two pentadecanuclear Zn4Ln11 [with Ln = Gd(1) or Dy(2)] coordination clusters, best formulated as {Zn2Ln2}[Ln9]{Zn2}, are presented. The central {Ln9} diabolo core has a {Zn2Ln2} handle motif pulling at two outer Ln ions of the central core via two {ZnLn} units, which also invest the system with C2 point symmetry. The resulting cluster motif is supported on two Zn "feet", corresponding to the {Zn2} unit in the formula. A thorough investigation of the magnetic properties in the light of the properties of previously reported {Ln9} diabolo compounds was undertaken. Up to now, the spin structure of such diabolo motifs usually proves ambiguous. Our magnetic studies show that the orientation of the central spin in the {Gd9} diabolo plays a decisive role. In stabilizing the core by attachment of the {Zn}2+ "feet" and using the C2 symmetry related {ZnGd}5+ handles to influence the spin direction of the central Gd of the {Gd9} diabolo, we can understand why the "naked" {Gd9} diabolo shows ambiguous spin structure. This then allowed us to elucidate the single-molecule magnetic (SMM) properties of the Dy-based compound 2 through disentangling the magnetic properties of the isostructural Gd-based compound 1.
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Affiliation(s)
- Kieran Griffiths
- Department of Chemistry, School of Life Sciences , University of Sussex , Brighton BN1 9QJ , United Kingdom
| | - Irina A Kühne
- Institut für Anorganische Chemie , Karlsruher Institut für Technologie (KIT) , Engesserstr. 15 , 76131 Karlsruhe , Germany
| | - Graham J Tizzard
- UK National Crystallographic Service, Chemistry , University of Southampton , Southampton , SO1 71BJ , United Kingdom
| | - Simon J Coles
- UK National Crystallographic Service, Chemistry , University of Southampton , Southampton , SO1 71BJ , United Kingdom
| | - George E Kostakis
- Department of Chemistry, School of Life Sciences , University of Sussex , Brighton BN1 9QJ , United Kingdom
| | - Annie K Powell
- Institut für Anorganische Chemie , Karlsruher Institut für Technologie (KIT) , Engesserstr. 15 , 76131 Karlsruhe , Germany.,Institut für Nanotechnologie , Karlsruher Institut für Technologie (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
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17
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Xu R, Hua L, Li X, Yao Y, Leng X, Chen Y. Rare-earth/zinc heterometallic complexes containing both alkoxy-amino-bis(phenolato) and chiral salen ligands: synthesis and catalytic application for copolymerization of CO2 with cyclohexene oxide. Dalton Trans 2019; 48:10565-10573. [DOI: 10.1039/c9dt00064j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ten rare-earth/zinc heterometallic complexes were synthesized and their catalytic application for copolymerization of CO2 with cyclohexene oxide was explored.
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Affiliation(s)
- Ruoyu Xu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Linyan Hua
- Key Laboratory of Organic Synthesis of Jiangsu Province and State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Xiang Li
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province and State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Xuebing Leng
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Yaofeng Chen
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
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18
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Stamatatos TC, Rentschler E. Organic chelate-free and azido-rich metal clusters and coordination polymers from the use of Me3SiN3: a new synthetic route to complexes with beautiful structures and diverse magnetic properties. Chem Commun (Camb) 2019; 55:11-26. [DOI: 10.1039/c8cc08854c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new synthetic route to structurally novel and magnetically interesting 3d-metal azido clusters and coordination polymers is presented; the key reagent for the preparation of solely azido-bridged molecule-based species is the organic azide precursor Me3SiN3.
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Affiliation(s)
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- D-55128 Mainz
- Germany
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19
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Gu YN, Zhao D, Yu H, Ge R, Li Z, Tian CB, Li XX, Sun YQ, Zheng ST. Incorporating polyoxometalates and organic ligands to pursue 3d–4f heterometallic clusters: a series of {Cr4Ln4} clusters stabilized by phthalic acid and [SiW12O40]4−. RSC Adv 2019; 9:13543-13549. [PMID: 35519577 PMCID: PMC9063906 DOI: 10.1039/c9ra01731c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/23/2019] [Indexed: 12/04/2022] Open
Abstract
By introduction of trilacunary Keggin-type polyoxometalate to the hydrothermal reaction system of Cr3+, Ln3+ and phthalic acid, a series of novel {Cr4Ln4} heterometallic clusters with the formula Cs2[Cr4Ln4(μ4-O)4(μ3-O)4(C8H4O4)4(H2O)12](H3SiW12O40)Cl·23H2O (1-Ln, Ln = Ce, Pr, Nd) and [Cr4Ln4(μ4-O)4(μ3-O)4(C8H4O4)4(H2O)10](H6SiW12O40)Cl2·18H2O (2-Ln, Ln = Sm, Eu, Gd, Tb, Dy, Ho, Er) have been obtained. Single-crystal structural analyses show that 1-Ln and 2-Ln constitute the first cases of Cr–Ln heterometallic clusters stabilized by inorganic polyoxometalate anions and organic ligands. Optical spectra studies demonstrate that 1-Ln and 2-Ln are narrow-gap semiconductors with band gaps of about 1.5 eV. Magnetic investigation shows that compound 2-Dy is a potential single molecule magnet. By introduction of trilacunary Keggin-type polyoxometalate to the hydrothermal reaction system of Cr3+, Ln3+ and phthalic acid, a series of novel {Cr4Ln4} heterometallic clusters have been obtained.![]()
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Affiliation(s)
- Ya-Nan Gu
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Dan Zhao
- Fuqing Branch of Fujian Normal University
- Fuqing
- China
| | - Hao Yu
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Rui Ge
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Zhong Li
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Chong-Bian Tian
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Xin-Xiong Li
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Yan-Qiong Sun
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
| | - Shou-Tian Zheng
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- China
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20
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Krause J, Alexandropoulos DI, Carrella LM, Rentschler E, Stamatatos TC. Increasing the nuclearity and spin ground state in a new family of ferromagnetically-coupled {Ni 10} disk-like complexes bearing exclusively end-on bridging azido ligands. Chem Commun (Camb) 2018; 54:12499-12502. [PMID: 30345439 DOI: 10.1039/c8cc07722c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesis of a new family of ferromagnetically-coupled {Ni10} clusters counterbalanced by various [Ln(NO3)5]2- ions is herein described. The resulting compounds are organic chelate-free and the metal ions are exclusively bridged by end-on azido ligands to stabilize a beautiful disk-like topology reminiscent of the structure of the brucite mineral.
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Affiliation(s)
- Jasmin Krause
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Dimitris I Alexandropoulos
- Department of Chemistry, 1812 Sir Isaac Brock Way, Brock University, L2S 3A1 St. Catharines, Ontario, Canada.
| | - Luca M Carrella
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany.
| | - Theocharis C Stamatatos
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany. and Department of Chemistry, 1812 Sir Isaac Brock Way, Brock University, L2S 3A1 St. Catharines, Ontario, Canada.
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21
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Kumar P, Griffiths K, Anson CE, Powell AK, Kostakis GE. A tetranuclear CuII2DyIII2 coordination cluster as a Suzuki (C–C) coupling reaction promoter. Dalton Trans 2018; 47:17202-17205. [DOI: 10.1039/c8dt04371j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The air stable and high yielding tetranuclear coordination cluster [CuII2DyIII2L4(NO3)2(CH3CN)2]·2(CH3CN) promotes the Suzuki coupling reaction of phenylboronic acid with substituted aryl halides under environmentally benign conditions.
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Affiliation(s)
- Prashant Kumar
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton BN19QJ
- UK
| | - Kieran Griffiths
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton BN19QJ
- UK
| | - Christopher E. Anson
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institute of Nanotechnology
| | - George E. Kostakis
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton BN19QJ
- UK
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