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Ma LJ, Li X, Yan YJ, Yue YN, Dong WK. An investigation of two heterobimetallic [Cu(II)2Ln(III)] (Ln = La and Ce) complexes of a more flexible bis(salamo)‐type ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Synthesis, crystal structure, fluorescence properties and theoretical calculations of heterobimetallic 3d–4f complex with a flexible bis(salamo)‐type ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133272] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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3
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Yue YN, La YT, Han XJ, Dong WK. Coordination-driven self-assemblies of two hetero‐trinuclear [Cu(II) 2Ln(III)] (Ln = La and Ce) complexes with a flexible bis(salamo)‐type ligand. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2050713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yong-Ning Yue
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, PR China
| | - Ya-Ting La
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, PR China
| | - Xiu-Juan Han
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, PR China
| | - Wen-Kui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, PR China
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Qasem KMA, Khan S, Fitta M, Akhtar MN, AlDamen MA, Shahid M, Saleh HAM, Ahmad M. A new {Cu3-Gd2} cluster as two-in-one functional material with unique topology acting as a refrigerant as well as adsorbent for cationic dye. CrystEngComm 2022. [DOI: 10.1039/d2ce00795a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new heterometallic cluster system, [Cu3Gd2(H3btp)2(OAc)6]3H2O {Cu3-Gd2} is designed by employing 1,3-Bis(tris(hydroxymethyl)methylamino)propane (H6btp) as a ligand. The cluster is characterized by FTIR, TGA, PXRD, SCXRD and topological analyses. The crystallography...
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Yin JJ, Lu TQ, Chen C, Shi HY, Zhuang GL, Zheng J, Fang X, Zheng XY. A new family of decanuclear Ln 7Cr 3 clusters exhibiting a magnetocaloric effect. RSC Adv 2021; 11:17346-17351. [PMID: 35479672 PMCID: PMC9033162 DOI: 10.1039/d1ra02734d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/05/2021] [Indexed: 01/16/2023] Open
Abstract
Two dimeric Ln–Cr clusters with formula {Ln(H2O)8[Ln6Cr3(L)6(CH3COO)6(μ3-OH)12(H2O)12]}·(ClO4)6·xH2O (Ln = Gd, x = 35 for 1 and Ln = Dy, x = 45 for 2, HL = 2-pyrazinecarboxylic acid) were obtained by a ligand-controlled hydrolytic method with a mixed ligand system (2-pyrazinecarboxylic acid and acetate). Single crystal structure analysis showed that two trigonal bipyramids of [Gd3Cr2(μ3-OH)6]9+ worked as building blocks in constructing the metal-oxo cluster core of [Gd6Cr3(μ3-OH)12]15+ by sharing a common top – a Cr3+ ion. Additionally, compound 1 forms a three-dimensional framework with a one-dimensional nanopore channel along the a-axis through a hydrogen-bond interaction between the cationic cluster core and the free mononuclear cation [Gd(H2O)8]3+ and the π-bond interactions of the pyrazine groups on the two cationic cluster cores. Magnetic calculations indicated a weak ferromagnetic coupling interaction for Gd⋯Gd and Gd⋯Cr in compound 1, with its magnetic entropy change (−ΔSm) reaching 21.1 J kg−1 K−1 at 5 K, 7 T, while compound 2 displayed an obvious frequency-dependency at Hdc = 2000 Oe. Two decanuclear Ln–Cr clusters Ln7Cr3 were obtained, which formed a three-dimensional framework with one-dimensional nanopore channel through hydrogen-bond and π-bond interactions. Gd7Cr3 had a magnetic entropy change of 21.1 J kg−1 K−1 at 5 K, 7 T.![]()
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Affiliation(s)
- Jia-Jia Yin
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University Hefei 230601 China
| | - Tian-Qi Lu
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University Hefei 230601 China
| | - Cheng Chen
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University Hefei 230601 China
| | - Hai-Yan Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Gui-Lin Zhuang
- College of Chemical Engineering, Zhejiang University of Technology Hangzhou 310032 China
| | - Jun Zheng
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University Hefei 230601 China
| | - Xiaolong Fang
- College of Materials and Chemical Engineering, Anhui Jianzhu University Hefei 230601 China
| | - Xiu-Ying Zheng
- Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University Hefei 230601 China .,State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
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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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Monakhov KY, Wernsdorfer W. A cubane-type nickel single-molecule magnet with exchange-biased quantum tunneling of magnetization. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Yin JJ, Chen C, Zhuang GL, Zheng J, Zheng XY, Kong XJ. Anion-Dependent Assembly of 3d-4f Heterometallic Clusters Ln 5Cr 2 and Ln 8Cr 4. Inorg Chem 2020; 59:1959-1966. [PMID: 31950821 DOI: 10.1021/acs.inorgchem.9b03308] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of heterometallic Ln-Cr clusters with the formulas [Ln5Cr2(H2L)2(OAc)6(μ3-OH)6(H2O)15](ClO4)7·xH2O (Ln = Gd and x = 33 for 1 and Ln = Dy and x = 21 for 2) and [Ln8Cr4(H2L)4(OAc)8(μ3-OH)16(μ4-O)1(H2O)8](Cl)(ClO4)5·10H2O (Ln = Gd for 3 and Ln = Dy for 4) was obtained through the reaction of the acetate ligands 2,2-dimethylolpropionic acid (H3L) and Ln(ClO4)3 in the presence of chromium salts with different anions under the same high pH conditions. X-ray analysis revealed that compound 1 contained a metal unit [Gd3Cr2] displaying the pentagonal bipyramid configuration and that compound 3 was templated by Cl- and ClO4- as a mixed anion template featuring a quadrangular structure. In compound 3, the 12 metal atoms were arranged in a wheel-shaped metal skeleton [Gd8Cr4], which was produced by 4 tetrahedral metal units [Gd3Cr] sharing vertices. The introduction of the mixed anion template increased the number of metal atoms in the Ln-Cr clusters. Magnetic calculations indicated that there was weak antiferromagnetic Gd···Cr coupling and weak ferromagnetic Gd···Gd coupling in 1, whereas both Gd···Cr and Gd···Gd in 3 exhibited weak antiferromagnetic interactions. Magnetothermal studies showed that compounds 1 and 3 displayed magnetic entropy changes of 25.2 J kg-1 K-1 at 5 K and 7 T and 33.8 J kg-1 K-1 at 2 K and 7 T, respectively.
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Affiliation(s)
- Jia-Jia Yin
- Institutes of Physical Science and Information Technology , Anhui University , Hefei , 230601 , P. R. China
| | - Cheng Chen
- Institutes of Physical Science and Information Technology , Anhui University , Hefei , 230601 , P. R. China
| | - Gui-Lin Zhuang
- College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , 310032 , P. R. China
| | - Jun Zheng
- Institutes of Physical Science and Information Technology , Anhui University , Hefei , 230601 , P. R. China
| | - Xiu-Ying Zheng
- Institutes of Physical Science and Information Technology , Anhui University , Hefei , 230601 , P. R. China.,Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , 361005 , P. R. China
| | - Xiang-Jian Kong
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , 361005 , P. R. China
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9
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Schmitz S, Qiu X, Glöß M, van Leusen J, Izarova NV, Nadeem MA, Griebel J, Chiechi RC, Kögerler P, Monakhov KY. Conductive Self-Assembled Monolayers of Paramagnetic {Co II Co 4 III } and { Co 4 II Co 2 III } Coordination Clusters on Gold Surfaces. Front Chem 2019; 7:681. [PMID: 31750287 PMCID: PMC6848059 DOI: 10.3389/fchem.2019.00681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/01/2019] [Indexed: 11/13/2022] Open
Abstract
Two polynuclear cobalt(II,III) complexes, [Co5(N3)4(N-n-bda)4(bza·SMe)2] (1) and [Co6(N3)4(N-n-bda)2(bza·SMe)5(MeOH)4]Cl (2), where Hbza·SMe = 4-(methylthio)benzoic acid and N-n-H2bda = N-n-butyldiethanolamine, were synthesized and fully characterized by various techniques. Compound 1 exhibits an unusual, approximately C 2-symmetric {CoIICo 4 III } core of two isosceles Co3 triangles with perpendicularly oriented planes, sharing a central, high-spin CoII ion residing in a distorted tetrahedral coordination environment. This central CoII ion is connected to four outer, octahedrally coordinated low-spin CoIII ions via oxo bridges. Compound 2 comprises a semi-circular {Co 4 II Co 2 III } motif of four non-interacting high-spin CoII and two low-spin CoIII centers in octahedral coordination environments. Self-assembled monolayers (SAMs) of 1 and 2 were physisorbed on template-stripped gold surfaces contacted by an eutectic gallium-indium (EGaIn) tip. The acquired current density-voltage (I-V) data revealed that the cobalt-based SAMs are more electrically robust than those of the previously reported dinuclear {CuIILnIII} complexes with Ln = Gd, Tb, Dy, or Y (Schmitz et al., 2018a). In addition, between 170 and 220°C, the neutral, mixed-valence compound 1 undergoes a redox modification, yielding a {Co5}-based coordination cluster (1-A) with five non-interacting, high-spin octahedral CoII centers as indicated by SQUID magnetometry analysis in combination with X-ray photoelectron spectroscopy and infrared spectroscopy. Solvothermal treatment of 1 results in a high-nuclearity coordination cluster, [Co10(N3)2(N-n-bda)6(bza·SMe)6] (3), containing 10 virtually non-interacting high-spin CoII centers.
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Affiliation(s)
- Sebastian Schmitz
- Institut für Anorganische Chemie, RWTH Aachen University, Aachen, Germany
- Leibniz Institute of Surface Engineering (IOM), Leipzig, Germany
| | - Xinkai Qiu
- Stratingh Institute for Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - Maria Glöß
- Institut für Anorganische Chemie, RWTH Aachen University, Aachen, Germany
- Jülich-Aachen Research Alliance (JARA-FIT), Peter Grünberg Institute, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Jan van Leusen
- Institut für Anorganische Chemie, RWTH Aachen University, Aachen, Germany
| | - Natalya V. Izarova
- Jülich-Aachen Research Alliance (JARA-FIT), Peter Grünberg Institute, Forschungszentrum Jülich GmbH, Jülich, Germany
| | | | - Jan Griebel
- Leibniz Institute of Surface Engineering (IOM), Leipzig, Germany
| | - Ryan C. Chiechi
- Stratingh Institute for Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - Paul Kögerler
- Institut für Anorganische Chemie, RWTH Aachen University, Aachen, Germany
- Jülich-Aachen Research Alliance (JARA-FIT), Peter Grünberg Institute, Forschungszentrum Jülich GmbH, Jülich, Germany
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10
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Schmitz S, Izarova NV, Besson C, van Leusen J, Kögerler P, Monakhov KY. Ion-Directed Coordinative Polymerization of Copper(II) Pyridyl-Alcohol Complexes Through Thiane Functionalities. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201800469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sebastian Schmitz
- Institut für Anorganische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Natalya V. Izarova
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6); Forschungszentrum Jülich; 52425 Jülich Germany
| | - Claire Besson
- Department of Chemistry; The George Washington University; 800 22nd St NW 20052 Washington DC USA
| | - Jan van Leusen
- Institut für Anorganische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Paul Kögerler
- Institut für Anorganische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6); Forschungszentrum Jülich; 52425 Jülich Germany
| | - Kirill Yu. Monakhov
- Institut für Anorganische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- Present address: Leibniz Institute of Surface Engineering (IOM); Permoserstr. 15 04318 Leipzig Germany
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11
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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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Schmitz S, Kovalchuk A, Martín-Rodríguez A, van Leusen J, Izarova NV, Bourone SDM, Ai Y, Ruiz E, Chiechi RC, Kögerler P, Monakhov KY. Element-Selective Molecular Charge Transport Characteristics of Binuclear Copper(II)-Lanthanide(III) Complexes. Inorg Chem 2018; 57:9274-9285. [DOI: 10.1021/acs.inorgchem.8b01279] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sebastian Schmitz
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Andrew Kovalchuk
- Stratingh Institute for Chemistry & Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, Netherlands
| | - Alejandro Martín-Rodríguez
- Departament de Química Inorgànica i Orgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Jan van Leusen
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Natalya V. Izarova
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
| | - Svenja D. M. Bourone
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Yong Ai
- Stratingh Institute for Chemistry & Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, Netherlands
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Ryan C. Chiechi
- Stratingh Institute for Chemistry & Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, Netherlands
| | - Paul Kögerler
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
| | - Kirill Yu. Monakhov
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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Miroslaw B, Cristóvão B, Hnatejko Z. Heterometallic Zn II⁻Ln III⁻Zn II Schiff Base Complexes with Linear or Bent Conformation-Synthesis, Crystal Structures, Luminescent and Magnetic Characterization. Molecules 2018; 23:molecules23071761. [PMID: 30021976 PMCID: PMC6099393 DOI: 10.3390/molecules23071761] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/14/2018] [Accepted: 07/15/2018] [Indexed: 02/04/2023] Open
Abstract
A series of racemic, heteronuclear complexes [Zn2Nd(ac)2(HL)2]NO3·3H2O (1), [Zn2Sm(ac)2(HL)2]NO3·3CH3OH·0.3H2O (2), [Zn2Ln(ac)2(HL)2]NO3·5.33H2O (3–5) (where HL is the dideprotonated form of N,N′-bis(5-bromo-3-methoxysalicylidene)-1,3-diamino-2-propanol, ac = acetate ion, and Ln = Eu (3), Tb (4), Dy (5), respectively) with an achiral multisite coordination Schiff base ligand (H3L) were synthesized and characterized. The X-ray crystallography revealed that the chirality in complexes is centered at lanthanide(III) ions due to two vicinally located μ-acetato-bridging ligands. The presented crystals have isoskeletal coordination units but they crystallize in monoclinic (1, 2) or trigonal crystal systems (3–5) with slightly different conformation. In 1 and 2 the ZnII–LnIII–ZnII coordination core is linear, whereas in isostructural crystals 3–5 the chiral coordination cores are bent and lie on a two-fold axis. The complexes 1, 3–5 show a blue emission attributed to the emission of the ligand. For ZnII2SmIII complex (2) the characteristic emission bands of f-f* transitions were observed. The magnetic properties for compounds 1, 4 and 5 are characteristic for the paramagnetism of the corresponding lanthanide(III) ions.
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Affiliation(s)
- Barbara Miroslaw
- Department of Crystallography, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland.
| | - Beata Cristóvão
- Department of General and Coordination Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland.
| | - Zbigniew Hnatejko
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, 61-614 Poznań, Poland.
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15
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Alexandropoulos DI, Cunha-Silva L, Tang J, Stamatatos TC. Heterometallic Cu/Ln cluster chemistry: ferromagnetically-coupled {Cu4Ln2} complexes exhibiting single-molecule magnetism and magnetocaloric properties. Dalton Trans 2018; 47:11934-11941. [DOI: 10.1039/c8dt01780h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of ferromagnetically-coupled {Cu4Ln2} complexes is reported. The compounds exhibit SMM and magnetocaloric properties.
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Affiliation(s)
| | - Luis Cunha-Silva
- REQUIMTE-LAQV & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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