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Xu X, Hu F, Ma Y, Gao J, Shuai Q. Facile microwave synthesis, structural diversity and herbicidal activity of six novel alkaline-earth metal complexes (AECs) based on skeletal isomerization chlorophenoxyacetic acids. NEW J CHEM 2018. [DOI: 10.1039/c8nj00107c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile microwave synthesis, structural diversity and herbicidal activity of six novel alkaline-earth metal complexes (AECs) based on skeletal isomerization chlorophenoxyacetic acids.
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Affiliation(s)
- Xiuling Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Fan Hu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Yuwei Ma
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling
- People's Republic of China
| | - Qi Shuai
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling
- People's Republic of China
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2
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Pichon C, Elrez B, Béreau V, Duhayon C, Sutter JP. From Heptacoordinated CrIII
Complexes with Cyanide or Isothiocyanate Apical Groups to 1D Heterometallic Assemblages with All-Pentagonal-Bipyramid Coordination Geometries. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700845] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Céline Pichon
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 Route de Narbonne 31077 Toulouse France
- UPS; INPT; Université de Toulouse; 31007 Toulouse France
| | - Bahjat Elrez
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 Route de Narbonne 31077 Toulouse France
- UPS; INPT; Université de Toulouse; 31007 Toulouse France
| | - Virginie Béreau
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 Route de Narbonne 31077 Toulouse France
- UPS; INPT; Université de Toulouse; 31007 Toulouse France
| | - Carine Duhayon
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 Route de Narbonne 31077 Toulouse France
- UPS; INPT; Université de Toulouse; 31007 Toulouse France
| | - Jean-Pascal Sutter
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 Route de Narbonne 31077 Toulouse France
- UPS; INPT; Université de Toulouse; 31007 Toulouse France
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3
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Ni ZH, Sun H. Crystal structure of tris(cyano-(hydrogen tris(3,5-dimethylpyrazolyl)borate))-iron(III) 4-methoxypyridinium monohydrate, C24H32BN10O2Fe. Z KRIST-NEW CRYST ST 2017. [DOI: 10.1515/ncrs-2017-0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractC24H32BN10O2Fe, orthorhombic, Pca21 (no. 29), a = 19.053(4) Å, b = 9.0666(18) Å, c = 16.439(3) Å, V = 2839.8(10) Å3, Z = 4, Rgt(F) = 0.0482, wRref(F2) = 0.1194, T = 123(2) K.
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Affiliation(s)
- Zhong-Hai Ni
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, People’s Republic of China
| | - Hao Sun
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, People’s Republic of China
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4
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Sasnovskaya VD, Kopotkov VA, Talantsev AD, Morgunov RB, Yagubskii EB, Simonov SV, Zorina LV, Mironov VS. Synthesis, Structure, and Magnetic Properties of 1D {[Mn III(CN) 6][Mn II(dapsc)]} n Coordination Polymers: Origin of Unconventional Single-Chain Magnet Behavior. Inorg Chem 2017; 56:8926-8943. [PMID: 28686422 DOI: 10.1021/acs.inorgchem.7b00676] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two one-dimensional cyano-bridged coordination polymers, namely, {[MnII(dapsc)][MnIII(CN)6][K(H2O)2.75(MeOH)0.5]}n·0.5n(H2O) (I) and {[MnII(dapsc)][MnIII(CN)6][K(H2O)2(MeOH)2]}n (II), based on alternating high-spin MnII(dapsc) (dapsc = 2,6-diacetylpyridine bis(semicarbazone)) complexes and low-spin orbitally degenerate hexacyanomanganate(III) complexes were synthesized and characterized structurally and magnetically. Static and dynamic magnetic measurements reveal a single-chain magnet (SCM) behavior of I with an energy barrier of Ueff ≈ 40 K. Magnetic properties of I are analyzed in detail in terms of a microscopic theory. It is shown that compound I refers to a peculiar case of SCM that does not fall into the usual Ising and Heisenberg limits due to unconventional character of the MnIII-CN-MnII spin coupling resulting from a nonmagnetic singlet ground state of orbitally degenerate complexes [MnIII(CN)6]3-. The prospects of [MnIII(CN)6]3- complex as magnetically anisotropic molecular building block for engineering molecular magnets are critically analyzed.
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Affiliation(s)
- Valentina D Sasnovskaya
- Institute of Problems of Chemical Physics, Russian Academy of Sciences , Semenov's av., 1, Chernogolovka, MD, Russian Federation
| | - Vyacheslav A Kopotkov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences , Semenov's av., 1, Chernogolovka, MD, Russian Federation
| | - Artem D Talantsev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences , Semenov's av., 1, Chernogolovka, MD, Russian Federation
| | - Roman B Morgunov
- Institute of Problems of Chemical Physics, Russian Academy of Sciences , Semenov's av., 1, Chernogolovka, MD, Russian Federation
| | - Eduard B Yagubskii
- Institute of Problems of Chemical Physics, Russian Academy of Sciences , Semenov's av., 1, Chernogolovka, MD, Russian Federation
| | - Sergey V Simonov
- Institute of Solid State Physics, Russian Academy of Sciences , Academician Ossipyan str., 2, Chernogolovka, MD, Russian Federation
| | - Leokadiya V Zorina
- Institute of Solid State Physics, Russian Academy of Sciences , Academician Ossipyan str., 2, Chernogolovka, MD, Russian Federation
| | - Vladimir S Mironov
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics", Russian Academy of Sciences , Leninskii av. 59, Moscow, Russian Federation
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5
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Drahoš B, Herchel R, Trávníček Z. Impact of Halogenido Coligands on Magnetic Anisotropy in Seven-Coordinate Co(II) Complexes. Inorg Chem 2017; 56:5076-5088. [PMID: 28406642 DOI: 10.1021/acs.inorgchem.7b00235] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The structural and magnetic features of a series of mononuclear seven-coordinate CoII complexes with the general formula [Co(L)X2], where L is a 15-membered pyridine-based macrocyclic ligand (3,12,18-triaza-6,9-dioxabicyclo[12.3.1]octadeca-1(18),14,16-triene) and X = Cl- (1), Br- (2), or I- (3), were investigated experimentally and theoretically in order to reveal how the corresponding halogenido coligands in the apical positions of a distorted pentagonal-bipyramidal coordination polyhedron may affect the magnetic properties of the prepared compounds. The thorough analyses of the magnetic data revealed a large easy-plane type of the magnetic anisotropy (D > 0) for all three compounds, with the D-values increasing in the order 35 cm-1 for 3 (I-), 38 cm-1 for 1 (Cl-), and 41 cm-1 for 2 (Br-). Various theoretical methods like the Angular Overlap Model, density functional theory, CASSCF/CASPT2, CASSCF/NEVPT2 were utilized in order to understand the observed trend in magnetic anisotropy. The D-values correlated well with the Mayer bond order (decreasing in order Co-I > Co-Cl > Co-Br), which could be a consequence of two competing factors: (a) the ligand field splitting and (b) the covalence of the Co-X bond. All the complexes also behave as field-induced single-molecule magnets with the spin reversal barrier Ueff increasing in order 1 (Cl-) < 2 (Br-) < 3 (I-); however, taking into account the easy-plane type of the magnetic anisotropy, the Raman relaxation process is most likely responsible for slow relaxation of the magnetization. The results of the work revealed that the previously suggested and fully accepted strategy employing heavier halogenido ligands in order to increase the magnetic anisotropy has some limitations in the case of pentagonal-bipyramidal CoII complexes.
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Affiliation(s)
- Bohuslav Drahoš
- Department of Inorganic Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University , 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic
| | - Radovan Herchel
- Department of Inorganic Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University , 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic
| | - Zdeněk Trávníček
- Department of Inorganic Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University , 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic
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6
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Zhang L, Li N, Xu L, Ni Z. Synthesis, crystal structure and magnetic properties of a new cyanide-bridged two-dimensional chromium(I)-cobalt(II) ferromagnet based on pentacyanonitrosylchromate(I). TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0147-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Dolai M, Mondal A, Liu JL, Ali M. Three novel mononuclear Mn(iii)-based magnetic materials with square pyramidal versus octahedral geometries. NEW J CHEM 2017. [DOI: 10.1039/c7nj02919e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single crystal X-ray diffraction studies reveal that complexes 1 and 2 have square pyramidal geometry and 3 has octahedral geometry, which showed a dependence of negative anisotropy (D) values on the electronic, geometry and packing effects.
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Affiliation(s)
- Malay Dolai
- Department of Chemistry Jadavpur University
- Kolkata 700 032
- India
| | - Abhishake Mondal
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
- Centre de Recherche Paul Pascal (CRPP)
| | - Jun-Liang Liu
- Centre de Recherche Paul Pascal (CRPP)
- CNRS
- UPR 8641
- F-33600 Pessac
- France
| | - Mahammad Ali
- Department of Chemistry Jadavpur University
- Kolkata 700 032
- India
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8
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Shao D, Zhou Y, Pi Q, Shen FX, Yang SR, Zhang SL, Wang XY. Two-dimensional frameworks formed by pentagonal bipyramidal cobalt(ii) ions and hexacyanometallates: antiferromagnetic ordering, metamagnetism and slow magnetic relaxation. Dalton Trans 2017; 46:9088-9096. [DOI: 10.1039/c7dt01893b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two-dimensional frameworks constructed by pentagonal bipyramidal CoII and [M(CN)6]3− units have been synthesized and characterized structurally and magnetically.
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Affiliation(s)
- Dong Shao
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Yan Zhou
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Qian Pi
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Fu-Xing Shen
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Si-Run Yang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Shao-Liang Zhang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
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9
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Zhang R, Zhang T, Ni Z, Zhang L, Kou H. Design, syntheses, crystal structures and magnetic properties of a series of cyanide-bridged heterometallic Cr(III)–Mn(III) one-dimensional complexes. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Zhang R, Xu L, Ni ZH, Chen H, Zhang LF. Synthesis, crystal structure and magnetic properties of a new cyanide-bridged two-dimensional CrIII2CoII3 ferromagnet. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Gavey EL, Pilkington M. Coordination complexes of 15-membered pentadentate aza, oxoaza and thiaaza Schiff base macrocycles “Old Complexes Offer New Attractions”. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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12
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Shao D, Zhang SL, Zhao XH, Wang XY. Spin canting, metamagnetism, and single-chain magnetic behaviour in a cyano-bridged homospin iron(II) compound. Chem Commun (Camb) 2015; 51:4360-3. [PMID: 25600433 DOI: 10.1039/c4cc10003d] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spin canting, antiferromagnetic ordering, metamagnetism and single-chain magnetism were verified in a cyano-bridged Fe(II) compound synthesized from the pentagonal bipyramidal Fe(II) starting material in the presence of excessive BF4(-) anions.
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Affiliation(s)
- Dong Shao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.
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Alexandru MG, Visinescu D, Marino N, de Munno G, Lloret F, Julve M. {CoIIIMnIII}ncorrugated chains based on heteroleptic cyanido metalloligands. RSC Adv 2015. [DOI: 10.1039/c5ra16307b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The use of cyanide-bearing complexes affords one-dimensional coordination polymers with the formulas {[MnIII(salen)(μ-NC)2CoIII(4,4-dmbipy)(CN)2]·H2O}n(1) and {[MnIII(salen)(μ-NC)2CoIII(dmphen)(CN)2]}n(2) .
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Affiliation(s)
- Maria-Gabriela Alexandru
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry
- Faculty of Applied Chemistry and Materials Science
- University “Politehnica” of Bucharest
- 011061 Bucharest
- Romania
| | - Diana Visinescu
- Coordination and Supramolecular Chemistry Laboratory
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy
- Bucharest-060021
- Romania
| | - Nadia Marino
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- Italy
| | - Giovanni de Munno
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- Italy
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Facultat de Química de la Universitat de València
- C/ Catedrático José Beltrán
- 46980 Paterna
- Spain
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular
- Facultat de Química de la Universitat de València
- C/ Catedrático José Beltrán
- 46980 Paterna
- Spain
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Acha RT, Pilkington M. Probing the structural changes accompanying a spin crossover transition in a chiral [Fe(ii)(N3O2)(CN)2] macrocycle by X-ray crystallography. CrystEngComm 2015. [DOI: 10.1039/c5ce01052g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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