51
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Boonmak J, Nakano M, Youngme S. Structural diversity and magnetic properties in 1D and 2D azido-bridged cobalt(ii) complexes with 1,2-bis(2-pyridyl)ethylene. Dalton Trans 2011; 40:1254-60. [DOI: 10.1039/c0dt00853b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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52
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Yang EC, Liu ZY, Wu XY, Chang H, Wang EC, Zhao XJ. CoII, MnII and CuII-directed coordination polymers with mixed tetrazolate–dicarboxylate heterobridges exhibiting spin-canted, spin-frustrated antiferromagnetism and a slight spin-flop transition. Dalton Trans 2011; 40:10082-9. [DOI: 10.1039/c1dt10958h] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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53
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54
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Saha S, Biswas D, Chakrabarty PP, Jana AD, Boudalis AK, Seth SK, Kar T. Cluster based copper(II)-azide polymer: Synthesis, structure and magnetic study. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.09.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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55
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Luo F, Luo MB, Long GJ. The use of trans-4-cotininecarboxylate to construct a polymeric copper(II) azido complex: Hydro(solvo)thermal synthesis, structure and magnetic properties. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.05.002] [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]
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56
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Mukherjee S, Mukherjee PS. A Series of CuII-Azide Polymers of Cu6 Building Units and the Role of Chelating Diamine in Controlling their Dimensionality: Synthesis, Structures, and Magnetic Behavior. Inorg Chem 2010; 49:10658-67. [DOI: 10.1021/ic1016966] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sandip Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
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57
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Sasmal S, Hazra S, Kundu P, Majumder S, Aliaga-Alcalde N, Ruiz E, Mohanta S. Magneto-Structural Correlation Studies and Theoretical Calculations of a Unique Family of Single End-to-End Azide-Bridged NiII4 Cyclic Clusters. Inorg Chem 2010; 49:9517-26. [DOI: 10.1021/ic101209m] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sujit Sasmal
- Department of Chemistry, University of Calcutta, 92 A. P. C Road, Kolkata 700 009, India
| | - Susanta Hazra
- Department of Chemistry, University of Calcutta, 92 A. P. C Road, Kolkata 700 009, India
| | - Parimal Kundu
- Department of Chemistry, Maharaja Manindra Chandra College, 20 Ramkanto Bose Street, Kolkata 700 003, India
| | - Samit Majumder
- Department of Chemistry, University of Calcutta, 92 A. P. C Road, Kolkata 700 009, India
| | - Núria Aliaga-Alcalde
- ICREA-Departament de Química Inorgànica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
| | - Sasankasekhar Mohanta
- Department of Chemistry, University of Calcutta, 92 A. P. C Road, Kolkata 700 009, India
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58
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Zhang Y, Wang XT, Zhang XM, Liu TF, Xu WG, Gao S. Synthesis, Structures, and Magnetism of Three 1D MnIII Chains with Oxazoline-Based Ligands. Inorg Chem 2010; 49:5868-75. [DOI: 10.1021/ic100006a] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Zhang
- Department of Chemistry, The Institute of Chemical Physics, and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Xiu-Teng Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Xiao-Man Zhang
- Department of Chemistry, The Institute of Chemical Physics, and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Tian-Fu Liu
- Department of Chemistry, The Institute of Chemical Physics, and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Wen-Guo Xu
- Department of Chemistry, The Institute of Chemical Physics, and State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
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59
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Huang FP, Tian JL, Li DD, Chen GJ, Gu W, Yan SP, Liu X, Liao DZ, Cheng P. Pillared cobalt–organic framework with an unprecedented (3,4,6)-connected architecture showing the coexistence of spin canting and long-range magnetic ordering. CrystEngComm 2010. [DOI: 10.1039/b911950g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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60
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Affiliation(s)
- Julio Pérez
- Departamento de Química Orgánica e Inorgánica‐IUQOEM, Facultad de Química, Universidad de Oviedo‐CSIC, 33006 Oviedo, Spain, Fax: +34‐985103446
| | - Lucía Riera
- Departamento de Química Orgánica e Inorgánica‐IUQOEM, Facultad de Química, Universidad de Oviedo‐CSIC, 33006 Oviedo, Spain, Fax: +34‐985103446
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61
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Mukherjee S, Gole B, Chakrabarty R, Mukherjee PS. CuII-Azide Polymers of Cu3 and Cu6 Building Units: Synthesis, Structures, and Magnetic Exchange Mechanism. Inorg Chem 2009; 48:11325-34. [DOI: 10.1021/ic901844j] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sandip Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Bappaditya Gole
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Rajesh Chakrabarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
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62
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Zhang L, Ling Y, Hu AX, Yao TT, Li J. Four novel Co(II) and Mn(II) coordination polymers with triazolyl derivate: Syntheses, crystal structures and magnetic properties. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.07.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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63
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Li RY, Wang BW, Wang XY, Wang XT, Wang ZM, Gao S. Two EE-azido-bridged nickel(II) layered compounds: vigorous twisted torsion angle Ni-N3-Ni results in ferromagnetic behavior. Inorg Chem 2009; 48:7174-80. [PMID: 19569711 DOI: 10.1021/ic9003092] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two coordination polymers, Ni(endi)(N(3))(2) (endi = 1,2-bis(tetrazol-1-yl)ethane) (1) and Ni(4-acpy)(2)(N(3))(2) (4-acpy = 4-acetylpyridine) (2), are obtained by employing a couple of cobalt complex as references. Both compounds have similar 2D (4,4) EE azide-nickel layer structures, but different interlayer separations. Their EE azide bridges are vigorously twisted, with the torsion angle tau value 88.3 degrees and 107.6 degrees for 1 and 89.2 degrees for 2. Different from most EE azide compounds, ferromagnetism is distinctly present, ordering below T(c) = 25 K for 1 and T(c) = 23 K for 2. Fitting of magnetic susceptibility data using the spin Hamiltonian H = -2J SigmaS(1)S(2) gives the ferromagnetic intralayer coupling J = 14.70(6) cm(-1) for 1 and 14.32(0) cm(-1) for 2, respectively. The magnetostructural correlations of 1 have been calculated using the density function theory based method. The computational results are consistent with the trend of the experimental data. One possible mechanism was proposed to explain the emergence of ferromagnetism based on the theoretical studies, and the ferromagnet construction approach was also proposed accordingly.
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Affiliation(s)
- Ru-Yin Li
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
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64
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Mautner FA, Öhrström L, Sodin B, Vicente R. New Topology in Azide-Bridged Cobalt(II) Complexes: the Weak Ferromagnet [Co2(N3)4(Hexamethylenetetramine)(H2O)]n. Inorg Chem 2009; 48:6280-6. [DOI: 10.1021/ic9005373] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Franz A. Mautner
- Institut für Physikalische und Theoretische Chemie, Technische Universität Graz, Rechbauerstrasse 12, A-8010, Graz, Austria
| | - Lars Öhrström
- Department of Chemical and Biological Engineering, Chalmers Tekniska Högskola, SE-412 96 Göteborg, Sweden
| | - Beate Sodin
- Institut für Physikalische und Theoretische Chemie, Technische Universität Graz, Rechbauerstrasse 12, A-8010, Graz, Austria
| | - Ramon Vicente
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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65
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Structural and magnetic properties of 1D coordination polymers constructed by isophthalate and 2,4′-bipyridine. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.02.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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66
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Paital AR, Mandal D, Huang X, Li J, Aromí G, Ray D. Structure and dimensionality of coordination complexes correlated to piperazine conformation: from discrete [CuII2] and [CuII4] complexes to a μ1,3-N3− bridged [CuII2]n chain. Dalton Trans 2009:1352-62. [DOI: 10.1039/b814681k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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67
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Sengupta O, Mukherjee PS. Three-component assembly of a metal–inorganic 3D Co(ii) polymer containing bridging hydrazine. Dalton Trans 2009:7599-601. [DOI: 10.1039/b907204g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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68
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Liu BL, Xiao HP, Nfor EN, Song Y, You XZ. A new two-dimensional manganese(II) coordination polymer with alternating double end-on and single end-to-end azido bridges: Crystal structure and magnetic properties. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2008.10.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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69
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Li RY, Wang ZM, Gao S. M2(N3)4(hmt)(H2O) (M = Co2+ and Ni2+, hmt = hexamethylenetetramine): mixed azide-hmt bridged 3D metal frameworks with long-range magnetic ordering. CrystEngComm 2009. [DOI: 10.1039/b906694m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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70
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Zeng YF, Hu X, Liu FC, Bu XH. Azido-mediated systems showing different magnetic behaviors. Chem Soc Rev 2009; 38:469-80. [PMID: 19169461 DOI: 10.1039/b718581m] [Citation(s) in RCA: 559] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yong-Fei Zeng
- Department of Chemistry, Nankai University, Tianjin 300071, China
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71
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Khripun AV, Bokach NA, Selivanov SI, Haukka M, Revenco MD, Kukushkin VY. The first example of linkage isomerism for pyrazole ligands in platinum complexes. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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72
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Yang YT, Luo F, Che YX, Zheng JM. A rare Cu(I)/Cu(II)-azide complex showing honeycomb-type net structure: Synthesis, structure, and magnetic studies. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.12.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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73
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Zeng YF, Hu X, Zhao JP, Hu BW, Sañudo E, Liu FC, Bu XH. Partial Substitution of Hydroxyl by Azide: An Unprecedented 2D Azido-Copper-Hydroxyl Compound with a [Cu24] Macrocycle in the Presence of [Cu(H2O)6]2+. Chemistry 2008; 14:7127-30. [DOI: 10.1002/chem.200800068] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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74
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Liao CY, Nayak M, Wei HH, Mohanta S. Synthesis, crystal engineering, and magnetic properties of an anionic 4-terpyridone based copper(II) azide supramolecule containing dinuclear–mononuclear cocrystal. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.05.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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75
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Goher MA, Bitschnau B, Sodin B, Gspan C, Mautner FA. Synthesis and structural characterization of three new 1D and 2D zinc(II) azide polymers with some pyridine and pyrazine derivative ligands. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.10.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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76
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Liu T, Yang YF, Wang ZM, Gao S. Two Diammonium Copper Azides with Similar Layerlike Magnetic Substructures Made of Chains of Serially Connected Cu6 Rings Show Cation-Modulated Magnetism. Chem Asian J 2008; 3:950-7. [PMID: 18431727 DOI: 10.1002/asia.200800012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tao Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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77
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Mondal KC, Mukherjee PS. Three New Cu−Azido Polymers and Their Systematic Interconversion: Role of the Amount of the Blocking Amine on the Structural Diversity and Magnetic Behavior. Inorg Chem 2008; 47:4215-25. [DOI: 10.1021/ic702232d] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kartik Chandra Mondal
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India
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78
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Zhao Y, Cui S, Li B, Zhang J, Liu Q. Structural and magnetic property of one-dimensional polymeric Ni(II) complex. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.07.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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79
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80
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Yue YF, Gao EQ, Fang CJ, Zheng T, Liang J, Yan CH. The crystal structures of four azido-bridged Zn(ii) complexes based on open-chain diazine Schiff-base ligands. CrystEngComm 2008. [DOI: 10.1039/b711831g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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81
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Gu ZG, Xu YF, Yin XJ, Zhou XH, Zuo JL, You XZ. Cluster-based copper(ii) coordination polymers with azido bridges and chiral magnets. Dalton Trans 2008:5593-602. [DOI: 10.1039/b806619a] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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82
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Banerjee A, Singh R, Chopra D, Colacio E, Rajak KK. Mixed bridged dinuclear Ni(II) complexes: synthesis, structure, magnetic properties and DFT study. Dalton Trans 2008:6539-45. [DOI: 10.1039/b809197h] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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83
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Yu XL, You WS, Guo X, Zhang LC, Xu Y, Sun ZG, Clérac R. Magnetic properties and structure of a new one-dimensional azido-bridged nickel(II) coordination polymer. INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2007.08.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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84
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Yoo HS, Kim JI, Yang N, Koh EK, Park JG, Hong CS. Uncommon Ferromagnetic Interactions in a Homometallic Co(II) Chain Bridged by a Single End-to-End Azide. Inorg Chem 2007; 46:9054-6. [PMID: 17900108 DOI: 10.1021/ic7014995] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new one-dimensional heterochiral coordination polymer [Co(bmdt)(N3)2].MeCN (1.MeCN) with well-isolated chains was prepared via a self-assembly process. Magnetic data show that intrachain ferromagnetic couplings via the single end-to-end azide group are observed, which is an extraordinary case among the azide-bridged Co(II) systems.
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Affiliation(s)
- Houng Sik Yoo
- Department of Chemistry, Korea University, Seoul, Korea
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85
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Stamatatos TC, Papaefstathiou GS, MacGillivray LR, Escuer A, Vicente R, Ruiz E, Perlepes SP. Ferromagnetic Coupling in a 1D Coordination Polymer Containing a Symmetric [Cu(μ1,1-N3)2Cu(μ1,1-N3)2Cu]2+ Core and Based on an Organic Ligand Obtained from the Solid State. Inorg Chem 2007; 46:8843-50. [PMID: 17867673 DOI: 10.1021/ic070018b] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Addition of rctt-tetrakis(2-pyridyl)cyclobutane (2,2'-tpcb) in a Cu(II)/N(3)- solution afforded the 1D coordination polymer [Cu(3)(N(3))(6)(2,2'-tpcb)(DMF)(2)](n) (1). The ligand 2,2'-tpcb serves as a tetradentate bis-chelating ligand by linking linear [(DMF)Cu(mu(1,1)-N(3))(2)Cu(N(3))(2)(mu(1,1)-N(3))(2)Cu(DMF)] trinuclear units to produce a zigzag chain. Within each centrosymmetric trinuclear unit there exist two irregularly asymmetric end-on double azido-bridged [Cu(mu(1,1)-N(3))(2)Cu](2+) cores, while one of the largest Cu-Nazide-Cu angles is observed. Magnetic susceptibility data, measured from 2 to 300 K, show bulk moderate ferromagnetic coupling within the magnetically isolated trinuclear units. These data were fitted to the appropriate equation derived from the Hamiltonian H = -J(1)(S(A1)S(B) + S(A2)S(B)) - J(2)S(A1)S(A2), giving the parameters J1 = +70(3) cm(-1), J2 = -3(2) cm(-1), g = 2.12(1), with an intertrimer interaction parameter theta = -0.74(2) K. The coupling constants were correlated with the structural parameters. Density functional calculations reproduce very well the experimental J values and show that ferromagnetism for this complex is mainly due to the topology of the magnetic orbitals and the different coordination spheres of two neighboring Cu(II) atoms, resulting in a small overlap of the orbitals possessing the unpaired electrons.
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86
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Abu-Youssef MAM, Mautner FA, Vicente R. 1D and 2D End-to-End Azide-Bridged Cobalt(II) Complexes: Syntheses, Crystal Structures, and Magnetic Properties. Inorg Chem 2007; 46:4654-9. [PMID: 17461574 DOI: 10.1021/ic0622297] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new polynuclear azido-bridged Co(II) compounds with formulas catena-[Co(mu1,3-N3)(N3)(py)2(H2O)]n (1) and [Co(mu1,3-N3)2(4-acpy)2]n (2) (py=pyridine, 4-acpy=4-acetylpyridine) have been structurally and magnetically characterized. Compound 1 crystallizes in the orthorhombic system Fddd space group and consists of a single end-to-end azido-bridged chain with the Co(II) atoms in a CoN5O slightly distorted octahedron. Compound 2 crystallizes in the monoclinic system P21/a space group and shows 2D sheets built up through end-to-end azido bridges with the Co(II) atoms in a CoN6 environment. The magnetic properties of 1 and 2 are reported. In the high-temperature region, the plots of chiM or chiMT vs T for 1 and 2 compounds can be fitted by using the Curie-Weiss law, and the best-fit values are -69.1 and -22.6 K, respectively. For 2 magnetic ordering and spontaneous magnetization is achieved below Tc=25 K.
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Affiliation(s)
- Morsy A M Abu-Youssef
- Chemistry Department, Faculty of Science, Alexandria University, P. O. Box 426, Ibrahimia, 21321-Alexandria, Egypt
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87
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Yoon JH, Lim JH, Choi SW, Kim HC, Hong CS. Cyanide-Bridged WV−CoII Double-Zigzag Chain Based on an Octacoordinated W Precursor: Metamagnetism and Spin Canting. Inorg Chem 2007; 46:1529-31. [PMID: 17260983 DOI: 10.1021/ic062143d] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cyanide-bridged W-Co bimetallic complex (1) with a double-zigzag chain structure was characterized in terms of structure and magnetism. Compound 1 exhibits metamagnetism and spin canting induced by the presence of anisotropic CoII ions and noncovalent interactions.
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Affiliation(s)
- Jung Hee Yoon
- Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
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88
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Ko HH, Lim JH, Yoo HS, Kang JS, Kim HC, Koh EK, Hong CS. Two WV–MnIIIbimetallic assemblies built by octacyanotungstate(v) and MnIIISchiff bases: molecular structures and a spin-flop transition. Dalton Trans 2007:2070-6. [PMID: 17502941 DOI: 10.1039/b701704a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two W(V)-Mn(III) bimetallic compounds, [Mn(Cl-salmen)(H(2)O)2]{[Mn(5-Clsalmen)(H(2)O)]2[W(CN)8].2H(2)O (1.2H(2)O) [5-Clsalmen = N,N'-(1-methylethylene)bis(5-chlorosalicylideneiminato) dianion], which contains trinuclear Mn(2)W and isolated Mn(III) moieties, and [Mn(3-MeOsalcy)(H(2)O)2]3[W(CN)(8)].2H(2)O (2.2H(2)O) [3-MeOsalcy = N,N'-(trans-1,2-cyclohexanediylethylene)bis(3-methoxysalicylideneiminato) dianion] molecules were prepared in redox processes and characterized using X-ray analysis and magnetic measurements. Compound 1 is composed of the {[Mn(5-Clsalmen)(H(2)O)]2[W(CN)8]}- trimer, in which two CN groups among eight in [W(CN)8](3-) bridge W(5+) and two Mn(3+) ions and the remaining CN ligands are hydrogen-bonded to water molecules or unbound, and the [Mn(Cl-salmen)(H(2)O)2]+ cation. Subsequently, two water molecules of the isolated cation are subject to hydrogen bonds. For 2, there are no covalent bonds among the subunits and six serial stacks of [Mn(3-MeOsalcy)(H(2)O)2]+ units are all hydrogen-bonded. The many hydrogen bonds found in both complexes eventually lead to three-dimensional networks. The magnetic studies for 1 reveal that antiferromagnetic interactions (J = -5.4 cm(-1)) between W(V) and Mn(III) centers within the trimer are transmitted via the bridging CN groups. Intermolecular antiferromagnetic couplings (zJ' = -0.2 cm(-1)) are also observed. The static and dynamic magnetic data of 1 demonstrate the existence of a field-induced spin-flop transition occurring among the clusters and monomeric molecules.
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Affiliation(s)
- Hyun Hee Ko
- Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul, 136-701, Korea
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89
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Gu ZG, Zuo JL, You XZ. A three-dimensional ferromagnet based on linked copper–azido clusters. Dalton Trans 2007:4067-72. [PMID: 17828368 DOI: 10.1039/b708789f] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel three-dimensional coordination polymers [Cu(6)(N(3))(12)(N-Eten)(2)](n) (1) (N-Eten=N-ethylethylenediamine) and {[Cu(9)(N(3))(18)(1,2-pn)(4)].H(2)O}(n) (2) (1,2-pn=1,2-diaminopropane) have been synthesized by the self-assembly reactions of Cu(NO(3))(2).3H(2)O, NaN(3) and small diamine ligands. Their molecular structures were determined by single-crystal X-ray diffraction. Complex 1 is composed of a neutral 3D coordination framework based on unprecedented hexanuclear copper(ii) clusters which features three types of bridging modes for azide (mu-1,1, mu-1,3 and mu-1,1,3). Complex 2 is a novel 3D coordination polymer featuring octanuclear copper-azido clusters and [Cu(diamine)(2)](2+) units which are linked by azido bridges. Magnetic studies for complex show ferromagnetic ordering at 3.5 K, where the azido bridges mediate ferromagnetic coupling between adjacent Cu(II) ions. The magnetic data for 1 were fitted to a uniform hexanuclear copper model which yielded g=2.21, J=6.26 cm(-1), zJ'=0.39 cm(-1). Complex 2 shows ferromagnetic coupling in the octanuclear unit and antiferromagnetic interaction between neighboring units.
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Affiliation(s)
- Zhi-Guo Gu
- Coordination Chemistry Institute and the State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, PR China
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90
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Song X, Xu Y, Li L, Jiang Z, Liao D. One-dimensional manganese(II) complex with only end-to-end azide ligands: Crystal structure and magnetic characterization. INORG CHEM COMMUN 2006. [DOI: 10.1016/j.inoche.2006.07.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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91
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Escuer A, Aromí G. Azide as a Bridging Ligand and Magnetic Coupler in Transition Metal Clusters. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600552] [Citation(s) in RCA: 320] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Albert Escuer
- Departament de Química Inorgànica and Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain, Fax: +34‐93‐490‐7725
| | - Guillem Aromí
- Departament de Química Inorgànica and Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain, Fax: +34‐93‐490‐7725
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92
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Ko HH, Lim JH, Kim HC, Hong CS. Coexistence of Spin Canting and Metamagnetism in a One-Dimensional Mn(III) Complex Bridged by a Single End-to-End Azide. Inorg Chem 2006; 45:8847-9. [PMID: 17054339 DOI: 10.1021/ic061415+] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two manganese(III) azide complexes capped with tetradentate Schiff bases were characterized structurally and magnetically. The replacement of halogens on the Schiff bases leads to a drastic structural alteration from a dimer (1) bridged by phenoxide to a one-dimensional chain (2) linked by azide in a single end-to-end mode. Notably, magnetic studies of 2 show the concomitant existence of spin canting and metamagnetism.
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Affiliation(s)
- Hyun Hee Ko
- Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
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93
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Renard SL, Sylvestre I, Barrett SA, Kilner CA, Halcrow MA. Homoleptic Zinc(II) Complexes with First and Second Coordination Shells of 5-tert-Butylpyrazole. Inorg Chem 2006; 45:8711-8. [PMID: 17029382 DOI: 10.1021/ic052144q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of hydrated Zn[NO3]2 or Zn[BF4]2 with four or more equivalents of 3{5}-tert-butylpyrazole (L(tBu)) yields [Zn(L(tBu))4]X2 (X- = NO3- or BF4-). The nitrate complex contains C2-symmetric four-coordinate zinc(II) centers with a slightly flattened tetrahedral geometry, and each nitrate anion hydrogen bonds to two pyrazole N-H groups. Similar reactions with Zn[ClO4]2 or ZnCl2 in the presence of 2 equiv of AgPF6 or AgSbF6 yield instead [{Zn(L(tBu))4}(L(tBu))4][ClO4]2 and [{Zn(L(tBu))4}(L(tBu))2]Y2 (Y- = PF6- or SbF6-). Crystals of [{Zn(L(tBu))4}(L(tBu))4][ClO4]2 are composed of discrete [{Zn(L(tBu))4}(L(tBu))4]2+ supramolecules that are formed from N-H...N hydrogen bonding between zinc-bound and uncoordinated pyrazole rings. The [{Zn(L(tBu))4}(L(tBu))4]2+ moieties are linked into planar 4(4) nets by hydrogen bonding to bridging ClO4- anions. The ClO4- ions are almost perfectly encapsulated in near-spherical cavities of approximate dimensions 5.0 x 5.0 x 4.5 A that are formed by two interlocked supramolecular dications. Similarly, [{Zn(L(tBu))4}(L(tBu))2][PF6]2 crystallizes as discrete supramolecules in the crystal with the PF6- anions occupying a shallow bowl-shaped cavity on the surface of the complex that is formed by two zinc-bound and one uncoordinated pyrazole ligands. (1)H NMR and IR studies of [{Zn(L(tBu))4}(L(tBu))4][ClO4]2 in CD2Cl2 imply that the second-sphere L(tBu) ligands dissociate from the [Zn(L(tBu))4]2+ center in this solvent and that free and metal-bound L(tBu) are in rapid chemical exchange.
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Affiliation(s)
- Sylvie L Renard
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
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94
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He Z, Wang ZM, Gao S, Yan CH. Coordination Polymers with End-On Azido and Pyridine Carboxylate N-Oxide Bridges Displaying Long-Range Magnetic Ordering with Low Dimensional Character. Inorg Chem 2006; 45:6694-705. [PMID: 16903725 DOI: 10.1021/ic060225w] [Citation(s) in RCA: 149] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A series of 2D and one 3D transition-metal-azido coordination polymers with pyridine carboxylate N-oxide, isonicotinate N-oxide (INO), and nicotinate N-oxide (NNO) as the coligands were synthesized by a hydrothermal method and structurally and magnetically characterized. These complexes have the formulas [M(L)(N3)(H2O)]n (L = INO and M = Mn, 1.Mn; Co, 2.Co; Ni, 3.Ni and L = NNO and M = Mn, 4.Mn; Co, 5.Co; Ni, 6.Ni) and [Cu(L)(N3)(H2O)(0.5)]n (L = INO, 7.Cu; NNO, 8.Cu). All complexes consist of end-on azido and syn-syn carboxylato mixed-bridged M-N(3)/COO chains that are further linked by the pyridine N-oxide group of the INO or NNO to give rise to 2D layered structures for 1.Mn, 2.Co, 3.Ni, 4.Mn, 5.Co, 6.Ni, and 8.Cu and a 3D framework for 7.Cu. The high-temperature magnetic susceptibilities are dominated by low-dimensional behavior while long-range ordering sets in at low temperatures. The Mn complexes are antiferromagnets, and the others are metamagnets. In addition, 5.Co exhibits slow magnetic relaxation behavior at low temperatures. The metamagnetism in each case is due to strong intrachain ferromagnetic interactions and weak interchain antiferromagnetic ones.
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Affiliation(s)
- Zheng He
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications and PKU-HKU Joint Lab on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China
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95
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Dong W, Ouyang Y, Liao DZ, Yan SP, Cheng P, Jiang ZH. Synthesis, structure and magnetic property of a 2D grid-like copper(II) complex with end-on azido and pyrazine bridges. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2006.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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96
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Sarkar S, Mondal A, Banerjee A, Chopra D, Ribas J, Rajak KK. Binuclear μ1,1-N3 and O–H⋯O bridged nickel(II) complex with a N3O chelating agent: Synthesis, structure and magnetic properties. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.01.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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97
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Choi DH, Yoon JH, Lim JH, Kim HC, Hong CS. Methylpyrazole-Capped Two-Dimensional Supramolecular M(II) (M = Mn, Ni, Co) Assemblies Constructed by Covalent and Noncovalent Interactions: Uncommon Coordination Modes of Methylpyrazoles and Magnetic Properties. Inorg Chem 2006; 45:5947-52. [PMID: 16841999 DOI: 10.1021/ic060429c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two mononuclear complexes [Mn(5-methylpyrazole)4(N3)2] (1) and [Ni(5-methylpyrazole)4(N3)2] (2), as well as a novel one-dimensional coordination polymer [Co(3-methylpyrazole)2(5-methylpyrazole)2(tp)]n (3) (tp = terephthalate), were characterized. The isostructural complexes, 1 and 2, display two-dimensional supramolecular networks formed by hydrogen bonds between the N-H groups of 5-methylpyrazoles and the end N atoms of the azide ligands and additional face-to-face pi-pi interactions of the 5-methylpyrazoles. For 3, tp-bridged one-dimensional chains assisted by intrachain hydrogen bonds among the N-H groups of methylpyrazoles and carboxylate oxygens are connected with the help of interchain C-H...O hydrogen bonds, leading to a two-dimensional structure. The intra- and interchain hydrogen bonds account for the coexistence of two unique coordination forms (5-methylpyrazole and 3-methylpyrazole) of methylpyrazoles in the same coordination sphere. Weak antiferromagnetic interactions coupled with the spin-orbit coupling effect are operative in 3 through the tp ligands.
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Affiliation(s)
- Da Hye Choi
- Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
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98
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Zbiri M, Saha S, Adhikary C, Chaudhuri S, Daul C, Koner S. Asymmetric μ2-1,1-azido bridged copper(II) complex: Synthesis, X-ray structure, magnetic study and DFT calculations. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.09.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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99
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Demeshko S, Leibeling G, Dechert S, Meyer F. Targeted construction of azido-bridged Ni4complexes with decisive effect of µ-1,3-azide torsion on the spin ground state. Dalton Trans 2006:3458-65. [PMID: 16832496 DOI: 10.1039/b517254c] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly preorganized pyrazolate-based dinickel(II) systems are shown to constitute suitable building blocks for the targeted assembly of azido-bridged Ni4 complexes with rectangular arrangement of the metal ions. A set of such complexes has been prepared and structurally characterized. mu-1,1-Azide binding within the bimetallic sub-units is controlled by the chosen topology of the pyrazolate ligand scaffold and gives rise to the anticipated ferromagnetic intradimer coupling. Overall magnetic properties of the Ni4 array, however, are mainly determined by the Ni-NNN-Ni torsion of the interdimer mu-1,3-azido linkages. According to the crystallographic results, these torsion angles vary over a wide range, and partial disorder of the mu-1,3-azide bridge in one of the compounds indicates high structural flexibility even in the solid state. Two of the compounds represent rare examples of molecular complexes with a Ni-NNN-Ni torsion angle of almost exactly 90 degrees . The resulting magnetic ground state (neglecting zero-field splitting) is either S = 0 or S = 4 depending on the Ni-NNN-Ni torsion, and in one case a drastic change is observed upon extrusion of lattice solvent.
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Affiliation(s)
- Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
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100
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Saha S, Koner S, Tuchagues JP, Boudalis AK, Okamoto KI, Banerjee S, Mal D. Cation-Dependent Nuclearity of the Copper−Azido Moiety: Synthesis, Structure, and Magnetic Study. Inorg Chem 2005; 44:6379-85. [PMID: 16124817 DOI: 10.1021/ic050117u] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mono-, di-, and trinuclear copper-azido moieties have been synthesized by varying the size of the countercations. [Bu4N]+ yielded a [Cu2(N3)6]2- copper-azido moiety in [Bu4N]2[Cu2(mu(1,1)-N3)2(N3)4], 1, and [Pr4N]+ yielded a [Cu3(N3)8]2- moiety in {[Pr4N]2[Cu3(mu(1,1)-N3)4(N3)4]}n, 2, in which symmetry-related [Cu3(N3)8]2- moieties are doubly mu(1,1)-azido bridged to form unprecedented infinite zigzag chains parallel to the crystallographic a-axis. In the case of [Et4N]+, the mononuclear species [Et4N]2[Cu(N3)4], 3, has been formed. All complexes have been characterized structurally by single-crystal X-ray analysis: 1, C32H72N20Cu2, triclinic, space group P, a = 10.671(9) A, b = 12.239(9) A, c = 10.591(5) A, alpha = 110.01(4) degrees , beta = 93.91(5) degrees , gamma = 113.28(5) degrees , V = 1160.0(1) A3; 2, C24H56N26Cu3, monoclinic, space group P2(1)/n, a = 8.811(2) A, b = 37.266(3) A, c = 13.796(1) A, beta = 107.05(1) degrees , V = 4330.8(10) A(3); 3, C16H40N14Cu, tetragonal, space group I4/m, a = b = 10.487(1) A, c = 12.084(2) A, V = 1328.9(3) A3. The variable-temperature magnetic susceptibility measurements showed that although the magnetic interaction in [Bu4N]2[Cu2(mu(1,1)-N3)2(N3)4], 1, is antiferromagnetic (J = -36 cm(-1)), it is ferromagnetic in {[Pr4N]2[Cu3(mu(1,1)-N3)4(N3)4]}n, 2 (J = 7 cm(-1)). As expected, the [Et4N]2[Cu(N3)4] complex, 3, is paramagnetic.
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Affiliation(s)
- Sandip Saha
- Department of Chemistry, Jadavpur University, Jadavpur, Calcutta 700 032, India
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