Modulating Magnetic Property of Phthalocyanine Supported MII–DyIII (M = Ni, Zn) Heterodinuclear Complexes
Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on phthalocyanine (H2Pc) and one tripodal Schiff-base ligand 1,1,1-tris[(salicylideneamino)methyl]ethane (H3L). All of them have been stud...
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| Published in | Inorganic chemistry Vol. 58; no. 14; pp. 9387 - 9396 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English Japanese |
| Published |
American Chemical Society
15.07.2019
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| Online Access | Get full text |
| ISSN | 0020-1669 1520-510X 1520-510X |
| DOI | 10.1021/acs.inorgchem.9b01179 |
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| Abstract | Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on phthalocyanine (H2Pc) and one tripodal Schiff-base ligand 1,1,1-tris[(salicylideneamino)methyl]ethane (H3L). All of them have been studied structurally and magnetically. The six-coordinate MII ion and the seven-coordinate DyIII ion are bridged by two phenolic oxygen atoms to form an MII–LnIII heterodinuclear unit. Magnetic measurements indicate that the ferromagnetic NiII–DyIII interaction is operative in compound 1 and all three compounds exhibit the field-induced slow relaxation of magnetizations. In particular, compounds 2 and 3 have the improved magnetic performance. Ab initio calculations indicate that the weak NiII–DyIII interaction decreases the energy barrier, while the replacement of the paramagnetic NiII ion by the diamagnetic ZnII in compound 2 and 3 not only controls the magnetic interaction but also alters the local magnetic axes of DyIII ions to optimize the magnetic relaxation behavior. |
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| AbstractList | Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on phthalocyanine (H2Pc) and one tripodal Schiff-base ligand 1,1,1-tris[(salicylideneamino)methyl]ethane (H3L). All of them have been studied structurally and magnetically. The six-coordinate MII ion and the seven-coordinate DyIII ion are bridged by two phenolic oxygen atoms to form an MII-LnIII heterodinuclear unit. Magnetic measurements indicate that the ferromagnetic NiII-DyIII interaction is operative in compound 1 and all three compounds exhibit the field-induced slow relaxation of magnetizations. In particular, compounds 2 and 3 have the improved magnetic performance. Ab initio calculations indicate that the weak NiII-DyIII interaction decreases the energy barrier, while the replacement of the paramagnetic NiII ion by the diamagnetic ZnII in compound 2 and 3 not only controls the magnetic interaction but also alters the local magnetic axes of DyIII ions to optimize the magnetic relaxation behavior.Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on phthalocyanine (H2Pc) and one tripodal Schiff-base ligand 1,1,1-tris[(salicylideneamino)methyl]ethane (H3L). All of them have been studied structurally and magnetically. The six-coordinate MII ion and the seven-coordinate DyIII ion are bridged by two phenolic oxygen atoms to form an MII-LnIII heterodinuclear unit. Magnetic measurements indicate that the ferromagnetic NiII-DyIII interaction is operative in compound 1 and all three compounds exhibit the field-induced slow relaxation of magnetizations. In particular, compounds 2 and 3 have the improved magnetic performance. Ab initio calculations indicate that the weak NiII-DyIII interaction decreases the energy barrier, while the replacement of the paramagnetic NiII ion by the diamagnetic ZnII in compound 2 and 3 not only controls the magnetic interaction but also alters the local magnetic axes of DyIII ions to optimize the magnetic relaxation behavior. Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on phthalocyanine (H2Pc) and one tripodal Schiff-base ligand 1,1,1-tris[(salicylideneamino)methyl]ethane (H3L). All of them have been studied structurally and magnetically. The six-coordinate MII ion and the seven-coordinate DyIII ion are bridged by two phenolic oxygen atoms to form an MII–LnIII heterodinuclear unit. Magnetic measurements indicate that the ferromagnetic NiII–DyIII interaction is operative in compound 1 and all three compounds exhibit the field-induced slow relaxation of magnetizations. In particular, compounds 2 and 3 have the improved magnetic performance. Ab initio calculations indicate that the weak NiII–DyIII interaction decreases the energy barrier, while the replacement of the paramagnetic NiII ion by the diamagnetic ZnII in compound 2 and 3 not only controls the magnetic interaction but also alters the local magnetic axes of DyIII ions to optimize the magnetic relaxation behavior. |
| Author | Wang, Peng Chen, Zhongyan Zuo, Jing-Lin Huo, Dexuan Zhang, Yi-Quan Ge, Jing-Yuan Qiu, Ya-Ru |
| AuthorAffiliation | Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering College of Materials and Environmental Engineering College of Chemical and Environmental Engineering |
| AuthorAffiliation_xml | – name: College of Materials and Environmental Engineering – name: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering – name: Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology – name: College of Chemical and Environmental Engineering |
| Author_xml | – sequence: 1 givenname: Jing-Yuan orcidid: 0000-0002-3218-6984 surname: Ge fullname: Ge, Jing-Yuan email: gejingyuan@hdu.edu.cn organization: College of Materials and Environmental Engineering – sequence: 2 givenname: Zhongyan surname: Chen fullname: Chen, Zhongyan organization: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering – sequence: 3 givenname: Ya-Ru surname: Qiu fullname: Qiu, Ya-Ru organization: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering – sequence: 4 givenname: Dexuan surname: Huo fullname: Huo, Dexuan organization: College of Materials and Environmental Engineering – sequence: 5 givenname: Yi-Quan orcidid: 0000-0003-1818-0612 surname: Zhang fullname: Zhang, Yi-Quan email: zhangyiquan@njnu.edu.cn organization: Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology – sequence: 6 givenname: Peng surname: Wang fullname: Wang, Peng organization: College of Chemical and Environmental Engineering – sequence: 7 givenname: Jing-Lin orcidid: 0000-0003-1219-8926 surname: Zuo fullname: Zuo, Jing-Lin organization: State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering |
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| Snippet | Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on... Three heterometallic dinuclear compounds, [MIIDyIII(L)(Pc)(ROH)]·ROH (R = CH3, M = Ni (1), Zn (2); R = C2H5, M = Zn (3)), were stepwise synthesized based on... |
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| Title | Modulating Magnetic Property of Phthalocyanine Supported MII–DyIII (M = Ni, Zn) Heterodinuclear Complexes |
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