The first pentagonal-bipyramidal vanadium(III) complexes with a Schiff-base N3O2 pentadentate ligand: synthesis, structure and magnetic properties
A series of three mononuclear pentagonal-bipyramidal V(III) complexes with the equatorial pentadentate N3O2 ligand (2,6-diacethylpyridinebis(benzoylhydrazone), H2DAPBH) in the different charge states (H2DAPBH0, HDAPBH1−, DAPBH2−) and various apical ligands (Cl−, CH3OH, SCN−) were synthesized and cha...
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| Hauptverfasser: | , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
05 Oct 2020
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| In: |
Dalton transactions
Year: 2020, Jahrgang: 49, Heft: 43, Pages: 15287-15298 |
| ISSN: | 1477-9234 |
| DOI: | 10.1039/D0DT03092A |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/D0DT03092A Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2020/dt/d0dt03092a 
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| Verfasserangaben: | Tamara A. Bazhenova, Leokadiya V. Zorina, Sergey V. Simonov, Vladimir S. Mironov, Olga V. Maximova, Lena Spillecke, Changhyun Koo, Rüdiger Klingeler, Yuriy V. Manakin, Alexander N. Vasiliev, Eduard B. Yagubskii |
MARC
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| 245 | 1 | 4 | |a The first pentagonal-bipyramidal vanadium(III) complexes with a Schiff-base N3O2 pentadentate ligand |b synthesis, structure and magnetic properties |c Tamara A. Bazhenova, Leokadiya V. Zorina, Sergey V. Simonov, Vladimir S. Mironov, Olga V. Maximova, Lena Spillecke, Changhyun Koo, Rüdiger Klingeler, Yuriy V. Manakin, Alexander N. Vasiliev, Eduard B. Yagubskii |
| 246 | 3 | 3 | |a The first pentagonal-bipyramidal vanadium(III) complexes with a Schiff-base N three O two pentadentate ligand |
| 264 | 1 | |c 05 Oct 2020 | |
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| 500 | |a Gesehen am 18.07.2022 | ||
| 500 | |a Im Titel sind die Zahlen "2" und "3" tiefgestellt | ||
| 520 | |a A series of three mononuclear pentagonal-bipyramidal V(III) complexes with the equatorial pentadentate N3O2 ligand (2,6-diacethylpyridinebis(benzoylhydrazone), H2DAPBH) in the different charge states (H2DAPBH0, HDAPBH1−, DAPBH2−) and various apical ligands (Cl−, CH3OH, SCN−) were synthesized and characterized structurally and magnetically: [V(H2DAPBH)Cl2]Cl·C2H5OH (1), [V(HDAPBH)(NCS)2]·0.5CH3CN·0.5CH3OH (2) and [V(DAPBH)(CH3OH)2]Cl·CH3OH (3). All three complexes reveal paramagnetic behavior, resulting from isolated S = 1 spins with positive zero-field splitting energy expected for the high-spin ground state of the V3+ (3d2) ion in a PBP coordination. Detailed high-field EPR measurements for compound 3 show that its magnetic properties are best described by using the spin Hamiltonian with the positive ZFS energy (D = +4.1 cm−1) and pronounced dimer-like antiferromagnetic spin coupling (J = −1.1 cm−1). Theoretical analysis based on superexchange calculations reveals that the long-range spin coupling between distant V3+ ions (8.65 Å) is mediated through π-stacking contacts between the planar DAPBH2− ligands of two neighboring [V(DAPBH)(CH3OH)2]+ complexes. | ||
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| 700 | 1 | |a Simonov, Sergey V. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Mironov, Vladimir S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Maximova, Olga V. |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Manakin, Yuriy V. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Vasiliev, Alexander N. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Yagubskii, Eduard B. |e VerfasserIn |4 aut | |
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