| Online-Ressource |
Verfasst von: | Bazhenova, Tamara A. [VerfasserIn]  |
| Zorina, Leokadiya V. [VerfasserIn]  |
| Simonov, Sergey V. [VerfasserIn]  |
| Mironov, Vladimir S. [VerfasserIn]  |
| Maximova, Olga V. [VerfasserIn]  |
| Spillecke, Lena [VerfasserIn]  |
| Koo, Changhyun [VerfasserIn]  |
| Klingeler, Rüdiger [VerfasserIn]  |
| Manakin, Yuriy V. [VerfasserIn]  |
| Vasiliev, Alexander N. [VerfasserIn]  |
| Yagubskii, Eduard B. [VerfasserIn]  |
Titel: | The first pentagonal-bipyramidal vanadium(III) complexes with a Schiff-base N3O2 pentadentate ligand |
Titelzusatz: | synthesis, structure and magnetic properties |
Verf.angabe: | 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 |
E-Jahr: | 2020 |
Jahr: | 05 Oct 2020 |
Umfang: | 12 S. |
Fussnoten: | Gesehen am 18.07.2022 ; Im Titel sind die Zahlen "2" und "3" tiefgestellt |
Titel Quelle: | Enthalten in: Dalton transactions |
Ort Quelle: | London : Soc., 1972 |
Jahr Quelle: | 2020 |
Band/Heft Quelle: | 49(2020), 43, Seite 15287-15298 |
ISSN Quelle: | 1477-9234 |
Abstract: | 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. |
DOI: | doi:10.1039/D0DT03092A |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1039/D0DT03092A |
| Volltext: https://pubs.rsc.org/en/content/articlelanding/2020/dt/d0dt03092a |
| DOI: https://doi.org/10.1039/D0DT03092A |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 181072712X |
Verknüpfungen: | → Zeitschrift |
¬The¬ first pentagonal-bipyramidal vanadium(III) complexes with a Schiff-base N3O2 pentadentate ligand / Bazhenova, Tamara A. [VerfasserIn]; 05 Oct 2020 (Online-Ressource)