Abstract
Two new ion-pair complexes [1-(4′-fluorobenzyl)pyridinium][Ni(bdt)2] (1) and [1-(4′-bromobenzyl)pyridinium][Ni(bdt)2] (2), in which bdt2- = 1,2-benzenedithiolate ('S2'2-), have been prepared and characterized. X-ray structural analyses showed that 1 and 2 are isostructural, and the anions are centrosymmetric. The 2 non-equiv. anions form different uniform-spaced stacking pattern in 1 and 2. The magnetic measurements of 1 and 2 indicate ferromagnetic behavior in the antiferromagnetic exchange system, which may arise from spin canting. Cyclovoltammetry revealed two quasi-reversible one-electron steps for 1 and 2, which are attributed to Ni(IV/III) and Ni(III/II) redox couples.
Original language | English |
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Pages (from-to) | 299-305 |
Number of pages | 7 |
Journal | Polyhedron |
Volume | 22 |
Issue number | 2 |
DOIs | |
State | Published - 15 Jan 2003 |
Externally published | Yes |
Keywords
- Crystal structures
- Magnetism
- Ni(III) thiolate complexes
- Spin canting