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- W2076252363 endingPage "14338" @default.
- W2076252363 startingPage "14330" @default.
- W2076252363 abstract "Magnetic switchable maleonitriledithiolate (mnt) complexes were studied by density functional theory. The calculations were performed for anion dimers of [RBzPyR'][Ni(mnt)(2)] (RBzPyR' = derivatives of benzylpyridinium) to elucidate magnetostructural correlations and the nature of the weak intermolecular chemical bonding. The calculated results showed that the spin delocalization, favored by the eclipsed stacking and the shorter interlayer distance, was responsible for the diamagnetic character of [1-benzyl-4-aminopyridinium][Ni(mnt)(2)] at low temperature. The weak antiferromagnetic and ferromagnetic interactions were also reproduced for [1-benzyl-4-aminopyridinium][Ni(mnt)(2)] and [1-(4'-fluorobenzyl)pyridinium][Ni(mnt)(2)] at high temperature, respectively. The natural bond orbital analysis suggested that the cooperative effect of the weak intermolecular bondings may be the intrinsic driving force resulting in the switchable property, which is essentially similar to those in organic radicals exhibiting magnetic bistability. Further investigations with varying interlayer distance d, the extent of slippage (slipping distance r and deviation angle alpha), and rotational angle theta suggested that the extent of slippage played an important role in magnetic interactions. Therefore, the abrupt modulation of the extent of slippage in the [Ni(mnt)(2)](-) complexes by external perturbations provided new possibilities for the design of molecular magnetic switching devices." @default.
- W2076252363 created "2016-06-24" @default.
- W2076252363 creator A5011779942 @default.
- W2076252363 creator A5017140386 @default.
- W2076252363 creator A5017909401 @default.
- W2076252363 creator A5020347295 @default.
- W2076252363 creator A5020370288 @default.
- W2076252363 creator A5031884257 @default.
- W2076252363 creator A5079313835 @default.
- W2076252363 date "2005-09-23" @default.
- W2076252363 modified "2023-10-16" @default.
- W2076252363 title "Theoretical Studies on the Magnetic Switching Controlled by Stacking Patterns of Bis(maleonitriledithiolato) Nickelate(III) Dimers" @default.
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