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Antiferromagnetism superexchange

Fig. 1. Exchange pathways (a) antiferromagnetic superexchange by way of a single bridge orbital, (b) a molecular orbital viewpoint for a, (c) ferromagnetic superexchangc by way of two orthogonal bridge orbitals. Fig. 1. Exchange pathways (a) antiferromagnetic superexchange by way of a single bridge orbital, (b) a molecular orbital viewpoint for a, (c) ferromagnetic superexchangc by way of two orthogonal bridge orbitals.
Antiferromagnetic superexchange Transfer of an electron of a spin from ahalf-filled orbital to an orbital that is also half-filled is constrained by the Pauli exclusion principle to be most... [Pg.256]

The first real indication of antiferromagnetic superexchange in ruthenium dimers that possessed polyatomic bridging ligands was found for the complex [ (NH3)5Ru 2(/u-t-BuMN)]5+ (76), where... [Pg.309]

When dxy orbitals are in the 180° position to each other, so that they interact via pTT orbitals on the ligand, one again obtains antiferromagnetic superexchange. [Pg.230]

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