We report the synthesis and characterization of three dinuclear 33' complexes, (), (), and ([CuMn(NO)]), that utilize the ligand, H (6,6'-dimethoxy-2,2'-[(1,3-propylene)dioxybis(nitrilomethylidyne)]diphenol). The relative stabilities of these complexes were investigated using experimental and computational techniques, revealing a non-Irving-Williams transmetalation, whereby a Mn ion can displace a Cu ion from its binding pocket in to yield the more stable complex. Magnetic characterization of the reported complexes revealed an unexpected ferromagnetic coupling between the two Cu ions of with = +63.0 cm.
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Against the Norm: Non Irving-Williams Transmetalation in Transition Metal Dimers.
Inorg Chem
November 2022
School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North4410, New Zealand.
We report the synthesis and characterization of three dinuclear 33' complexes, (), (), and ([CuMn(NO)]), that utilize the ligand, H (6,6'-dimethoxy-2,2'-[(1,3-propylene)dioxybis(nitrilomethylidyne)]diphenol). The relative stabilities of these complexes were investigated using experimental and computational techniques, revealing a non-Irving-Williams transmetalation, whereby a Mn ion can displace a Cu ion from its binding pocket in to yield the more stable complex. Magnetic characterization of the reported complexes revealed an unexpected ferromagnetic coupling between the two Cu ions of with = +63.
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