The reactivity of o-amidophenolate indium(iii) complexes towards different oxidants was investigated. The mono- and biradical o-iminobenzosemiquinonato indium(III) complexes were synthesized and characterized as a result.
The reaction of bis(4,6-di-tert-butyl-N-(2,6-di-iso-propylphenyl)-o-amidophenolato)indium(III) anion with alkyl iodides is reported. This process includes oxidative addition of two RI (R = Me, Et) molecules to the non-transition metal complex and results in an alkyl transfer to ring carbon atoms with the formation of two new C-C bonds. The interaction proceeds at mild conditions and gives new indium(III) derivatives containing iminocyclohexa-1,4-dienolate type ligands.
New tris‐o‐benzosemiquinonato complexes of Al, Ga, and In based on the sterically hindered o‐benzoquinone 5,8‐di‐tert‐butyl‐2,3‐dihydro‐1,4‐ethanoquinoxaline‐6,7‐dione (NN‐3,6‐Q) were synthesized. The structures of the hexacoordinate metal compounds were investigated by X‐ray diffraction. The magnetic properties of the complexes obtained were found to be strongly dependent on their molecular geometry. The octahedral Al and Ga derivatives demonstrate ferromagnetic exchange between the magnetic centers, whereas the trigonal‐prismatic In complex shows an antiferromagnetic coupling.
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