title: Beta-nitro derivatives of germanium(IV) corrolates.
abstract: The reaction between germanium(IV) meso-triphenylcorrolates and nitrate salts affords the corresponding beta-nitro substituted corroles in good yield. Chromatographic separation of the crude reaction mixtures enables isolation of a mu-oxo dimer along with the corresponding monomers bearing a hydroxy or methoxy group at an axial position of the germanium central metal ion. Depending on the reaction conditions, mono- or dinitro substituted complexes can be obtained. The substitution is highly regioselective in each case, giving only the 3-nitro or 3,17-dinitro derivative among the different possible isomers. Five of the synthesized complexes were examined by cyclic voltammetry and UV-visible spectroelectrochemistry in dichloromethane, and the dinitro mu-oxo dimer is structurally characterized.
authors.affiliation: Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Mastroianni
authors.forename: Weihua
authors.initials: W
authors.lastname: Zhu
authors.forename: Manuela
authors.initials: M
authors.lastname: Stefanelli
authors.forename: Sara
authors.initials: S
authors.lastname: Nardis
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Smith
authors.forename: Zhongping
authors.initials: Z
authors.lastname: Ou
authors.forename: Karl M
authors.initials: KM
authors.lastname: Kadish
authors.forename: Roberto
authors.initials: R
authors.lastname: Paolesse