title: Towards Norcorrin: Hydrogenation Chemistry and the Heterodimerization of Nickel(II) Norcorrole.
abstract: 5,14-Dimesitylnorcorrolatonickel(II) was hydrogenated under mild conditions (room temperature, 1 atm H2 , THF solution, 5 min.) in the presence of Raney nickel to yield nonaromatic derivatives that were isolated and characterized by NMR spectroscopy, UV/Vis spectrophotometry, HRMS, cyclic voltammetry, and X-ray diffraction analysis. The major hydrogenation product, 1,2,3,7,8,9-hexahydronorcorrolatonickel(II), underwent dimerization in the presence of p-chloranil to give a nonsymmetrically linked 2,3'-bis(norcorrole) system that can adopt eight different oxidation states over a redox potential window of 3 V and has a HOMO-LUMO gap of 0.92 V.
authors.affiliation: Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201 (P. R. China).
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Li
authors.forename: Marcin
authors.initials: M
authors.lastname: Stępień
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Chmielewski
keywords: dimerization; hydrogenation; nickel; porphyrinoids; reduction