Preparations and Spin-spin Interactions of 4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl) Diradical and Its 1,5-Diyl Isomer
摘要:
4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl)diradical was prepared by 3%-Na-Hg reduction of the corresponding dication and the ground state was estimated to be triplet or singlet with small S-T energy gap (< 20 J mol−1). No triplet signal was observed under the similar conditions for the corresponding 1,5-diyl derivative.
Preparations and Spin-spin Interactions of 4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl) Diradical and Its 1,5-Diyl Isomer
摘要:
4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl)diradical was prepared by 3%-Na-Hg reduction of the corresponding dication and the ground state was estimated to be triplet or singlet with small S-T energy gap (< 20 J mol−1). No triplet signal was observed under the similar conditions for the corresponding 1,5-diyl derivative.