Radical−Radical Interaction through a Saturated Link: Methylenebis-6-oxoverdazyl
摘要:
The diradical methylenebis(1,5-diisopropyl-6-oxoverdazyl) was synthesized by benzoquinone oxidation of the corresponding bis(tetrazane). The diradical crystallizes in the monoclinic space group C2/c with cell parameters a = 21.1411(8) angstrom, b = 12.4781(5) angstrom, c = 8.2457(3) angstrom, beta = 108.638(2)degrees, V = 2061.15 angstrom(3), Z = 4. Magnetic measurements indicate the diradical has a singlet ground state and triplet excited state at 150 cm(-1). Interaction between the nonconjugated radical centers is also seen in the UV-vis spectrum as a broad shoulder near 500 nm that is not apparent in the spectrum of the monoradical.
Radical−Radical Interaction through a Saturated Link: Methylenebis-6-oxoverdazyl
摘要:
The diradical methylenebis(1,5-diisopropyl-6-oxoverdazyl) was synthesized by benzoquinone oxidation of the corresponding bis(tetrazane). The diradical crystallizes in the monoclinic space group C2/c with cell parameters a = 21.1411(8) angstrom, b = 12.4781(5) angstrom, c = 8.2457(3) angstrom, beta = 108.638(2)degrees, V = 2061.15 angstrom(3), Z = 4. Magnetic measurements indicate the diradical has a singlet ground state and triplet excited state at 150 cm(-1). Interaction between the nonconjugated radical centers is also seen in the UV-vis spectrum as a broad shoulder near 500 nm that is not apparent in the spectrum of the monoradical.