A New Trend in Phenalenyl Chemistry: A Persistent Neutral Radical, 2,5,8-Tri-tert-butyl-1,3-diazaphenalenyl, and the Excited Triplet State of the Gablesyn-Dimer in the Crystal of Column Motif
由萘分七个步骤合成了6,9-二(叔丁基)-1-甲基四唑并[1,5- a ]过im(1)。在1 K的丁腈基质中以77 K(λ= 351 nm)以及在Ar和Xe基质中以4.6 K(λ≥345 nm)辐照1时所记录的EPR光谱显示了六线高场信号(Δ米小号=±1),在丁腈中心在3350 G,用半场信号(Δ沿米小号=±2),其是用于三胞胎特性。对观测到的EPR谱的模拟给出了|的零场分裂参数的值。D / hc | / cm -1 = 0.0105,| E / hc | / cm -1= 0.0014的丁腈和| D / hc | / cm -1 = 0.0107,| E / hc | / cm -1= 0.0016,以Ar计。这些EPR参数与作为EPR谱图来源的双自由基5,8-二(叔丁基)-2-(N-甲基亚氨基)perimidine-1,3-diyl(3 2)一致。居里-外斯情节和UB3LYP和(14/
with a half-field signal (ΔmS = ± 2), which is characteristic for triplets. Simulation of the observed EPR spectra gave values for the zero-field splitting parameters of |D/hc|/cm−1 = 0.0105, |E/hc|/cm−1 = 0.0014 in butyronitrile and |D/hc|/cm−1 = 0.0107, |E/hc|/cm−1 = 0.0016 in Ar. These EPR parameters are consistent with the diradical 5,8-di(tert-butyl)-2-(N-methylimino)perimidine-1,3-diyl (32) as
由萘分七个步骤合成了6,9-二(叔丁基)-1-甲基四唑并[1,5- a ]过im(1)。在1 K的丁腈基质中以77 K(λ= 351 nm)以及在Ar和Xe基质中以4.6 K(λ≥345 nm)辐照1时所记录的EPR光谱显示了六线高场信号(Δ米小号=±1),在丁腈中心在3350 G,用半场信号(Δ沿米小号=±2),其是用于三胞胎特性。对观测到的EPR谱的模拟给出了|的零场分裂参数的值。D / hc | / cm -1 = 0.0105,| E / hc | / cm -1= 0.0014的丁腈和| D / hc | / cm -1 = 0.0107,| E / hc | / cm -1= 0.0016,以Ar计。这些EPR参数与作为EPR谱图来源的双自由基5,8-二(叔丁基)-2-(N-甲基亚氨基)perimidine-1,3-diyl(3 2)一致。居里-外斯情节和UB3LYP和(14/
A New Trend in Phenalenyl Chemistry: A Persistent Neutral Radical, 2,5,8-Tri-tert-butyl-1,3-diazaphenalenyl, and the Excited Triplet State of the Gablesyn-Dimer in the Crystal of Column Motif