@紫外秈可见哑收光谱 n→>兀*跃迁:不在同一平面,比较困难 吸收小,≤100 532紫外光谱图 CHI CH3 06 Absorbance 02 200210220230 260 27020-2300 310320 FIGURE 13.3 The UV absorption spectrum of 2,5-dimethyl-2, 4-hexadiene in methanol at a concentration of 5.95 x 10- M in a 1. 00-cm cell, (Spectrum courtesy of Sadtler Research Laboratories, Inc., Philadelphia.n→* 跃迁：不在同一平面，比较困难 吸收小，100 §3.2 紫外光谱图