The catalytic interconversion of ortho-para hydrogen over iron, platinum and nickel catalysts
The catalytic interconversion of ortho-para hydrogen over iron, platinum and nickel catalysts
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DOI：
10.1021/ja01312a036
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发表时间：
1935-07-01
影响因子：
15
通讯作者：
Harkness, RW
中科院分区：
文献类型：
--
作者：
Emmett, PH;Harkness, RW
在波长为5890-5896 A的圆偏振钠光中，三硝基芪不与溴结合联合收割机以产生旋光产物。三硝基芪不吸收该波长的光，在波长为3600-4500 A的圆偏振光中，三硝基芪与氯化合。得到光学活性的二氯化三硝基芪。与氯的反应比与溴的反应更快，在约45分钟内达到最大旋光功率。在较长时间的照射下，旋光性降低并最终消失。测定了三硝基二苯乙烯及其二氯化物和二溴化物的吸收光谱。
In circularly polarized sodium light of wave length 5890-5896 A., trinitrostilbene does not combine with bromine to yield an optically active product. Trinitrostilbene does notabsorb light of this wave length.Trinitrostilbene combines with chlorine in circularly polarized light of wave length 3600-4500 A. to yield optically active trinitrostilbene dichloride. The reaction with chlorine is more rapid than with bromine, the maximum rotatory power being attained in about forty-five minutes. On longer irradiation, the optical activity de-creases and finally disappears. The absorption spectra of trinitrostilbene and its dichloride and dibromide have been measured.