机构地区: 渤海大学化学化工与食品安全学院超精细化学品研究所
出 处: 《光谱实验室》 2003年第6期930-932,共3页
摘 要: 首次发现并证实了在 4 ,4′-二硝基二苯乙烯 - 2 ,2′-二磺酸稀溶液中存在顺反异构现象。采用紫外吸收光谱对其稀溶液的光致顺反异构进行了研究。结果表明 ,溶液的浓度越稀 ,光照时间越长 ,反式异构体转化成顺式异构体越快、越多。 The photo-induced cis-trans isomerism in dilute DNS solution was discovered and confirmed for the first time,and was studied by UV absorption spectra.The results show that,the more dilute the concentration of the solution and the longer the illumination time is, the more and faster the transformation from trans-DNS to cis-DNS is.