摘要
吲(?)啉螺苯并吡喃是人们研究的比较多的一类光致变色化合物。我们是在N-(β-羟乙基)-3′,3′-二甲基-6-R-8-R′吲哚啉[2,2′-(2H-1)]苯并吡喃及其衍生物合成的基础上研究其红外光谱。这些化合物的羟基伸缩振动谱带在3420—3220cm^(-1),强度大而谱带宽(见图1-a);羟基变形振动在1060—1020cm(~1)之间。若分子中的6-或8-位存在硝基,羟基伸缩振动谱带变窄,强度降低,并且有双带出现的现象(见图l-b).C(?)—O—
On the basis of synthesis of N-(βethanol)-3,3-dimetylindolinospirobenzopyrans and derivatives, IR spectrum have been investigated. Evidently, the VOH varies of introducing nitro group at 6- or 8- position of the molecule. The double peak appears for some compounds. The vc.piro-O-C = is between 1260-1210cm-2 while vcare,-N appears two bands being between 1330-1300cm-1 and 1295-1250 cm-1 respectively.
出处
《感光科学与光化学》
CSCD
1989年第1期69-72,共4页
Photographic Science and Photochemistry
关键词
吲哚啉
苯并吡喃
红外光谱
螺环
indolinospirobenzopyran, stretching vibration, β-ethanol
