When the sample is irradiated with the laser light of appropriate wavelength , the azo molecules undergo reversible photoinduced anisotropy from trans form to cis form 通過選擇合適的激光照射樣品,偶氮染料分子結(jié)構(gòu)發(fā)生了從反式到順式的可逆分子異構(gòu)現(xiàn)象。
For instance , the structure of dab in silver sol is a stable cis form , while that is an unstable trans form on silver mirror , which could be due to the difference of interaction between the solvent molecules and dab molecules 在銀膠中,其結(jié)構(gòu)為穩(wěn)定的反式結(jié)構(gòu),而在銀鏡表面,其結(jié)構(gòu)由反式轉(zhuǎn)變?yōu)轫樖浇Y(jié)構(gòu),這主要是由于溶液中水分子和空氣中氣體分子對dab分子作用的差別。