CREATION AND CHARACTERIZATION OF CARBENES HAVING UNUSUAL STRUCTURE

内过氧化物和二氧乙烷的单电子氧化和还原导致它们通过链式过程分解产生单线态氧和化学发光。本研究探讨了低聚内过氧化物和二氧乙烷的合成，以建立电子接力反应体系。研究了该体系的光反应及其控制，合成了聚甲基萘和二芳基十二烷。三碘苯、乙基苯和邻苯二甲酸可用于合成上述线性、侧链和树突状低聚物。光诱导分解低聚过氧化物可挤出二氧。产品分析表明单线态氧的高效生成。用荧光分光光度法初步测定了单线态氧的产率约为70%。然而，该值缺乏可重复性。最近，人们发现，分光光度计有不良的光学设计和意想不到的降低灵敏度的探测器。采用改进光学设计的分光光度计和新型检测器，研究了增感剂和溶剂对单线态产氧收率的影响

Single-electron oxidation and reduction of endoperoxides and dioxetanes result in their decomposition via chain process to generate singlet oxygen and chemiluminescence. In this study, synthesis of oligomeric endoperoxides and dioxetanes is examined in order to constitute electron-relay reaction systems. Also studied is the photoreaction and control of the systemsSynthesis of polymethylnaphthelenes and diaryldoxetanes are performed. Triiodobenzene, ethynylbenzene, and phthalic acids are used to synthesize the above mentioned oligomers of linear, side-chained, and dendrimer typesPhotoinduced decomposition of the oligomeric peroxides results in extrusion of dioxygen. Product analysis suggests efficient generation of singlet oxygen. The yield of singlet oxygen was tentatively determined to be about 70% by using fluorescence spectrophotometry. However, the value lacks reproducibility. Quite recently, it is found that the spectrophotometer has poor optical design and unexpectedly diminished sensitivity of the detector. The spectrophotometer with modified optical design and new detector is used to investigate the effect of sensitizer and solvent on the yield of singlet oxygen production