摘要
以脉冲激光束在高真空中溅射铁氰化钾,产生了各种组成的碳氮原子簇负离子,记录了它们的飞行时间质谱.根据这些簇离子的碰撞诱导解离研究结果,推测了它们的结构,发现它们大都具有超共轭的稳定体系,它们的构型随成簇氮原子数的增加,从一维直链向二维芳环转化.
Various binary cluster anions consisted of carbon and nitrogen elements were produced on a self - built apparatus by laser ablation of K3[Fe(CN)6]. The mass distribution was recorded by a time - of - flight mass spectrometer. The mass - selected cluster ions dissociated in colliding with a nitrogen beam and the fragment ions were mass analyzed by the secondary mass spectrometer. Based on the analysis of the experimental results, two major structural styles of the binary cluster ions, linear chain and planar ring, were suggested. The cluster ions composed of single nitrogen atom is linear, and those consisted of more than two nitrogen atoms are mostly in ring structure. Most recorded cluster ions are highly conjugated and without dangling bond.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1997年第12期1191-1197,共7页
Acta Chimica Sinica
基金
国家教委"跨世纪人才计划"基金
国家杰出青年科学基金资助项目
