On the way to polyacene: synthesis and properties of higher acenes

并苯类化合物是一类重要的有机化合物，是由线性成环的苯环组成的π体系。并苯系列中除并六苯以外的其他化合物都是高活性的，因此很难研究，甚至是未知的。该研究项目的主要重点是在基质分离条件下光化学生成未知的高级并苯，并通过光谱技术对其进行表征。该研究有望回答有关高级并苯的电子基态和多自由基性质的基本问题。在低温和环境条件下的不稳定的并苯的热反应和光化学反应的调查提供了深入了解这些高活性的π系统的化学性质。

Acenes, extended pi systems composed of linearly annulated benzene rings, are an important class of organic materials. The members of the acene series beyond hexacene are highly reactive and hence were difficult to study or are even unknown. The major focus of the research project is the photochemical generation of unknown higher acenes under the conditions of matrix isolation and their characterization by spectroscopic techniques. The research is expected to answer fundamental questions concerning the electronic ground state and the poly radical character of the higher acenes. The investigation of thermal and photochemical reactions of the unstable acenes under cryogenic and ambient conditions provides an insight into the chemical properties of these highly reactive pi systems.