Single molecules of terrylene in di-substituted naphthalenes crystallizing in the herringbone pattern
作者:Magda Białkowska、Wojciech Chaładaj、Irena Deperasińska、Aleksandra Drzewiecka-Antonik、Anna E. Koziol、Artur Makarewicz、Bolesław Kozankiewicz
DOI:10.1039/c6ra27167g
日期:——
2,3-Dichloronaphthalene (2,3-DCN) and 2,3-dibromonaphthalene (2,3-DBN) were synthesized, purified and used to grow single crystals in the form of thin plates. X-ray crystallographic studies, performed for the first time, showed that molecules in both isostructural crystals are arranged in the herringbone pattern. These crystals, lightly doped with terrylene (Tr), appeared to be very good systems for
2,3-二氯萘(2,3-DCN)和2,3-二溴萘(2,3-DBN)被合成,纯化并用于生长薄板形式的单晶。首次进行的X射线晶体学研究表明,两种同构晶体中的分子均以人字形排列。这些晶体轻掺杂有三甲苯(Tr),似乎是用于光学单分子研究的非常好的系统。超过主要的纯电子(0,0)和约250 cm -1频率的强振动线的5 K处的单个Tr分子的荧光激发光谱具有一条新的“ 184 cm -1 ”线,而该谱线在光谱中不存在。隔离(D 2h)Tr。量子化学计算表明,这条新线是Tr分子在晶体结构中变形的指纹,这使其对称性降低到C 2h。