Self-assembly of highly luminescent bi-1,3,4-oxadiazole derivatives   through electron donor-acceptor interactions in three-dimensional   crystals, two-dimensional layers and mesophases

doi:10.1039/b804189j

CORC > 北京大学 > 化学与分子工程学院

	Self-assembly of highly luminescent bi-1,3,4-oxadiazole derivatives through electron donor-acceptor interactions in three-dimensional crystals, two-dimensional layers and mesophases
	Qu, Songnan ; Chen, Xiaofang ; Shao, Xiang ; Li, Fan ; Zhang, Hongyu ; Wang, Haitao ; Zhang, Peng ; Yu, Zhixin ; Wu, Kai ; Wang, Yue ; Li, Min
刊名	材料化学杂志
	2008
关键词	NEMATIC LIQUID-CRYSTAL SOLID-STATE TRANSPORT BEHAVIOR ORGANIZATION MOLECULES MESOGENS MIXTURES DEVICES SYSTEMS
DOI	10.1039/b804189j
英文摘要	We report on the synthesis and self-assembly of a new series of highly luminescent bi-1,3,4-oxadiazole derivatives [2,2'-bis(4-alkoyphenyl)-bi-1,3,4-oxadiazole, BOXD-n, n 1, 3, 4, 5, 6, 7, 10, 16]. Fully conjugated conformations were demonstrated either by computer simulation or in a single-crystal state. Well-defined 3D donor-acceptor (DA) architectures with strong face-to-face and edge-to-edge donor acceptor interactions were observed in the single-crystal structure of BOXD-1. Highly oriented face-on two-dimensional DA layered structures due to edge-to-edge donor-acceptor interactions were observed on highly oriented pyrolytic graphite (HOPG) in BOXD-7 and BOXD-16. Nematic phase, smectic C phase with large tilted angle (theta approximate to 50 degrees) and relatively large transition enthalpic values and a highly ordered smectic X phase were demonstrated in BOXD-n (n 5, 6, 7, 8, 10, 16) through tailing the terminal chains and relatively large scale monodomains were prepared in the smectic X phase of BOXD-5 even without any surface treatment. Strong blue fluorescent emissions were observed in BOXD-6 either in cyclohexane (Phi(F) approximate to 92%) or in solid state (Phi(F) approximate to 57%). The donor-acceptor interactions between alkyoxyphenylene rings and 1,3,4-oxadiazole rings were thought to be the driving force for the molecules to self-assemble into a large angle tilted layered structure.; Chemistry, Physical; Materials Science, Multidisciplinary; SCI(E); EI; 0; ARTICLE; 33; 3954-3964; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/262675]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Qu, Songnan,Chen, Xiaofang,Shao, Xiang,et al. Self-assembly of highly luminescent bi-1,3,4-oxadiazole derivatives through electron donor-acceptor interactions in three-dimensional crystals, two-dimensional layers and mesophases[J]. 材料化学杂志,2008.
APA	Qu, Songnan.,Chen, Xiaofang.,Shao, Xiang.,Li, Fan.,Zhang, Hongyu.,...&Li, Min.(2008).Self-assembly of highly luminescent bi-1,3,4-oxadiazole derivatives through electron donor-acceptor interactions in three-dimensional crystals, two-dimensional layers and mesophases.材料化学杂志.
MLA	Qu, Songnan,et al."Self-assembly of highly luminescent bi-1,3,4-oxadiazole derivatives through electron donor-acceptor interactions in three-dimensional crystals, two-dimensional layers and mesophases".材料化学杂志 (2008).