Crystalline Behavior and Structure of a Liquid Crystal Compound, 5-{[4 '-(((Pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne

doi:10.1002/cjoc.201190133

CORC > 化学研究所 > 中国科学院化学研究所

	Crystalline Behavior and Structure of a Liquid Crystal Compound, 5-{[4 '-(((Pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne
	Liu Leijing 1; Li Gao 2; Zhou Enie 2; Lam, Jacky Wing Yip 3; Tang Benzhong 3
刊名	CHINESE JOURNAL OF CHEMISTRY
	2011-04-01
卷号	29 期号:4 页码:631-638
关键词	Crystal Growth Crystal Morphology Crystal Structure Electron Diffraction Single Crystal
ISSN号	1001-604X
DOI	10.1002/cjoc.201190133
英文摘要	Single crystals of two liquid crystal compounds, 5-{[4'-(((pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne (A3EO5) and 5-{[(4'-nonyloxy-4-biphenylyl)carbonyl]oxy}-1-pentyne (A3EO9), have been prepared by solution growth technique. The morphologies and structures of A3EO5 and A3EO9 crystals were investigated by wide angle X-ray diffraction (WXRD), atom force microscope (AFM) and transmission electron microscope (TEM). In contrast to the same series of compounds which have a longer alkyl tail, 5-{[(4'-heptoxy-4-biphenylyl)carbonyl]oxy}-1-pentyne (A3EO7), 5-{[(4'-heptoxy-4-biphenylyl) oxy] carbonyl}-1-pentyne (A3E'O7) and A3EO9, A3EO5 shows strikingly different crystalline behavior. The former three compounds have only one crystal form, whereas A3EO5 exhibits polymorphism. Specifically, A3EO5 crystals grown from toluene solution show two crystal forms. The first one is crystal I which adopts a monoclinic P112/m space group with unit cell parameters of a-5.79 angstrom, b=8.34 angstrom, c=43.92 angstrom, gamma=96 degrees, and the other one is crystal II which adopts a monoclinic P112 space group with unit cell parameters of a=5.55 angstrom, b=7.38 angstrom, c=31.75 angstrom, gamma=94 degrees. When using dioxane as the solvent to grow A3EO5 crystal, we can selectively obtain crystal I. A3EO5 melt-grown crystals also have two crystal forms which derive from crystal I and crystal II, respectively. The different crystalline behavior of the compounds should correlate with their different electron dipole moment resulting from the different length of alkyl tail.
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000289938000004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72863]
专题	中国科学院化学研究所
通讯作者	Liu Leijing
作者单位	1.Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 3.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Liu Leijing,Li Gao,Zhou Enie,et al. Crystalline Behavior and Structure of a Liquid Crystal Compound, 5-{[4 '-(((Pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne[J]. CHINESE JOURNAL OF CHEMISTRY,2011,29(4):631-638.
APA	Liu Leijing,Li Gao,Zhou Enie,Lam, Jacky Wing Yip,&Tang Benzhong.(2011).Crystalline Behavior and Structure of a Liquid Crystal Compound, 5-{[4 '-(((Pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne.CHINESE JOURNAL OF CHEMISTRY,29(4),631-638.
MLA	Liu Leijing,et al."Crystalline Behavior and Structure of a Liquid Crystal Compound, 5-{[4 '-(((Pentyl)oxy)-4-biphenylyl)carbonyl]oxy}-1-pentyne".CHINESE JOURNAL OF CHEMISTRY 29.4(2011):631-638.