摘要
A novel chiral methylpropargyl ester containing azobenzene moiety（S）-（-）-3-methyl-3-{4-[4-（n-octyloxy）phenylazophenyl]carbonyl}oxy-1-propyne 3（C25H30N2O3,Mr = 406.51） was synthesized and characterized by IR,NMR and single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21 with a=6.7610（17）,b=7.675（2）,c=22.749（7）,β=97.613（6）°,V=1170.1（6）3,Z=2,Dc=1.154,F（000）=436,μ=0.076 mm-1,R=0.0544 and wR=0.1569 for 2444 observed reflections with Ⅰ〉2σ（Ⅰ）.Structure analysis proved that the azobenzene presents a trans form, and intermolecular hydrogen bonds yield a 3D framework. The ehiral acetylene carrying azobenzene moieties can be a potential alternative nonlinear optical, helical polymer, and liquid crystalline material.
A novel chiral methylpropargyl ester containing azobenzene moiety（S）-（-）-3-methyl-3-{4-[4-（n-octyloxy）phenylazophenyl]carbonyl}oxy-1-propyne 3（C25H30N2O3,Mr = 406.51） was synthesized and characterized by IR,NMR and single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21 with a=6.7610（17）,b=7.675（2）,c=22.749（7）,β=97.613（6）°,V=1170.1（6）3,Z=2,Dc=1.154,F（000）=436,μ=0.076 mm-1,R=0.0544 and wR=0.1569 for 2444 observed reflections with Ⅰ〉2σ（Ⅰ）.Structure analysis proved that the azobenzene presents a trans form, and intermolecular hydrogen bonds yield a 3D framework. The ehiral acetylene carrying azobenzene moieties can be a potential alternative nonlinear optical, helical polymer, and liquid crystalline material.
基金
supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
