Self-assembled monolayers of phthalocyanine derivatives on glass and silicon
作者:Michael J. Cook、Roxana Hersans、Jim McMurdo、David A. Russell
DOI:10.1039/jm9960600149
日期:——
The synthesis of three phthalocyanine derivatives functionalised with seven or eight substituents including either one or two trichlorosilylalkyl chains is described. Self-assembled monolayers of the derivatives covalently bound to silicon and glass have been formed and characterised by FTIR and visible region spectroscopies.
Synthesis and characterisation of some mesogenic mononuclear and multinuclear phthalocyanines
作者:Geoffrey C. Bryant、Michael J. Cook、Timothy G. Ryan、Andrew J. Thorne
DOI:10.1016/0040-4020(95)00927-2
日期:1996.1
tri-nuclear phthalocyanines, ie derivatives containing two or three phthalocyanine rings. These compounds have been characterised by elemental analysis and low resolution field desorption mass spectrometry, FD-MS. 1H NMR spectroscopy and gel permeation chromatography of selected examples provide supporting data. Visible region spectroscopy of dilute solutions of the multinuclear phthalocyanines in cyclohexane
已经合成了带有一个或两个羟烷基链的八取代的酞菁,并且其液晶行为通过偏光显微镜和差示扫描量热法表征。这些化合物形成具有六边形或矩形对称的盘状柱状中间相。实例已经用作合成介晶二核和三核酞菁的前体,即包含两个或三个酞菁环的衍生物。这些化合物已通过元素分析和低分辨率场解析质谱FD-MS进行了表征。1个所选实施例的1 H NMR光谱学和凝胶渗透色谱法提供了支持数据。环己烷中多核酞菁的稀溶液的可见区光谱(低至5×10 -7 mol dm -3的浓度,预期分子间聚集最小)表明该化合物作为“封闭”构象异构体之间的平衡存在其中两个环cofacially布置(宽带中心在约645nm)和具有类似于简单的前体的酞菁的吸收带的开放形式,λ最大约 730纳米 封闭的构象异构体在极性更高的介质(例如10%甲苯-90%乙醇)中更受欢迎。实例已经以均匀厚度的旋涂膜沉积在载玻片上。