128488-43-7Relevant academic research and scientific papers
Preparation of unsymmetric phthalocyanines with benzylchalcogeno and butoxy groups
Kimura, Takeshi,Obonai, Takeru,Namauo, Toshiharu
scheme or table, p. 755 - 758 (2010/09/18)
A mixture of 4,5-dibenzylchalcogeno-3,6-diethylphthalonitrile and 4,5-dibutoxyphthalonitrile was treated with lithium in n-pentanol at 110 °C to give unsymmetric phthalocyanines. Optical and electrochemical properties of them were examined by UV-vis spect
Control of the Discotic to Isotropic Transition in Alkoxy-Substituted Silicondihydroxo-Phthalocyanines by Axial Substituents
Sauer, Thomas,Wegner, Gerhard
, p. 97 - 118 (2007/10/02)
The synthesis of a homologous series of octaalkoxy-substituted silicondihydroxo-phthalocyanines is described.The mesomorphic properties of these new materials were studied by DSC, optical microscopy and X-ray investigations.Compounds with n >/= 4 (n is the number of carbon atoms in a single alkoxy side chain) show a discotic mesophase transition.A transition to the isotropic state is only observed when n >/= 8.X-ray diffraction patterns of the mesophases confirm that all compounds form a hexagonal columnar mesophase of the type Dhd.
