A New Route to Porphyrins Substituted with Long Alkoxy Groups, Attempts to Prepare the Discotic Liquid Crystals
作者:Takashi Murashima、Naoko Wakamori、Yuki Uchihara、Takuji Ogawa、Hidemitsu Uno、Noboru Ono
DOI:10.1080/10587259608033669
日期:1996.3
Pyrroles substituted with long alkoxy groups are prepared by the reaction of iminodiacetic acid dimethyl ester and dimethyl oxalate and the subsequent alkylation. These pyrroles are good precursor molecules for the corresponding porphyrins, which are expected to form an ordered columnar mesophase and are able to co-ordinate to various metals.
Charge-based and charge-free molecular assemblies comprising π-extended derivatives of anion-responsive acyclic oligopyrroles
Assemblies comprising anion complexes of Ï-extended oligopyrrole derivatives and counter cations, as well as those of anion-free receptor molecules, exhibited the formation of mesophases based on columnar structures using electrostatic and ÏâÏ interactions.
developed by Merz et al. We show that the alkyl chain length has a huge influence on the polymer solubility and as a consequence on the surface morphology and hydrophobicity. Moreover, the alkyl chain length should be at least greater than eight carbons in order to obtain parahydrophobic properties. The properties are also controlled by the electrolyte nature. These materials can be used for many potential