Publication date: 15 August 2016
Source:Journal of Crystal Growth, Volume 448
Author(s): Alexander V. Udal'tsov
Assemblies consisting of mono-protonated meso -tetraphenylporphine dimers and water have been investigated by UV–vis spectroscopy in solution and atomic force microscopy (AFM) in thin layers. These assemblies self-organized into domains produce microcrystals in thin layer. Morphology of the microcrystals and characteristic features of crystallization germ on the top found by contact AFM indicate that surface tension of an aqueous layer on the domain generates the crystallization process. Estimations of the pressure producing the germ and bulk modulus (B m ) of microcrystals give 26.3±2.6B m =12.7ћω LO =0.3761 and 0.35775 O2 +) operation like the water–porphyrin matrix self-organization found earlier.
Source:Journal of Crystal Growth, Volume 448
Author(s): Alexander V. Udal'tsov