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The anisotropic surface properties of macroscopic single crystals of C.I. Disperse Yellow 114 have been investigated. The changing contact angles between the facets of the crystal and water by drop contact angle measurements are associated with chemical heterogeneities present on the surfaces. The surface free energy on four indexed crystal facets, calculated by using Wu's method, indicated the dispersive...
New Schiff base dimers based on phenothiazine heterocycle have been obtained with high yield and purity by condensation of 3-formyl-10-methyl-phenothiazine with various amines. The structural characterization was performed by elemental analysis, FTIR, 1D and 2D NMR spectroscopy and single crystal and powder wide angle X-ray diffraction. The obtained compounds have high thermal stability and some of...
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