Abstract
Preparation of solid solution and crystal-glass composite consisting of stable phenoxyl radical and its phenol analogue
Highlights
The most common molecular solids are single-component crystals, but there are many other types of molecular solids, which include non-crystalline solids and multi-component solids
It is reasonably considered that the observed shorter C–O bonds are attributed to an averaged structure of 1OH and 1M, and III was a solid solution consisting of 1OH and 1M
While evaporation of acetone solutions of phenoxyl radical 1M and phenol 1OH yield amorphous (I) and crystal (II), respectively, evaporation of mixed acetone solution of 1M and 1OH yielded solid solution III, which is isomorphic to II
Summary
The most common molecular solids are single-component crystals, but there are many other types of molecular solids, which include non-crystalline solids (amorphous or glass, liquid crystals, and plastic crystals) and multi-component solids (cocrystals, eutectic mixtures, and solid solutions). The aforementioned principle determining packing structure indicates that, when the molecules have virtually identical size, shape, and intermolecular interactions, they should give isostructural crystals and/or solid solutions. Phenoxyl radicals have rather similar size and shape to its phenol analogue, they do not necessarily give solid solutions.
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