ABSTRACT
Porous molecular systems with a developed surface, susceptible to chemical modi-œcations of the matrix by displacement reactions in the lattice, to regulations of surface properties by immobilization, and to addition of acidic/basic or metallic centers, are of great interest in modern materials science. The design of such (often strongly amorphous) systems, aimed at controlling micro-and macrostructures and œtting pore sizes and channels, requires reliable methods of investigation, such as solidstate NMR. Similar problems exist with materials of other nature requiring, thus, a common strategy for their solution.
