Abstract
INTRODUCTION The construction of functional materials from molecular building blocks as part of the field of supramolecular chemistry has gained increasing interest last time [1-2]. Supramolecular chemistry can be divided into two main and partly overlapping areas. One is the area of host-guest complementary molecules. The discovery of cation-binding crown ethers in the midle 1960's had a great impact on organic chemistry [3]. Since when a lot of receptors which can bind substrate molecules selectivity have been designed and synthesized. This binding, based on molecular recognition, can be followed by a chemical reaction, a transport process, or a detectable signal, i.e. a change in conformation or in electronic, ionic or optical properties. The second area in supramolecular chemistry concerns the formation of large molecular aggregates, in solution or in the solid state. The example of this type of compounds is phthalocyaninates of different metals.
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