ИСТИНА

Synthesis and investigation of the low-valent derivatives of Group 14 elements (M= Si, Ge, Sn, Pb) represents an actual scientific task. In our works various polydentate ligands (N,N,N-, N,N,O-, O,N,O-types etc.) were used for obtaining the tetrylenes (Figure 1). Furthermore, the tetrylenes obtained were used as ligands in metal (Pd, Mo, W) complexes. Compounds of Group 14 elements (E = Si, Ge, Sn) with element – element bonds due to the presence of σ-conjugation along the chain of E atoms acquire useful properties typical for unsaturated compounds (intense UV absorption, conductivity, electrochemical reaction, luminescence). The establishment of the dependence of these properties from the structure represents an actual scientific challenge. In this report the recent results obtained in our scientific group concerning the catenated derivatives based on polydentate ligands are also presented.