A new trinuclear heterometallic complex, [(CuL)Na(CuL)]·ClO4 (1), has been prepared using a Schiff base, H2L (where H2L=N,N′-(1,2-phenylene)-bis(3-methoxysalicylideneimine) and characterized by elemental analysis, Fourier transform infra-red (FT-IR) spectroscopy, UV/Vis, magnetic, electrochemical, and single crystal X-ray diffraction methods. The structure analysis reveals that two metallo-ligand [(CuL)] units are connected to each other by a sodium ion resulting in the cationic unit [(CuL)Na(CuL)]+. Both the copper(II) ions display an almost square planar geometry while the sodium ion adopts a trigonal-dodecahedral coordination geometry. The spectroscopic and other physicochemical studies are in good agreement with the crystal structure of the complex.
Single crystals of samples 1-3 have been grown from complex boron-containing hydrothermal solutions at range of temperatures of 400-750°C and pressures of up to 150 MPa in the IEM RAS [1]. Cubearing tourmaline (sample 4) has been synthesised in the Institute of Mineralogy and Petrography SB RAS [2]. X-ray experiment was carried out on four-circle single-crystal diffractometer Nicolett R3.The content of 3d-elements in multicolor synthetic tourmalines can rise up to 24 wt. % (in oxide form) and in the case of Ni, Co, Cu-tourmalines it is significantly higher than that found in natural specimens. The total content of 3d-elements and the ratio of its' ionic radii are the reason for the unit cell parameters and octahedral dimensions variations. In all cases chromophore elements occupied Y (mainly) and Z octahedra (table 2).Table 2. Characteristic of Y and Z octahedral.
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