Author:
Degtyarik Mikhail M.,Lyakhov Alexander S.,Grigorieva Inna M.,Ivashkevich Ludmila S.,Grigoriev Yuri V.,Ivashkevich Oleg A.
Abstract
Complexes [Сu(NCS)2L3], [Сu(NO3)2L4] and [Cu(NCS)2L4]·L have been prepared by direct synthesis involving the interaction of metallic copper, ammonium salts NH4X (Х = NCS, NO3) and 1-tert-butyl-1H-1,2,4-triazole (L). Their composition and structure were determined by elemental analysis, single crystal X-ray analysis, and IR spectroscopy (range of 4000–500 cm–1). All the complexes showed mononuclear structure. In them triazole acts as a monodentate ligand, being coordinated by the N4 atom of the heterocycle. The NCS– and NO–3 anions display monodentate N- and O-coordination, accordingly. In [Сu(NCS)2L3], copper(II) cation has square-pyramidal environment of nitrogen atoms of two ligands L and two thiocyanate anions in the basal sites, and one nitrogen atom of ligand L in the apical position. In complexes [Сu(NO3)2L4] and [Cu(NCS)2L4]·L, copper(II) cations are octahedrally surrounded by nitrogen atoms of ligand L in the equatorial sites and by O or N atoms of corresponding anions in the axial positions.
Publisher
Belarusian State University
Reference39 articles.
1. Gaponik PN, Voitekhovich SV, Ivashkevich OA. Metal derivatives of tetrazoles. Uspekhi khimii. 2006;75(6):569–603. Russian.
2. Degtyarik MM, Lyakhov AS, Ivashkevich OA, Grigoriev YuV. Complexes of Co(II), Ni(II), and Cu(II) chlorides and bromides with tetrazol-1-yl-tris(hydroxymethyl)methane: synthesis and structure. Koordinatsionnaya khimiya. 2012;38(2):83–91. Russian.
3. Degtyarik MM, Mosalkova AP, Ivashkevich OA, Gaponik PN. Direct synthesis, structure and properties of complex compounds of copper, cobalt and nickel with substituted tetrazoles. Vestnik BGU. Seriya 2. Khimiya. Biologiya. Geografiya. 2009;2:6–11. Russian.
4. Gaponik PN, Voitekhovich SV, Lyakhov AS, Matulis Vadim E, Ivashkevich OA, Quesada M, et al. Crystal structure and physical properties of the new 2D polymeric compound bis(1,5-diaminotetrazole)dichlorocopper(II). Inorganica Chimica Acta. 2005;358:2549–2557. DOI: 10.1016/i.ica.2005.03.005.
5. Mosalkova AP, Voitekhovich SV, Lyakhov AS, Ivashkevich LS, Degtyarik MM, Gaponik PN, et al. Direct synthesis and characterization of novel homo- and heterometallic mixed-ligand tetrazolate complexes, Cu(en)(tz)2 and Cu(en)2Zn(tz)4 [en = ethylenediamine, tz = tetrazolate]. Inorganic Chemistry Communications. 2009;12(10):998–1000. DOI: 10.1016/j.inoche.2009.08.003.