Synthesis and stereochemical features of tartratostannates with complex 1,10-phenanthroline cations of Fe(II), Co(II), Ni(II), Cu(II), Zn(II)

Five heterometallic mixed-ligand cation-anionic complexes perspective for creation of new effective nontoxic drugs [Fe(phen)(3)](2)[Sn-2(mu-Tart)(2)(H(2)Tart)(2)]center dot 2H(2)O (I), [Co(phen)(3)](2)[Sn-2(mu-Tart)(2)(H(2)Tart)(2)]center dot 8H(2)O (II), [Ni(phen)(3)[(2)[Sn-2(mu-Tart)(2)(H(2)Tart)(2)]center dot 2H(2)O (III), [Cu(phen)(3)1(2)[Sn-2(mu-Tart)(2)(H(2)Tart)(2)]center dot 2H(2)O (IV), [Zn (Phen)(3)](2)[Sn-2(mu-Tart)(2)(H(2)Tart)(2)]center dot 6H(2)O (V) with two types of ligands: ditopic polydentate tartaric acid (Tart) and cyclic bidentate 1,10-phenanthroline (phen), p-(Sn) and d-metals (Fe, Co, Ni, Cu, Zn) in their composition were synthesized. The studied complexes I-V are isostructural and contain complex anion [Sn-2(mu-Tart)(2)(H(2)Tart)(2)](4-), polyhedrons of two Sn atoms are octahedrons, that are formed by dimeric Sn-2(Tart(4-))(2) fragment and bidentate coordination of two terminal H(2)Tart(2)(-). All cations in I-V have similar structures [Me(phen)(3)](2+) with Me = Fe, Co, Ni, Cu, Zn. The present study compares electronic analogues Sn (IV) and Ge (IV) and reveals structural features of the novel tartratostannates and previously obtained tartratogermanates with the same compositional units. (C) 2020 Elsevier Ltd. All rights reserved.