A series of new hybrid selenidostannates with metal complexes prepared in alkylol amines

Abstract

A series of new hybrid selenidostannates [Mn(en)₂(hda)]₂[Sn₂Se₆](1, en = ethylenediamine, hda = N-(2-hydroxyethyl)ethylenediamine), [Ni(teta)(en)][Ni(teta)(hda)][Sn₄Se₁₀] (2, teta = triethylenetetramine), [Mn(hda)₂]_n[SnMnSe₄]_n (3), [Mn(dien)₂]_n[SnMnSe₄]_n (4, dien = diethylenetriamine), and [Zn₂(en)₂(μ₄-SnSe₄)]_n (5) were solvothermally synthesized in hda solvent and structurally characterized. 1 is composed of a discrete [Sn₂Se₆]⁴⁻ anion and a complex [Mn(en)₂(hda)]²⁺ cation as the counterion. 2 contains the [Ni(teta)(en)]²⁺ ion, [Ni(teta)(hda)]²⁺ ion and [Sn₄S₁₀]⁴⁻ adamantane-like ion built from the corner-sharing connection of four [SnSe₄]⁴⁻ tetrahedra, which offers the rare example of hybrid selenidostannate combined with two different types of transition metal complexes as counterions. Both 3 and 4 contain a 1-D heterometallic [SnMnSe₄²⁻]_n anionic chain constructed from [Sn/MnSe₄] tetrahedra sharing opposite edges, whose Sn⁴⁺ and Mn²⁺ ions are situated at the same site in the lattice, but their chains exhibit two different configurations. 5 exhibits a new type of 2-D organic-decorated [Zn₂(en)₂(μ₄-SnSe₄)]_n layer incorporating rare tetrahedral [ZnSe₂(en)] complexes. Their optical and photocurrent response properties were studied, and density functional theory calculations for 5 were also performed.