Abstract
Reaction of Me
3SnCl/K
3[Cu(CN)
4] with the bipodal nitrogen bases (μ-L): bis(4-pyridyl)-
trans-ethene (bpe), bis(4-pyridyl)-1,2-ethane (bpeH
2), 4-cyanopyridine (cpy) and bis(4-pyridyl)-
trans-1,4-divinylbenzene (pdvb) affords the new coordination polymers [CuCN·Me
3SnCN·0.5bpe] (
2), [CuCN·Me
3SnCN·0.5bpeH
2] (
3), [CuCN·Me
3SnCN·cpy] (
4) and [CuCN·pdvb] (
5). While
2 and
3 display layered structures with rhomboic {Cu
2(μ-CN)
2} units as basic building blocks (Cu⋯Cu distances: 2.634 and 2.758 Å, respectively),
4 crystallizes in a distorted-diamondoid structure
3
∞[Cu
I{μ-CNSn(Me
3)NC}{μ-cpy}] with four equivalent and independent, interlocking frameworks. In contrast,
5 consists of strongly corrugated, stapled sheets composed of parallel running –[Cu-pdvb]
∞– zigzag chains tied together by CN bridges. Compounds
2 and
3 belong to the rapidly growing family of supramolecular assemblies containing the quite unusual [Cu
2(μ-CN)
2] unit the repeated appearance of which raises the question if cuprophilic interactions therein are the basic cause of the existence of that family.
Reaction of Me
3SnCl/K
3[Cu(CN)
4] with the bipodal nitrogen bases (μ-L): bis(4-pyridyl)-
trans-ethene (bpe), bis(4-pyridyl)-1,2-ethane (bpeH
2), 4-cyanopyridine (cpy) and bis(4-pyridyl)-
trans-1,4-divinylbenzene (pdvb) affords the new coordination polymers [CuCN·Me
3SnCN·0.5bpe] (
2), [CuCN·Me
3SnCN·0.5bpeH
2] (
3), [CuCN·Me
3SnCN·cpy] (
4) and [CuCN·pdvb] (
5).