New supramolecular organotin(IV)/-copper(I) cyanides containing the unique {CuI2(μ-CN)2} building block
| Autor: | Hilka Hanika-Heidl, Moustafa Sh. Ibrahim, Safaa El-din H. Etaiw, Ahmed S.Bader El-din, R. Dieter Fischer |
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| Rok vydání: | 2003 |
| Předmět: |
Chemistry
Stereochemistry Organic Chemistry Supramolecular chemistry Copper(I) cyanide chemistry.chemical_element Crystal structure Block (periodic table) Biochemistry Copper Inorganic Chemistry Crystallography chemistry.chemical_compound Zigzag Materials Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Journal of Organometallic Chemistry. 684:329-337 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2003.08.013 |
| Popis: | Reaction of Me 3 SnCl/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 3 SnCN·0.5bpe] ( 2 ), [CuCN·Me 3 SnCN·0.5bpeH 2 ] ( 3 ), [CuCN·Me 3 SnCN·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 A, 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. |
| Databáze: | OpenAIRE |
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