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Crystal structure of a Cu(II) complex with a bridging ligand: poly[[penta-kis-[μ2-1,1'-(butane-1,4-di-yl)bis-(1H-imidazole)-κ(2) N (3):N (3')]dicopper(II)] tetranitrate tetra-hydrate].

Wu F, Shang M, Li S, Zhao Y - Acta Crystallogr Sect E Struct Rep Online (2014)

Bottom Line: The Cu(II) cations are linked by biim ligands to give a 4(4) layer; the layers are further bridged by biim ligands, generating a double sheet with a thickness of 14.61 Å.The sheet features rhombic Cu4(biim)4 windows built up from four Cu(II) centers and four biim ligands with dimensions of 14.11 × 14.07 Å(2).Each window of a layer is penetrated directly by the biim ligand of the adjacent net, giving a two-dimensional→three-dimensional entangled framework.

View Article: PubMed Central - HTML - PubMed

Affiliation: Heilongjiang Agricultural Vocational and Technical College, JiaMuSi 154007 Heilongjiang, People's Republic of China.

ABSTRACT
A novel two-dimensional→three-dimensional Cu(II) coordination polymer, {[Cu2(C10H14N4)5](NO3)4·4H2O} n , based on the 1,1'-(butane-1,4-di-yl)bis-(1H-imidazole) (biim) ligand and containing one crystallographically unique Cu(II) atom, has been synthesized under hydro-thermal conditions. The Cu(II) atom is coordinated by five N atoms from biim ligands, one of which has crystallographically imposed inversion symmetry, giving rise to a slightly distorted CuN5 square-pyramidal geometry. The Cu(II) cations are linked by biim ligands to give a 4(4) layer; the layers are further bridged by biim ligands, generating a double sheet with a thickness of 14.61 Å. The sheet features rhombic Cu4(biim)4 windows built up from four Cu(II) centers and four biim ligands with dimensions of 14.11 × 14.07 Å(2). Each window of a layer is penetrated directly by the biim ligand of the adjacent net, giving a two-dimensional→three-dimensional entangled framework.

No MeSH data available.


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The two-dimensional→three-dimensional framework in (I).
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fig4: The two-dimensional→three-dimensional framework in (I).

Mentions: It is noteworthy that every Cu4(biim)4 unit of each layer is threaded through simultaneously by the biim ligand from an adjacent layer in a parallel fashion, forming a two-dimen­sional→three-dimensional entangled framework, as highlighted in Fig. 4 ▶. All sheets are identical, and all the Cu4(biim)4 windows are equivalent. As far as we know, so far only a few examples of two-dimensional→three-dimensional entangled structures have been observed: the networks in these are mainly focused on 44 and 63 topologies. Two-dimensional→three-dimensional entangled frameworks with 48.62 topology have scarcely been reported.


Crystal structure of a Cu(II) complex with a bridging ligand: poly[[penta-kis-[μ2-1,1'-(butane-1,4-di-yl)bis-(1H-imidazole)-κ(2) N (3):N (3')]dicopper(II)] tetranitrate tetra-hydrate].

Wu F, Shang M, Li S, Zhao Y - Acta Crystallogr Sect E Struct Rep Online (2014)

The two-dimensional→three-dimensional framework in (I).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257462&req=5

fig4: The two-dimensional→three-dimensional framework in (I).
Mentions: It is noteworthy that every Cu4(biim)4 unit of each layer is threaded through simultaneously by the biim ligand from an adjacent layer in a parallel fashion, forming a two-dimen­sional→three-dimensional entangled framework, as highlighted in Fig. 4 ▶. All sheets are identical, and all the Cu4(biim)4 windows are equivalent. As far as we know, so far only a few examples of two-dimensional→three-dimensional entangled structures have been observed: the networks in these are mainly focused on 44 and 63 topologies. Two-dimensional→three-dimensional entangled frameworks with 48.62 topology have scarcely been reported.

Bottom Line: The Cu(II) cations are linked by biim ligands to give a 4(4) layer; the layers are further bridged by biim ligands, generating a double sheet with a thickness of 14.61 Å.The sheet features rhombic Cu4(biim)4 windows built up from four Cu(II) centers and four biim ligands with dimensions of 14.11 × 14.07 Å(2).Each window of a layer is penetrated directly by the biim ligand of the adjacent net, giving a two-dimensional→three-dimensional entangled framework.

View Article: PubMed Central - HTML - PubMed

Affiliation: Heilongjiang Agricultural Vocational and Technical College, JiaMuSi 154007 Heilongjiang, People's Republic of China.

ABSTRACT
A novel two-dimensional→three-dimensional Cu(II) coordination polymer, {[Cu2(C10H14N4)5](NO3)4·4H2O} n , based on the 1,1'-(butane-1,4-di-yl)bis-(1H-imidazole) (biim) ligand and containing one crystallographically unique Cu(II) atom, has been synthesized under hydro-thermal conditions. The Cu(II) atom is coordinated by five N atoms from biim ligands, one of which has crystallographically imposed inversion symmetry, giving rise to a slightly distorted CuN5 square-pyramidal geometry. The Cu(II) cations are linked by biim ligands to give a 4(4) layer; the layers are further bridged by biim ligands, generating a double sheet with a thickness of 14.61 Å. The sheet features rhombic Cu4(biim)4 windows built up from four Cu(II) centers and four biim ligands with dimensions of 14.11 × 14.07 Å(2). Each window of a layer is penetrated directly by the biim ligand of the adjacent net, giving a two-dimensional→three-dimensional entangled framework.

No MeSH data available.


Related in: MedlinePlus