Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂
The title compound, [Cu(N₃)(NCO)(C₆H₁₆N₂)]₂, crystallizes in the space groupP2₁/n, witha=8.336(1),b=17.405(3),c=8.376(1) Å, β=109.73(2)o andZ=4. The molecules are arranged as centrosymmetric dimers in which two azide ligands bridge neighboring copper ions in an asymmetric head-on fashion. The Cu(II)...
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| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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1997
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/139042 |
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I19-R120-10915-139042 |
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dspace |
| institution |
Universidad Nacional de La Plata |
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I-19 |
| repository_str |
R-120 |
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SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Química Crystal structure copper(II) dimer EPR spectrum |
| spellingShingle |
Física Química Crystal structure copper(II) dimer EPR spectrum Piro, Oscar Enrique Castellano, Eduardo Ernesto Zukerman Schpector, Julio De Simone, C. A. Martino, D. M. Steren, C. A. Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| topic_facet |
Física Química Crystal structure copper(II) dimer EPR spectrum |
| description |
The title compound, [Cu(N₃)(NCO)(C₆H₁₆N₂)]₂, crystallizes in the space groupP2₁/n, witha=8.336(1),b=17.405(3),c=8.376(1) Å, β=109.73(2)o andZ=4. The molecules are arranged as centrosymmetric dimers in which two azide ligands bridge neighboring copper ions in an asymmetric head-on fashion. The Cu(II) ion is coordinated to five nitrogen atoms which form a distorted tetragonal pyramid. At the pyramid base are the two N atoms of a diEten molecule [Cu−N=2.00(1), 2.130(9) Å], an azide end atom [Cu−N=1.99(1) Å] and a NCO group [Cu−N=1.93(1) Å]. At the pyramid apex is the other, inversion related, azide N atom in the dimer [Cu−N=2.38(1) Å]. This Cu−N contact links the monomers within a dimer. Neighboring dimers are coupled by weak N−H…O contacts. Single crystal EPR data at X-band show that the pair of resonances expected for neighboring, magnetically nonequivalents dimers, collapse into a single line, a signature of inter-dimers superexchange coupling. The observed crystal gyromagnetic tensor is used to disclose the electronic and magnetic structure around Cu(II) ions. |
| format |
Articulo Articulo |
| author |
Piro, Oscar Enrique Castellano, Eduardo Ernesto Zukerman Schpector, Julio De Simone, C. A. Martino, D. M. Steren, C. A. |
| author_facet |
Piro, Oscar Enrique Castellano, Eduardo Ernesto Zukerman Schpector, Julio De Simone, C. A. Martino, D. M. Steren, C. A. |
| author_sort |
Piro, Oscar Enrique |
| title |
Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| title_short |
Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| title_full |
Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| title_fullStr |
Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| title_full_unstemmed |
Crystal structure and EPR spectrum of dimeric di-μ-azide-bis[cyanide(N,N-diethylethylenediamine)]-copper(II), [Cu(N₃)(NCO)(diEten)]₂ |
| title_sort |
crystal structure and epr spectrum of dimeric di-μ-azide-bis[cyanide(n,n-diethylethylenediamine)]-copper(ii), [cu(n₃)(nco)(dieten)]₂ |
| publishDate |
1997 |
| url |
http://sedici.unlp.edu.ar/handle/10915/139042 |
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