X-ray Diffraction and DOSY NMR Characterization of Self-Assembled Supramolecular Metallocyclic Species in Solution.
Wide-angle X-ray scattering and diffusion NMR techniques have been used to obtain structural information on three self-assembled metallacyclic supramolecular complexes in solution: a rectangle, a triangle, and a three-diminsional cage. The low-angle region of the measured diffraction patterns and hy...
| Publicado en: | Journal of the American Chemical Society Vol. 127; no. 30; pp. 10731 - 10739 |
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| Formato: | Artículo |
| Publicado: |
American Chemical Society
8/3/2005
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=17814087&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 17814087 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 8/3/2005 vid: 127 iid: 30 pid: 997 pub: American Chemical Society artinfo: ui: 17814087 10.1021/ja0523690 ppf: 10731 ppct: 8 formats: tig: atl: X-ray Diffraction and DOSY NMR Characterization of Self-Assembled Supramolecular Metallocyclic Species in Solution. aug: su: X-ray scattering Species Hydrodynamics Fluid dynamics Supramolecular chemistry Physical & theoretical chemistry Platinum sug: subj: X-ray scattering Species Hydrodynamics Fluid dynamics Supramolecular chemistry Physical & theoretical chemistry Platinum ab: Wide-angle X-ray scattering and diffusion NMR techniques have been used to obtain structural information on three self-assembled metallacyclic supramolecular complexes in solution: a rectangle, a triangle, and a three-diminsional cage. The low-angle region of the measured diffraction patterns and hydrodynamic radii calculations, determined from DOSY NMR experiments, suggest that the supramolecular assemblies retain their shape when dissolved in nitromethane. The experimental structure functions for the large-angle region have been analyzed, and the intramolecular contributions of the platinum-platinum interactions are discussed. These scattering measurements provide evidence that the supramolecular assemblies are not as rigid in solution as they are in the single crystal. Finally, by analysis of the radial distribution functions of the solutions, direct structural information (e.g., platinum-platinum intramolecular distances and coordination number) about the supramolecular assemblies has been obtained. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2005 holdings: @attributes: islocal: N |
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