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Volumn 51, Issue 44, 2012, Pages 10992-10996

Single nanoscale cluster species revealed by 1H NMR diffusion-ordered spectroscopy and small-angle X-ray scattering

Author keywords

cluster compounds; gallium; hydrates; NMR spectroscopy; small angle X ray scattering

Indexed keywords

DIMETHYL SULFOXIDE; GALLIUM; HYDRATES; HYDRATION; NANOTECHNOLOGY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; ORGANIC SOLVENTS; POLYMER BLENDS;

EID: 84867818771     PISSN: 14337851     EISSN: 15213773     Source Type: Journal    
DOI: 10.1002/anie.201206386     Document Type: Article
Times cited : (25)

References (36)
  • 13
    • 56749168069 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2008, 47, 9484-9486.
    • (2008) Angew. Chem. Int. Ed. , vol.47 , pp. 9484-9486
  • 30
    • 0036439131 scopus 로고    scopus 로고
    • The relationship between rate of exchange and the diffusion period at which the DOSY data is collected can impact the diffusion coefficient of each exchangeable proton on the observed species. If a proton behaves more "clusterlike" over the diffusion time, the diffusion coefficient associated with the peak in question will be more clusterlike in character and hence shifted towards the peak in question (e.g., the cluster). If the proton is acting more "waterlike" the diffusion coefficient will shift closer to water. The degree of this shift depends on the rate of exchange. Protons on the cluster that are in faster exchange will appear to have larger diffusion coefficients, which causes a large spread in the measured cluster diffusion coefficents, and hence, hydrodynamic radii. For a detailed discussion in the context of the DOSY spectra of sucrose, see:, SS 127
    • The relationship between rate of exchange and the diffusion period at which the DOSY data is collected can impact the diffusion coefficient of each exchangeable proton on the observed species. If a proton behaves more "clusterlike" over the diffusion time, the diffusion coefficient associated with the peak in question will be more clusterlike in character and hence shifted towards the peak in question (e.g., the cluster). If the proton is acting more "waterlike" the diffusion coefficient will shift closer to water. The degree of this shift depends on the rate of exchange. Protons on the cluster that are in faster exchange will appear to have larger diffusion coefficients, which causes a large spread in the measured cluster diffusion coefficents, and hence, hydrodynamic radii. For a detailed discussion in the context of the DOSY spectra of sucrose, see:, E. J. Cabrita, S. Berger, Magn. Reson. Chem. 2002, 40, S 122 -S 127.
    • (2002) Magn. Reson. Chem. , vol.40 , pp. 122
    • Cabrita, E.J.1    Berger, S.2
  • 31
    • 0003550821 scopus 로고    scopus 로고
    • Alternately, data refinement, processing, and peak overlap can result in a scattering of diffusion coefficients:, 2 nd ed., Elsevier, Oxford, . Methods for smoothing this artifact can be found in
    • Alternately, data refinement, processing, and peak overlap can result in a scattering of diffusion coefficients:, T. D. W. Claridge, High-Resolution NMR Techniques in Organic Chemistry, 2 nd ed., Elsevier, Oxford, 2009, pp. 303-334. Methods for smoothing this artifact can be found in
    • (2009) High-Resolution NMR Techniques in Organic Chemistry , pp. 303-334
    • Claridge, T.D.W.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.