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Probing solvent-ligand interactions in colloidal nanocrystals by the NMR line broadening

(2018) CHEMISTRY OF MATERIALS. 30(15). p.5485-5492
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Abstract
Although solvent-ligand interactions play a major role in nanocrystal synthesis, dispersion formulation, and assembly, there is currently no direct method to study this. Here we examine the broadening of H-1 NMR resonances associated with bound ligands and turn this poorly understood descriptor into a tool to assess solvent-ligand interactions. We show that the line broadening has both a homogeneous and a heterogeneous component. The former is nanocrystal-size dependent, and the latter results from solvent-ligand interactions. Our model is supported by experimental and theoretical evidence that correlates broad NMR lines with poor ligand solvation. This correlation is found across a wide range of solvents, extending from water to hexane, for both hydrophobic and hydrophilic ligand types, and for a multitude of oxide, sulfide, and selenide nanocrystals. Our findings thus put forward NMR line-shape analysis as an indispensable tool to form, investigate, and manipulate nanocolloids.
Keywords
METAL-SELENIDE NANOCRYSTALS, PBS QUANTUM DOTS, OXIDE NANOCRYSTALS, SURFACE-CHEMISTRY, SIZE, NANOPARTICLES, SUPERLATTICES, EXCHANGE, BINDING, NANOMATERIALS

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Citation

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MLA
De Roo, Jonathan, et al. “Probing Solvent-Ligand Interactions in Colloidal Nanocrystals by the NMR Line Broadening.” CHEMISTRY OF MATERIALS, vol. 30, no. 15, 2018, pp. 5485–92, doi:10.1021/acs.chemmater.8b02523.
APA
De Roo, J., Yazdani, N., Drijvers, E., Lauria, A., Maes, J., Owen, J. S., … Hens, Z. (2018). Probing solvent-ligand interactions in colloidal nanocrystals by the NMR line broadening. CHEMISTRY OF MATERIALS, 30(15), 5485–5492. https://doi.org/10.1021/acs.chemmater.8b02523
Chicago author-date
De Roo, Jonathan, Nuri Yazdani, Emile Drijvers, Alessandro Lauria, Jorick Maes, Jonathan S Owen, Isabel Van Driessche, et al. 2018. “Probing Solvent-Ligand Interactions in Colloidal Nanocrystals by the NMR Line Broadening.” CHEMISTRY OF MATERIALS 30 (15): 5485–92. https://doi.org/10.1021/acs.chemmater.8b02523.
Chicago author-date (all authors)
De Roo, Jonathan, Nuri Yazdani, Emile Drijvers, Alessandro Lauria, Jorick Maes, Jonathan S Owen, Isabel Van Driessche, Markus Niederberger, Vanessa Wood, José Martins, Ivan Infante, and Zeger Hens. 2018. “Probing Solvent-Ligand Interactions in Colloidal Nanocrystals by the NMR Line Broadening.” CHEMISTRY OF MATERIALS 30 (15): 5485–5492. doi:10.1021/acs.chemmater.8b02523.
Vancouver
1.
De Roo J, Yazdani N, Drijvers E, Lauria A, Maes J, Owen JS, et al. Probing solvent-ligand interactions in colloidal nanocrystals by the NMR line broadening. CHEMISTRY OF MATERIALS. 2018;30(15):5485–92.
IEEE
[1]
J. De Roo et al., “Probing solvent-ligand interactions in colloidal nanocrystals by the NMR line broadening,” CHEMISTRY OF MATERIALS, vol. 30, no. 15, pp. 5485–5492, 2018.
@article{8574910,
  abstract     = {{Although solvent-ligand interactions play a major role in nanocrystal synthesis, dispersion formulation, and assembly, there is currently no direct method to study this. Here we examine the broadening of H-1 NMR resonances associated with bound ligands and turn this poorly understood descriptor into a tool to assess solvent-ligand interactions. We show that the line broadening has both a homogeneous and a heterogeneous component. The former is nanocrystal-size dependent, and the latter results from solvent-ligand interactions. Our model is supported by experimental and theoretical evidence that correlates broad NMR lines with poor ligand solvation. This correlation is found across a wide range of solvents, extending from water to hexane, for both hydrophobic and hydrophilic ligand types, and for a multitude of oxide, sulfide, and selenide nanocrystals. Our findings thus put forward NMR line-shape analysis as an indispensable tool to form, investigate, and manipulate nanocolloids.}},
  author       = {{De Roo, Jonathan and Yazdani, Nuri and Drijvers, Emile and Lauria, Alessandro and Maes, Jorick and Owen, Jonathan S and Van Driessche, Isabel and Niederberger, Markus and Wood, Vanessa and Martins, José and Infante, Ivan and Hens, Zeger}},
  issn         = {{0897-4756}},
  journal      = {{CHEMISTRY OF MATERIALS}},
  keywords     = {{METAL-SELENIDE NANOCRYSTALS,PBS QUANTUM DOTS,OXIDE NANOCRYSTALS,SURFACE-CHEMISTRY,SIZE,NANOPARTICLES,SUPERLATTICES,EXCHANGE,BINDING,NANOMATERIALS}},
  language     = {{eng}},
  number       = {{15}},
  pages        = {{5485--5492}},
  title        = {{Probing solvent-ligand interactions in colloidal nanocrystals by the NMR line broadening}},
  url          = {{http://doi.org/10.1021/acs.chemmater.8b02523}},
  volume       = {{30}},
  year         = {{2018}},
}

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