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Article: Tuning electronic properties of metallic atom in bondage to a nanospace

TitleTuning electronic properties of metallic atom in bondage to a nanospace
Authors
KeywordsChemicals And Cas Registry Numbers
Issue Date2005
PublisherAmerican Chemical Society. The Journal's web site is located at http://www.pubs.acs.org/jpcb
Citation
Journal of Physical Chemistry B, 2005, v. 109 n. 18, p. 8779-8785 How to Cite?
AbstractThe possibility of modulating the electronic configurations of the innermost atoms inside a nanospace, nano sheath with chemical modification was investigated using synchrotron X-ray photoelectron spectroscopy. Systems of definite nanostructures were chosen for this study. Systematic variations in energy, intensity, and width of π* and σ* O 1s core level spectra, in absorption characteristics of C 1s→π* transition, in photoabsorption of pre-edge and resonance regions of the Gd 4d→4f transition, were observed for Gd@C82 (an isolated nanospace for Gd), Gd@C82(OH)12 (a modified nanospace for Gd), and Gd@C 82(OH)22 (a differently modified nanospace for Gd), and the reference materials Gd-DTPA (a semi-closed space for Gd) and Gd 2O3. A sandwich-type electronic interaction along [outer modification group]-[nano sheaths]-[inner metallic atom] was observed in the molecules of modifications. This makes it possible to control electron-donation directions, either from the innermost metallic atom toward the outer nano sheaths or the reverse. The results suggest that one may effectively tune the fine structures of electronic configurations of such a metallic atom being astricted into nanostructures through changing the number or category of outer groups of chemical modifications. This may open a door to realizing the desired designs for electronic and magnetic properties of functionalized nanomaterials. © 2005 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/91239
ISSN
2015 Impact Factor: 3.187
2015 SCImago Journal Rankings: 1.414
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTang, Jen_HK
dc.contributor.authorXing, Gen_HK
dc.contributor.authorYuan, Hen_HK
dc.contributor.authorCao, Wen_HK
dc.contributor.authorJing, Len_HK
dc.contributor.authorGao, Xen_HK
dc.contributor.authorQu, Len_HK
dc.contributor.authorCheng, Yen_HK
dc.contributor.authorYe, Cen_HK
dc.contributor.authorZhao, Yen_HK
dc.contributor.authorChai, Zen_HK
dc.contributor.authorIbrahim, Ken_HK
dc.contributor.authorQian, Hen_HK
dc.contributor.authorSu, Ren_HK
dc.date.accessioned2010-09-17T10:15:27Z-
dc.date.available2010-09-17T10:15:27Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal of Physical Chemistry B, 2005, v. 109 n. 18, p. 8779-8785en_HK
dc.identifier.issn1520-6106en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91239-
dc.description.abstractThe possibility of modulating the electronic configurations of the innermost atoms inside a nanospace, nano sheath with chemical modification was investigated using synchrotron X-ray photoelectron spectroscopy. Systems of definite nanostructures were chosen for this study. Systematic variations in energy, intensity, and width of π* and σ* O 1s core level spectra, in absorption characteristics of C 1s→π* transition, in photoabsorption of pre-edge and resonance regions of the Gd 4d→4f transition, were observed for Gd@C82 (an isolated nanospace for Gd), Gd@C82(OH)12 (a modified nanospace for Gd), and Gd@C 82(OH)22 (a differently modified nanospace for Gd), and the reference materials Gd-DTPA (a semi-closed space for Gd) and Gd 2O3. A sandwich-type electronic interaction along [outer modification group]-[nano sheaths]-[inner metallic atom] was observed in the molecules of modifications. This makes it possible to control electron-donation directions, either from the innermost metallic atom toward the outer nano sheaths or the reverse. The results suggest that one may effectively tune the fine structures of electronic configurations of such a metallic atom being astricted into nanostructures through changing the number or category of outer groups of chemical modifications. This may open a door to realizing the desired designs for electronic and magnetic properties of functionalized nanomaterials. © 2005 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://www.pubs.acs.org/jpcben_HK
dc.relation.ispartofJournal of Physical Chemistry Ben_HK
dc.subjectChemicals And Cas Registry Numbersen_HK
dc.titleTuning electronic properties of metallic atom in bondage to a nanospaceen_HK
dc.typeArticleen_HK
dc.identifier.emailCheng, Y:yuecheng@hku.hken_HK
dc.identifier.authorityCheng, Y=rp1320en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp050374ken_HK
dc.identifier.pmid16852042-
dc.identifier.scopuseid_2-s2.0-19944385283en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-19944385283&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume109en_HK
dc.identifier.issue18en_HK
dc.identifier.spage8779en_HK
dc.identifier.epage8785en_HK
dc.identifier.isiWOS:000228982900039-

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