schliessen

Filtern

 

Bibliotheken

Dramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.

Combined temperature-programmed desorption and IR studies suggest that absorption cross sections of IR-active vibrations of molecules "strongly" bound to single-wall carbon nanotubes (SWCNTs) are reduced at least by a factor of 10. Quantum chemical simulations show that IR intensities of endohedrall... Full description

Journal Title: Journal of the American Chemical Society June 1, 2011, Vol.133(21), pp.8191-8198
Main Author: Kazachkin, Dmitry V
Other Authors: Nishimura, Yoshifumi , Witek, Henryk A , Irle, Stephan , Borguet, Eric
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1520-5126 ; DOI: 1520-5126 ; DOI: 10.1021/ja108903u
Link: http://search.proquest.com/docview/868769440/?pq-origsite=primo
Zum Text:
SendSend as email Add to Book BagAdd to Book Bag
Staff View
recordid: proquest868769440
title: Dramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.
format: Article
creator:
  • Kazachkin, Dmitry V
  • Nishimura, Yoshifumi
  • Witek, Henryk A
  • Irle, Stephan
  • Borguet, Eric
subjects:
  • Chemistry
ispartof: Journal of the American Chemical Society, June 1, 2011, Vol.133(21), pp.8191-8198
description: Combined temperature-programmed desorption and IR studies suggest that absorption cross sections of IR-active vibrations of molecules "strongly" bound to single-wall carbon nanotubes (SWCNTs) are reduced at least by a factor of 10. Quantum chemical simulations show that IR intensities of endohedrally encapsulated molecules are dramatically reduced, and identify dielectric screening by highly polarizable SWCNT sidewalls as the origin of such "screening". The observed intensity reduction originates from a sizable cancellation of adsorbate dipole moments by mirror charges dynamically induced on the nanotube sidewalls. For exohedrally adsorbed molecules, the dielectric screening is found to be orientation-dependent with a smaller magnitude for adsorption in groove and interstitial sites. The presented results clearly demonstrate and quantify the screening effect of SWCNTs and unequivocally show that IR spectroscopy cannot be applied in a straightforward manner to the study of peapod systems.
language: eng
source:
identifier: E-ISSN: 1520-5126 ; DOI: 1520-5126 ; DOI: 10.1021/ja108903u
fulltext: no_fulltext
issn:
  • 15205126
  • 1520-5126
url: Link


@attributes
ID1492425572
RANK0.07
NO1
SEARCH_ENGINEprimo_central_multiple_fe
SEARCH_ENGINE_TYPEPrimo Central Search Engine
LOCALfalse
PrimoNMBib
record
control
sourcerecordid868769440
sourceidproquest
recordidTN_proquest868769440
sourcesystemOther
pqid868769440
galeid259342723
display
typearticle
titleDramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.
creatorKazachkin, Dmitry V ; Nishimura, Yoshifumi ; Witek, Henryk A ; Irle, Stephan ; Borguet, Eric
contributorKazachkin, Dmitry V (correspondence author) ; Kazachkin, Dmitry V (record owner)
ispartofJournal of the American Chemical Society, June 1, 2011, Vol.133(21), pp.8191-8198
identifier
languageeng
source
descriptionCombined temperature-programmed desorption and IR studies suggest that absorption cross sections of IR-active vibrations of molecules "strongly" bound to single-wall carbon nanotubes (SWCNTs) are reduced at least by a factor of 10. Quantum chemical simulations show that IR intensities of endohedrally encapsulated molecules are dramatically reduced, and identify dielectric screening by highly polarizable SWCNT sidewalls as the origin of such "screening". The observed intensity reduction originates from a sizable cancellation of adsorbate dipole moments by mirror charges dynamically induced on the nanotube sidewalls. For exohedrally adsorbed molecules, the dielectric screening is found to be orientation-dependent with a smaller magnitude for adsorption in groove and interstitial sites. The presented results clearly demonstrate and quantify the screening effect of SWCNTs and unequivocally show that IR spectroscopy cannot be applied in a straightforward manner to the study of peapod systems.
subjectChemistry;
version3
lds50peer_reviewed
links
openurl$$Topenurl_article
openurlfulltext$$Topenurlfull_article
backlink$$Uhttp://search.proquest.com/docview/868769440/?pq-origsite=primo$$EView_record_in_ProQuest_(subscribers_only)
search
creatorcontrib
0Kazachkin, Dmitry V
1Nishimura, Yoshifumi
2Witek, Henryk A
3Irle, Stephan
4Borguet, Eric
titleDramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.
general
0English
11520-5126
210.1021/ja108903u
3MEDLINE (ProQuest)
4ProQuest Biological Science Collection
5ProQuest Natural Science Collection
6ProQuest SciTech Collection
7Biological Science Database
8Natural Science Collection
9SciTech Premium Collection
10Health Research Premium Collection
11Health Research Premium Collection (Alumni edition)
sourceidproquest
recordidproquest868769440
issn
015205126
11520-5126
rsrctypearticle
creationdate2011
addtitleJournal of the American Chemical Society
searchscope
01007527
11007944
210000004
310000038
410000050
510000120
610000159
710000238
810000253
910000260
1010000270
1110000271
1210000302
13proquest
scope
01007527
11007944
210000004
310000038
410000050
510000120
610000159
710000238
810000253
910000260
1010000270
1110000271
1210000302
13proquest
lsr43
01007527false
11007944false
210000004false
310000038false
410000050false
510000120false
610000159false
710000238false
810000253false
910000260false
1010000270false
1110000271false
1210000302false
contributorKazachkin, Dmitry V
startdate20110601
enddate20110601
citationpf 8191 pt 8198 vol 133 issue 21
lsr30VSR-Enriched:[galeid, description, pqid, subject]
sort
titleDramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.
authorKazachkin, Dmitry V ; Nishimura, Yoshifumi ; Witek, Henryk A ; Irle, Stephan ; Borguet, Eric
creationdate20110601
lso0120110601
facets
frbrgroupid8593687947150940964
frbrtype5
newrecords20181218
languageeng
creationdate2011
collection
0MEDLINE (ProQuest)
1ProQuest Biological Science Collection
2ProQuest Natural Science Collection
3ProQuest SciTech Collection
4Biological Science Database
5Natural Science Collection
6SciTech Premium Collection
7Health Research Premium Collection
8Health Research Premium Collection (Alumni edition)
prefilterarticles
rsrctypearticles
creatorcontrib
0Kazachkin, Dmitry V
1Nishimura, Yoshifumi
2Witek, Henryk A
3Irle, Stephan
4Borguet, Eric
jtitleJournal of the American Chemical Society
toplevelpeer_reviewed
delivery
delcategoryRemote Search Resource
fulltextno_fulltext
addata
aulast
0Kazachkin
1Nishimura
2Witek
3Irle
4Borguet
aufirst
0Dmitry V
1Yoshifumi
2Henryk A
3Stephan
4Eric
au
0Kazachkin, Dmitry V
1Nishimura, Yoshifumi
2Witek, Henryk A
3Irle, Stephan
4Borguet, Eric
addauKazachkin, Dmitry V
atitleDramatic reduction of IR vibrational cross sections of molecules encapsulated in carbon nanotubes.
jtitleJournal of the American Chemical Society
risdate20110601
volume133
issue21
spage8191
epage8198
pages8191-8198
eissn1520-5126
formatjournal
genrearticle
ristypeJOUR
doi10.1021/ja108903u
urlhttp://search.proquest.com/docview/868769440/
date2011-06-01