scholarly journals Resonance Raman spectroscopy in one-dimensional carbon materials

2006 ◽  
Vol 78 (3) ◽  
pp. 423-439 ◽  
Author(s):  
Mildred S. Dresselhaus ◽  
Ado Jorio ◽  
Marcos A. Pimenta
Keyword(s):  
Raman Spectroscopy ◽  
Materials Science ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
One Dimensional ◽  
The Past ◽  
Carbon Chains ◽  
History Of ◽  
Raman Study ◽  
Double Wall

Brazil has played an important role in the development and use of resonance Raman spectroscopy as a powerful characterization tool for materials science. Here we present a short history of Raman scattering research in Brazil, highlighting the important contributions to the field coming from Brazilian researchers in the past. Next we discuss recent and important contributions where Brazil has become a worldwide leader, that is on the physics of quasi-one dimensional carbon nanotubes. We conclude this article by presenting results from a very recent resonance Raman study of exciting new materials, that are strictly one-dimensional carbon chains formed by the heat treatment of very pure double-wall carbon nanotube samples.

Ion implantation effect on Resonance Raman spectroscopy of double-wall carbon nanotubes

2010 ◽  
Author(s):  
E. C. Moreira ◽  
G. D. Saraiva ◽  
A. G. Souza Filho ◽  
G. Braunstein ◽  
H. Muramatsu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Ion Implantation ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Double Wall

Resonance Raman Study of the Binding of the Anticancer Drug Amsacrine to DNA

1994 ◽  
Vol 48 (7) ◽  
pp. 822-826 ◽  
Author(s):  
Catherine A. Butler ◽  
Ralph P. Cooney ◽  
William A. Denny
Keyword(s):  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Binding Mode ◽  
Resonance Raman Spectrum ◽  
Normal Coordinate ◽  
Visible Absorption ◽  
Calf Thymus ◽  
Raman Study ◽  
Uv Visible

The binding of amsacrine [4′-(9-acridinylamino)methanesulfon- m-anisidide] to calf thymus DNA was studied by UV-visible and resonance Raman spectroscopy. A shift of the UV-visible absorption band of amsacrine at 434 to 442 nm together with a decrease in the intensity of this band is observed upon amsacrine-DNA binding. The resonance Raman spectrum of DNA-bound amsacrine shows a general slight decrease in intensity relative to the spectrum of the free species. The significant decrease in intensity of the bands at 1165, 1265, and 1380 cm−1 upon binding to DNA is attributed to the formation of a single amsacrine-DNA species. The assignment of these bands (1165, 1265, and 1380 cm−1), which was based upon a previous normal coordinate analysis (NCA) and molecular neglect of diatomic overlap (MNDO) calculation, and the observed lack of shift in the band positions upon binding are consistent with intercalation being the major binding mode of amsacrine, as inferred previously by other techniques.

scholarly journals Resonance Raman spectroscopy in Si and C ion-implanted double-wall carbon nanotubes

2009 ◽  
Vol 80 (15) ◽  
Author(s):  
G. D. Saraiva ◽  
A. G. Souza Filho ◽  
G. Braunstein ◽  
E. B. Barros ◽  
J. Mendes Filho ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Double Wall ◽  
Ion Implanted

scholarly journals Resonance Raman study of the J-type aggregation process of a water soluble perylene bisimide

2019 ◽  
Vol 21 (33) ◽  
pp. 18300-18309
Author(s):  
Elisa Alloa ◽  
Vincenzo Grande ◽  
Rishat Dilmurat ◽  
David Beljonne ◽  
Frank Würthner ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Water Soluble ◽  
Aggregation Process ◽  
Perylene Bisimide ◽  
Raman Study ◽  
Molecular Picture

Resonance Raman spectroscopy offers a detailed molecular picture of the conformation of a water-soluble PBI in a supramolecular J aggregate.

scholarly journals Mesoporous Silica Functionalized by Nickel-Cyclam Molecules: Preparation and Resonance Raman Study

2012 ◽  
Vol 35 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Magdalena Laskowska ◽  
Łukasz Laskowski ◽  
Kazimierz Dzilinski
Keyword(s):  
Raman Spectroscopy ◽  
Mesoporous Silica ◽  
Raman Spectra ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Nickel Ions ◽  
Methods Of Synthesis ◽  
Raman Study ◽  
Resonance Raman Spectra ◽  
And Shifts

Abstract Mesoporous silica SBA-15 functionalized by (1,4,8,11-tetraazacyclotetradecane) cyclam groups containing nickel ions (Ni-cyclam) was synthesized by two different approaches, and investigated by resonance Raman spectroscopy. Vibrational features of organometallic moleculess are analyzed for (Ni-cyclam) groups grafted in the silica pores. An assignment of bands in resonance Raman spectra was done to monitor the structure and properties of the mesoporous silica material with regard to the methods of synthesis used in this study. It was shown, that Raman scattering can be useful for probing of functionalization's efficiency of mesoporous silica. On the base of the resonance investigation: Raman and EPR spectroscopy, distribution of the functional groups inside pores can be determined. In the present article the Raman spectroscopy is treat as a complementary research to EPR investigation. It was shown that a clustering of the active groups alter significantly the resonance Raman spectra through broadening and shifts of the corresponding bands in comparison with separated molecules. Results obtained from the analysis of the resonance Raman spectra indicate significant differences between the samples prepared by the two procedures. The discussion of the Raman results was referred to EPR results, and on the base of this authors concluded about correct achievement of the functionalization.

scholarly journals Resonance Raman study of linear carbon chains formed by the heat treatment of double-wall carbon nanotubes

2006 ◽  
Vol 73 (19) ◽  
Author(s):  
C. Fantini ◽  
E. Cruz ◽  
A. Jorio ◽  
M. Terrones ◽  
H. Terrones ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Carbon Nanotubes ◽  
Resonance Raman ◽  
Carbon Chains ◽  
Raman Study ◽  
Double Wall
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