+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn

+ Translate
+ Recently Requested

Identifying sp-sp2 carbon materials by Raman and infrared spectroscopies



Identifying sp-sp2 carbon materials by Raman and infrared spectroscopies



Physical Chemistry Chemical Physics 16(23): 11303-9



Two-dimensional (2D) materials composed of sp and sp(2) carbon atoms (e.g., graphyne and graphdiyne) show many interesting properties. These materials can be constructed through alkyne homocoupling; however, the occurrence of various side reactions increases the difficulty of their synthesis and structural characterization. Here, we investigate the thermodynamic properties and vibrational spectra of several aryl-alkynes. Both homocoupling and side reactions are found to occur spontaneously at room temperature in terms of thermodynamics. The calculated Raman spectra of the homocoupling products show regular changes with increasing polymerization degree. By rationalizing the vibrational modes of various oligomers, the Raman spectrum of a 2D sp-sp(2) carbon sheet is predicted; it exhibits three sharp peaks at 2241, 1560, and 1444 cm(-1). Although the target and byproducts display similar vibrational modes, a combination of Raman and infrared spectroscopies can be used to differentiate them. The theoretical results are then used to analyze the structure of a synthesized sample and provide useful information.

(PDF emailed within 0-6 h: $19.90)

Accession: 053676478

Download citation: RISBibTeXText

PMID: 24789090

DOI: 10.1039/c4cp00539b


Related references

Rotational dynamics of solvated carbon dioxide studied by infrared, Raman, and time-resolved infrared spectroscopies and a molecular dynamics simulation. Journal of Chemical Physics 136(1): 014508-014508, 2012

Simulating two-dimensional infrared-Raman and Raman spectroscopies for intermolecular and intramolecular modes of liquid water. Journal of Chemical Physics 144(7): 074201-074201, 2016

Nondestructive analysis of foods by optical spectroscopy: comparison among near-infrared, mid-infrared, and Raman spectroscopies. Nippon Shokuhin Kogyo Gakkaishi = Journal of the Japanese Society for Food Science and Technology 45(11): 703-709, 1998

High-throughput prediction of eucalypt lignin syringyl/guaiacyl content using multivariate analysis: a comparison between mid-infrared, near-infrared, and Raman spectroscopies for model development. Biotechnology for Biofuels 7(): 93-93, 2014

A comparison of mid-infrared and Raman spectroscopies for the authentication of edible oils. Journal Of The American Oil Chemists' Society. 75(8): 987-992,., 1998

YMn2Hx and RMn(2-y)Fe(y)H6 (R = Y, Er) studied by Raman, infrared and inelastic neutron scattering spectroscopies. Faraday Discussions 151: 307-14; Discussion 385-97, 2011

Rapid detection of fat adulteration in bakery products using Raman and near-infrared spectroscopies. European Food Research and Technology 237(5): 703-710, 2013

Phonons in CuGeO3 studied using polarized far-infrared and Raman-scattering spectroscopies. Physical Review. B, Condensed Matter 52(6): 4185-4190, 1995

Study of the structure of N-acyldipalmitoylphosphatidylethanolamines in aqueous dispersion by infrared and Raman spectroscopies. Biochemistry 29(19): 4592-4599, 1990

Examination of nanoparticle inactivation of Campylobacter jejuni biofilms using infrared and Raman spectroscopies. Journal of Applied Microbiology 113(4): 952-963, 2013

In situ high-pressure study of sodium amide by Raman and infrared spectroscopies. Journal of Physical Chemistry. B 115(1): 7-13, 2010

Analytical process for microprobing the crystals in a thin section; Focused on Raman and infrared absorption spectroscopies. Annual Report Institute of Geoscience, University of Tsukuba ( 17): 85-92, 1991

Staging and interlayer interaction in the misfit-layer compounds (RS)nNbS2 (R=La,Ce; n=0.6,1.2) studied by Raman and infrared spectroscopies. Physical Review. B, Condensed Matter 50(16): 12033-12043, 1994

Infrared and Raman vibrational spectroscopies reveal the palette of frescos found in the medieval monastery of Karaach Teke. Annali di Chimica 97(7): 491-503, 2007