Journal of Raman Spectroscopy

Cover image for Vol. 42 Issue 12

December 2011

Volume 42, Issue 12

Pages 2049–2182

  1. Review

    1. Top of page
    2. Review
    3. Research Articles
    4. Short Communications
    5. Rapid Communications
    1. Recent advances in linear and nonlinear Raman spectroscopy. Part V (pages 2049–2068)

      Laurence A. Nafie

      Version of Record online: 14 DEC 2011 | DOI: 10.1002/jrs.3115

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      A review is presented on important developments published within the Journal of Raman Spectroscopy (JRS) during 2010. This third overview again highlights advances in the field of research, provides readers of JRS with introductions to developments within the various subfields of Raman spectroscopy and reflects the trends of research of the Raman community.

  2. Research Articles

    1. Top of page
    2. Review
    3. Research Articles
    4. Short Communications
    5. Rapid Communications
    1. Vibrational properties of levulinic acid and furan derivatives: Raman spectroscopy and theoretical calculations (pages 2069–2076)

      Taejin Kim, Rajeev S. Assary, Larry A. Curtiss, Christopher L. Marshall and Peter C. Stair

      Version of Record online: 10 MAY 2011 | DOI: 10.1002/jrs.2951

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      Furan, furan derivatives, and levulinic acid were characterized via Raman spectroscopy and their vibrational wavenumbers were compared with the calculated results using the B3LYP/6-31 + G(2df,p). After using the solvent effects and scaling factor, the discrepancies in wavenumbers reduced to ∼25 cm−1 (2%). An empirical method based on the chemical structure similarities is able to predict the HMF Raman spectrum from the combined furfural and FA spectra.

    2. Characterization of an iron smelting slag from Zimbabwe by Raman microscopy and electron beam analysis (pages 2077–2084)

      Vânia S. F. Muralha, Thilo Rehren and Robin J. H. Clark

      Version of Record online: 30 JUN 2011 | DOI: 10.1002/jrs.2961

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      This pilot study aims to develop a model that allows close identification of the redox conditions in a variety of smelting processes by analysing the free iron oxides. Characterisation by RM and EBA of archaeological iron smelting slag from Northern Zimbabwe reveals free iron oxides, as haematite and magnetite, oxidised forms of magnetite and wüstite, Al3+-substituted magnetite and a solid solution between magnetite and hercynite.

    3. Poly(vinylpyrrolidone)-stabilized silver nanoparticles for strained-silicon surface enhanced Raman spectroscopy (pages 2085–2088)

      Stuart J. Corr, Lisa O'Reilly, Eoghan P. Dillon, Andrew R. Barron and Patrick J. McNally

      Version of Record online: 16 JUN 2011 | DOI: 10.1002/jrs.2967

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      Poly(vinylpyrrolidone)-stabilized silver nanoparticles (NPs) were investigated for strained-silicon SERS using a 488 nm Ar+ micro-Raman excitation source. Strained silicon of thickness 9, 17.5, and 42 nm grown on Si0.8−0.7Ge0.2−0.3 virtual substrates were analyzed. Optimum SERS enhancements were shown for NPs of diameter 80 ± 18 nm.

    4. Substitution and proton doping effect on SrZrO3 behaviour: high-pressure Raman study (pages 2089–2099)

      Aneta Slodczyk, Marie-Hélène Limage, Philippe Colomban, Oumaya Zaafrani, Frédéric Grasset, Johan Loricourt and Béatrice Sala

      Version of Record online: 19 MAY 2011 | DOI: 10.1002/jrs.2968

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      The pressure dependences of the low wavenumber mode widths reveal a rigid structure without any structural modification in the case of pure SrZrO3 and the sequence of pressure-induced structural modifications for both Yb-modified non-protonated and protonated SrZrO3. Perturbations of the host perovskite structure due to the Yb substitution and insertion of protonic species are discussed.

    5. Time-resolved coherent anti-Stokes Raman spectroscopy impulsively excited by supercontinuum (pages 2100–2104)

      Qian Xu, Kebin Shi and Zhiwen Liu

      Version of Record online: 18 MAY 2011 | DOI: 10.1002/jrs.2969

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      Time-resolved CARS impulsively excited by supercontinuum is investigated. We show that it is critical to optimize the temporal overlapping of the constituent solitons of a supercontinuum in order to impulsively excite vibrational modes over a broader frequency range. The cross-correlation frequency resolved optical gating technique is utilized to retrieve the optical response function of molecules under supercontinuum impulsive excitation, and background-free CARS with spectral resolution significantly better than the bandwidth of the probe pulses is achieved.

    6. UV resonance Raman spectroscopy probes the amide II′p band position in short breast milk peptides with antioxidant activity (pages 2105–2111)

      Stahs Pripotnev, Apollinaire Tsopmo, James K. Friel and Anatoli Ianoul

      Version of Record online: 2 MAY 2011 | DOI: 10.1002/jrs.2971

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      UV resonance Raman spectroscopy was used to determine the position of the amide II′ proline band, which is sensitive to content of the cis peptide bond, for a series of short proline-rich antioxidant peptides isolated from human milk. Both antioxidant activity and contents of proline cis bond depend on the relative position of proline and tyrosine residues in the peptide.

    7. Surface-enhanced Raman scattering of 4-aminobenzenethiol on silver: confirmation of the origin of b2-type bands (pages 2112–2118)

      Kwan Kim, Hyang Bong Lee, Dongha Shin, Hyunwoo Ryoo, Ji Won Lee and Kuan Soo Shin

      Version of Record online: 2 MAY 2011 | DOI: 10.1002/jrs.2972

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      In order to resolve the dispute on the origin of the b2-type bands in the surface-enhanced Raman scattering (SERS) of 4-aminobenzenethiol (4-ABT), we have measured its SERS spectra under a variety of conditions. We conclude that the b2-type bands are intrinsic to 4-ABT, appearing in conjunction with the chemical enhancement mechanism in SERS.

    8. Single-crystal Raman spectroscopy of natural finnemanite and comparison with its synthesised analogue (pages 2119–2125)

      Silmarilly Bahfenne, Llew Rintoul, Jörgen Langhof and Ray L. Frost

      Version of Record online: 3 MAY 2011 | DOI: 10.1002/jrs.2973

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      The single-crystal Raman spectra of natural mineral finnemanite Pb5(AsO3)3Cl are presented. Band assignments were made on the basis of band symmetry, experimental band positions from literature, DFT-calculated Raman spectrum and spectral comparison with other ortho-arsenite minerals reinerite, cafarsite and nealite as well as with synthetic lead arsenite compounds Pb2(AsO2)3Cl, Pb2As2O5 and PbAs2O4.

    9. Modified cascade model of resonant Raman scattering: a case study of UV Raman scattering in Zn1−xMnxO thin films (pages 2126–2131)

      Harish Kumar Yadav, R. S. Katiyar and Vinay Gupta

      Version of Record online: 11 MAY 2011 | DOI: 10.1002/jrs.2974

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      Multiphonon resonant Raman scattering in Zn1−xMnxO thin films is investigated to determine the states responsible for the emission of higher order LO lines, under the condition, where the incident photon energy does not differ from the bandgap or exciton energy by more than a few multiples of the LO energy (ħωLO). A modification to the cascade model is suggested to include the trap states as intermediaries for the emission of higher order RRS lines.

    10. Phonons in SiAs: Raman scattering study and DFT calculations (pages 2132–2136)

      Jürgen Kutzner, Jens Kortus, Olf Pätzold, Ulrike Wunderwald and Gert Irmer

      Version of Record online: 19 MAY 2011 | DOI: 10.1002/jrs.2976

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      Raman scattering results on single-crystal silicon monoarsenide (SiAs) are presented. Based on a comparison between Raman measurements and first-principles density functional theory calculations, evidence is found that SiAs will occur in a monoclinic crystal structure. A detailed discussion of the vibrational properties of the monoclinic structure is provided.

    11. Assessment of Raman microscopy coupled with principal component analysis to examine egg yolk–pigment interaction based on the protein C[BOND]H stretching region (3100–2800 cm−1) (pages 2137–2142)

      Julia Romero-Pastor, Carolina Cardell, Eloisa Manzano, África Yebra-Rodríguez and Natalia Navas

      Version of Record online: 19 MAY 2011 | DOI: 10.1002/jrs.2977

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      This work seeks to identify the slight changes in the characteristic C[BOND]H stretching region (3100–2800 cm−1 region) of a protein-based binder and fatty acid esters from egg yolk, which may occur in complex paint samples due to the presence of particular pigments. All samples were analyzed in this region by Raman microscopy coupled with principal component analysis for three color groups (red, white and blue) separately. The effectiveness of applying this methodology for identifying the interaction processes between binders and pigments is demonstrated.

    12. Raman spectroscopy in the diagnosis of the wall painting History of Concepción, Chile (pages 2143–2148)

      T. Aguayo, E. Clavijo, F. Eisner, C. Ossa-Izquierdo and M. M. Campos-Vallette

      Version of Record online: 27 JUN 2011 | DOI: 10.1002/jrs.2978

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      The most relevant chromophores along with additional components coming from chemical deterioration processes of the wall painting Historia de Concepción were analyzed and identified by means of micro-Raman spectroscopy. Spectral information concerning mainly pigments and composition on the surface clearly corresponds to the fresco technique. The pollutants identified suggest that the strong pulverization observed may be due to the successive transformation of calcite into gypsum. Pulverization continues because of the high humidity in Concepción, Chile.

    13. Stray light in low wavenumber Raman spectra and secondary maxima of grating diffraction (pages 2149–2153)

      B. Shuang, C. X. Wang, L. Xia, B. Xu and S. L. Zhang

      Version of Record online: 27 JUN 2011 | DOI: 10.1002/jrs.2990

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      Stray light appearing in the low wavenumber region of Raman spectra was studied. The origin of the stray light is found and verified as the second maxima of the diffraction grating both by theory and experiment.

    14. Raman spectroscopy of dipyrrins: nonresonant, resonant and surface-enhanced cross-sections and enhancement factors (pages 2154–2164)

      Tracey M. McLean, Deidre Cleland, Keith C. Gordon, Shane G. Telfer and Mark R. Waterland

      Version of Record online: 16 NOV 2011 | DOI: 10.1002/jrs.3093

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      With large Raman cross-sections, versatile synthetic chemistry and complete lack of fluorescence, free dipyrrins and their complexes are ideal candidates for Raman spectroscopy but the Raman and Surface Enhanced (Resonance) Raman Spectroscopy (SERRS) of dipyrrins is largely unknown. We have obtained non-resonant, resonant and surface-enhanced Raman spectra of dipyrrins and their complexes and also the corresponding absolute differential Raman cross-sections. The magnitudes of the resonantly enhanced cross-sections are similar to strong SERRS dyes such as Rhodamine 6G and Crystal Violet.

  3. Short Communications

    1. Top of page
    2. Review
    3. Research Articles
    4. Short Communications
    5. Rapid Communications
    1. Probing the paramagnetic interactions between the unpaired electronic spins of carbon atoms and the nuclear spins of hydrogen molecules with Raman spectroscopy (pages 2165–2167)

      Andrea Centrone

      Version of Record online: 30 MAY 2011 | DOI: 10.1002/jrs.2983

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      Raman spectroscopy was used for the first time to probe the paramagnetic interactions occurring between the unpaired electronic spins of carbon materials and the nuclear spins of hydrogen molecules by monitoring the relative population of the H2 rotational states.

    2. Ion–polymer and ion–ion interaction in PEO-based polymer electrolytes having complexing salt LiClO4 and/or ionic liquid, [BMIM][PF6] (pages 2168–2172)

      Sujeet K. Chaurasia, Rajendra K. Singh and S. Chandra

      Version of Record online: 28 JUN 2011 | DOI: 10.1002/jrs.2999

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      Laser Raman technique has been used to study the complexation of polymer PEO with the cations of salt LiClO4/ionic liquid BMIMPF6. The formation of contact ion pairs (Li+· ClOequation image and BMIM+· PFequation image) and cross-contact ion pairs(Li+· PFequation image and BMIM+· ClOequation image) in this polymer electrolyte system is also reported.

    3. Rutherford and Raman – Nobel laureates who had difficult early journeys to success (pages 2173–2178)

      Matthew P. A. Clark and Robin J. H. Clark

      Version of Record online: 27 OCT 2011 | DOI: 10.1002/jrs.3061

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      The early careers of Ernest Rutherford and Chandrasekhara Raman are remarkable; each emerged from improbable backgrounds to win a Nobel Prize and become their country's most famous scientist. Young scientists currently having great difficulty in establishing their careers in science should seek inspiration from careers such as these.

  4. Rapid Communications

    1. Top of page
    2. Review
    3. Research Articles
    4. Short Communications
    5. Rapid Communications
    1. Metal-nanoparticle-coating-induced enhancement and weakening of resonant Raman scattering in ZnO: effect of surface electric field (pages 2179–2182)

      H. F. Liu, A. Huang, S. Tripathy and S. J. Chua

      Version of Record online: 1 JUL 2011 | DOI: 10.1002/jrs.2991

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      Effects of metal nanoparticles coating on the resonant Raman scattering of ZnO thin films with various crystallinity are studied. The LO phonon scatterings as well as their high-order overtones are enhanced by Ag nanoparticles coating while weakened by Ti nanoparticles coating. The origins are investigated and associated with the presence and modification of surface electric-field of ZnO.

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