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  • 11
    Electronic Resource
    Electronic Resource
    Applications of Raman spectroscopy to the study of polymers and polymerization processes (1993)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 24 (1993), S. 475-483 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The application of Raman spectroscopy to polymers and polymerization processes is surveyed and the advent of recent advances in instrumental techniques to polymer analysis is highlighted. Some of the problems of the more widely-used infrared spectroscopic methods, for example in microstructural analysis of polydienes and copolymers, are discussed and the advantages of the Raman spectroscopic technique are explained. The use of near-infrared excitation and Fourier-transform Raman instrumentation for process monitoring and polymer composite studies is discussed. Raman microscopic and waveguide spectroscopic studies of small samples and polymer coatings on substrates are considered. Other applications are mentioned in the areas of polymer orientation, surface-enhanced Raman scattering, conducting polymers, biopolymers and time-resolved studies.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250240803
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  • 12
    Electronic Resource
    Electronic Resource
    Preparation and vibrational spectroscopic characterization of copolymers of 2,3-dimethylbutadiene and methyl methacrylate (1993)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 24 (1993), S. 495-500 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The preparation and vibrational spectroscopic characterization of the hitherto unreported products of the copolymerization of 2,3-dimethylbutadiene and methyl methacrylate are presented. The polymers were prepared by free radical polymerization using α,α′-azobisisobutyronitrile as the initiator. Raman and Fourier transform infrared spectroscopic information on the 2,3-dimethylbutadiene-methyl methacrylate copolymer is presented for a range of copolymers differing in the 2,3-dimethylbutadiene to methyl methacrylate ratio. Quantitative information of the microstructure of the polymer and copolymer using the C=C stretching vibrations is provided by Raman spectroscopy. Evidence is presented for the splitting of the C=O stretching vibration, ascribed to aggregated syndiotactic and unaggregated syndio- and isotactic poly(methyl methacrylate) at 1734 and 1724 cm-1, respectively.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250240805
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  • 13
    Electronic Resource
    Electronic Resource
    An approach to stone and fresco lichen biodeterioration through Fourier transform Raman microscopic investigation of thallus - substratum encrustations (1994)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 25 (1994), S. 99-103 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Fourier transform Raman spectra of thallus-substratum interfaces of Xanthoria parietina growing in situ on sandstone and gypsum were obtained for the first time. The presence of small amounts of calcium oxalate in thallus-substratum interfaces was confirmed spectroscopically and evidence for biodeterioration via lichen metabolic by-products was also noted. Although the oxalate determined spectroscopically was in good agreement with the results from thermogravimetric measurements there was also spectroscopic evidence for incorporation of stone particles into the lichen encrustation. Comparisons are made with Raman spectroscopic studies of the thalli of the high oxalate-producing lichen Dirina massiliensis forma sorediata. The Raman spectra Ochrolechia parella growing in association with Xanthoria parietina on maritime sandstone were also recorded and the spatial discrimination of the techniques for these high and low oxalate-producing lichens was demonstrated.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250250114
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  • 14
    Electronic Resource
    Electronic Resource
    Fourier transform Raman spectroscopy of bacterial cell walls (1994)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 25 (1994), S. 673-677 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Fourier transform Raman spectra were obtained from viable colonies of bacteria. Despite the highly coloured nature of the samples, the spectra were of sufficient quality to allow comprehensive assignments consistent with the vibrational modes. The spectra showed no clear evidence for the presence of phospholipids, indicating that penetration of the exciting infrared radiation was limited to the outermost components of the bacterial cell walls. The data describing the molecular and conformational state of the bacterial cell wall may aid in probing the modes of action of a wide range of antimicrobial agent.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250250730
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  • 15
    Electronic Resource
    Electronic Resource
    The vibration-rotation Raman spectrum of P4 (1981)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 11 (1981), S. 346-348 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The vibration-rotation Raman spectrum of the ν2 fundamental band of P4 has been recorded photographically using a spectrograph with a reciprocal linear dispersion of 1.36 cm-1 mm-1. Analysis of the spectrum gave the following values for the vibration and rotation constants and the P—P bond length:
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250110511
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  • 16
    Electronic Resource
    Electronic Resource
    Pure rotational and vibration-rotational Raman spectra of 1H2, 1H2H and 2H2 (1986)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 17 (1986), S. 129-131 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The pure rotational (S-branch) and vibration-rotational (Q-branch) Raman spectra of 1H2, 1H2H and 2H2 have been recorded photographically and analysed with a precision greater than that achieved in earlier investigations to produce values of the bond lengths. From a combination of these results and those obtained from the species 2H3H, 1H3H and 3H2 a mean value of the bond length in the equilibrium configuration of re = 74.151±0.001 pm has been obtained.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250170126
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  • 17
    Electronic Resource
    Electronic Resource
    The pure rotation Raman spectrum of 17O18O (1986)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 17 (1986), S. 431-432 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The pure rotation Raman spectrum of 17O18O has been recorded photographically using laser excitation and a spectrograph with a reciprocal linear dispersion of 1.4 cm-1 mm-1 at 488.0 nm. The following B0, D0 and r0 values were obtained; B0=1.31546±0.00002 cm-1, 106D0=3.50±0.05 cm-1 and r0=121.072±0.002 pm.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250170509
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  • 18
    Electronic Resource
    Electronic Resource
    Line widths in the pure rotational Raman spectra of nitrogen, oxygen and hydrogen broadened by foreign gases (1988)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 19 (1988), S. 457-461 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Broadening coefficients, σp, have been determined for the pure rotational Raman lines of nitrogen and oxygen, perturbed by hydrogen, helium and methane, and of hydrogen broadened by helium, argon, nitrogen and carbon monoxide, over the pressure range 2-100 bar with a host gas partial pressure of 1 bar. The results are summarized below:The broadening coefficients are discussed in relation to the dipole, quadrupole and octopole moments and the polarizabilities of the perturbing species.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250190705
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  • 19
    Electronic Resource
    Electronic Resource
    Linewidths in the pure rotational Raman spectra of hydrogen chloride and carbon monoxide and of nitrogen and carbon monoxide perturbed by hydrogen chloride (1990)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 21 (1990), S. 65-69 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Pressure-broadening coefficients, σp, have been determined for self-broadening of pure rotational Raman lines of carbon monoxide and for pure rotational Raman lines of hydrogen chloride, and carbon monoxide and nitrogen perturbed by hydrogen chloride at 293 K. The results are discussed and compared with calculated and experimental σp values in the literature.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250210112
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  • 20
    Electronic Resource
    Electronic Resource
    Vibrational Raman spectroscopic studies of calcium oxalate monohydrate and dihydrate in lichen encrustations on renaissance frescoes (1992)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 23 (1992), S. 185-189 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Vibrational Raman spectroscopic studies of the monohydrate and dihydrate of calcium oxalate were undertaken in order to characterize these compounds in lichen encrustations which cause biodeterioration of Renaissance frescoes. Spectroscopic data from the CaC2O4 · D2O species provided an aid to the vibrational assignments and indicated that amendment to some literature assignments was necessary. Application of the results to samples of the lichen Dirina massiliensis forma sorediata encrusting certain Italian Renaissance frescoes demonstrated that it is possible to identify the monohydrate and dihydrate of calcium oxalate at a microscopic level.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250230310
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