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  • Books
  • Articles  (29)
  • Analytical Chemistry and Spectroscopy  (29)
  • 1985-1989  (12)
  • 1980-1984  (17)
  • 1
    Electronic Resource
    Electronic Resource
    Reversal of order of chemical shifts. Differential solvent effects in the hydrogen shifts of toluene, m-xylene and o-xylene as determined by 320 MHz tritium NMR spectroscopy (1984)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 22 (1984), S. 665-667 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chemical shifts for the aromatic tritons of toluene decrease in the order meta〉para〉ortho for pure toluene, but in the order meta〉ortho〉para for dilute solutions of toluene in carbon tetrachloride, chloroform, cyclohexane and dimethyl sulphoxide; m-xylene shifts are 5〉4,6〉2 in the pure state and 5〉2〉4,6 in carbon tetrachloride and dimethyl sulphoxide; o-xylene shifts are 4,5〉3,6 in the pure state and reversed in carbon tetrachloride.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270221014
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  • 2
    Electronic Resource
    Electronic Resource
    Two-dimensional NMR study of ganwuweizic acid (1989)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 27 (1989), S. 998-1001 
    Details
    ISSN: 0749-1581
    Keywords: Two-dimensional ; NMR ; Chemical shift ; Configuration ; Conformation ; Ganwuweizic acid ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several two-dimensional NMR techniques were applied to assign completely the 1H and 13C chemical shifts and to study the configuration and conformation of a new triterpenoid, 3-keto-9,10,19-cyclopropyllanost-24-en-26-oic acid (ganwuweizic acid). Some 13C NMR signals previously reported for the triterpenoid skeleton were corrected.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260271018
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  • 3
    Electronic Resource
    Electronic Resource
    Use of two-dimensional NMR to assign the protons and carbons in cephalotaxine (1988)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 26 (1988), S. 1036-1037 
    Details
    ISSN: 0749-1581
    Keywords: Cephalotaxine ; 2D NMR ; 13C ; 1H assignments ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Prton and 13C chemical shift assignments have been made for naturally occurring cephalotaxine. The assignments of two carbons are reversed from those in the liteature. The chemical shifts and configurations of the pyrrolidine protons, aminomethylene protons and benzylic protons in cephalotaxine have been determined by the application of several 2D NMR techniques.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260261118
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  • 4
    Electronic Resource
    Electronic Resource
    A set of alkyl substituent constants for correlating chemical shifts of a variety of nuclei (1986)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 24 (1986), S. 816-820 
    Details
    ISSN: 0749-1581
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A set of substituent constants for alkyl groups has been calculated and shown to be useful in the correlations of chemical shifts of atoms that have a directly bonded alkyl group(s). The correlation equation used is δ(X) = mσn + b, where δ(X) is the chemical shift of atom.X, δ. is the alkyl substituent constant and m and b are constants for a given series of compounds. Forty-two series of compounds, consisting of thirteen different X nuclei (13C, 14N, 15N, 17O, 19F, 29Si, 31P, 35CI, 75As, 77Se, 113Cd, 125Te, 199Hg) have been correlated.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260240916
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  • 5
    Electronic Resource
    Electronic Resource
    The Raman and infrared spectra of the dicyanoiodate (I) ion (1980)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 9 (1980), S. 1-4 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The interaction of iodine cyanide and cyanide in aqueous solution has been reinvestigated and it has been confirmed that a complex cyanide ion, the dicyanoiodate(I) ion [I(CN)2]- is formed. This ion has been isolated in the solid state for the first time, as its tetraphenylarsonium, tetraphenylphosphonium and caesium salts. Infrared and Raman spectroscopic studies of these salts are reported. These spectra are fully consistent with a linear centrosymmetric (D∞h) structure for the [I(CN)2]-ion. Assignments are made for six of the seven fundamentals of the [I(CN)2]-ion in the caesium salt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250090103
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  • 6
    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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  • 7
    Electronic Resource
    Electronic Resource
    Effet de la Temperature sur les Modes Externes de Vibration du Monocristal. La2(SO4)3·9(H,D)2O (1982)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 12 (1982), S. 152-156 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The polarized Raman spectra in the region 0-400 cm-1 of oriented single crystals of La2(SO4)3.9H2O and La2(SO4)3. 9D2O have been recorded between 14 and 297 K. The behaviour of the external modes is analysed in order to elucidate the role of the hydrogen-bonds and the lanthanum-oxygen interactions in the order-disorder transition observed at approximately 170 K. Large changes in the shape and intensities of the external bands with temperature (not detected in the region of internal vibration of the spectrum) have been observed.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250120213
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  • 8
    Electronic Resource
    Electronic Resource
    Editorial note (1982)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 12 (1982), S. iii 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250120320
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  • 9
    Electronic Resource
    Electronic Resource
    Hyper Rayleigh and hyper Raman scattering from ammonium chloride and ammonium bromide (1985)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 16 (1985), S. 398-406 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The hyper Rayleigh and hyper Raman (0-1600 cm-1 wavenumber shift) spectra of oriented single crystals of ammonium chloride and ammonium bromide are reported. It is demonstrated that hyper Rayleigh scattering is a very sensitive measure of the presence of a centre of symmetry within a crystal structure and this property is used to investigate the residual ordering within an ammonium chloride crystal at 55 K above the order-disorder phase transition. The hyper Raman wavenumber shifts associated with the transverse (TO) and longitudinal (LO) components of the optic mode, the librational mode which is infrared and Raman inactive, and the H-N-H internal mode were observed for both crystals. A basis for the interpretation of the relative hyper Raman intensities of the LO and TO modes is provided by an extension of the Poulet treatment of the relative intensities in the Raman spectrum.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250160608
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  • 10
    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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