Dana W. Mayo

Course Notes on the Interpretation of Infrared and Raman Spectra: Mayo/Raman Spectra

Foreword.Preface.1. Introduction (Foil A. Miller).2. Characteristic Frequencies of Alkanes (Dana W. Mayo).3. Characteristic Frequencies of Alkenes (Olefins) (Foil A. Miller).4. Characteristic Frequencies of Molecules with Triple Bonds and Cumulated Double Bonds (Robert W. Hannah and Foil A. Miller).5. Characteristic Frequencies of Aromatic Compounds (Group Frequencies of Arenes) (Dana W. Mayo).INTRODUCTION TO EXERCISES.EXERCISE SECTION I.6. Spectra of X-H Systems (With Emphasis on O-H and N-H Groups) (Foil A. Miller).7. Spectra of Carbonyl Compounds of All Kinds (Factors Affecting Carbonyl Group Frequencies) (Dana W. Mayo).8. Amides, Carboxylate Ion, and C-O Single Bonds (Foil A. Miller).9. Groups Containing N=O Bonds, or Si, P, S, or Halogen Atoms (Robert W. Hannah).EXERCISE SECTION II.10. Infrared Spectra of Polymers: Introduction (Robert W. Hannah and Dana W. Mayo).11. Infrared Spectra of Inorganic Materials (Foil A. Miller).12. Survey of Infrared and Raman Group Frequencies (Dana W. Mayo).EXERCISE SECTION III.13. Sample-Handling Techniques (Robert W. Hannah).14. Infrared Spectra of Mixtures (Robert W. Hannah).Answer to Chapter 5 Figure 5-30.Answers to Exercises.Bibliography.Index.

Reduction in carbon flux in Mya arenaria caused by a spill of No. 6 fuel oil

Rates of respiration, assimilation and filtration have been determined on a monthly basis for two populations of Mya arenaria in Casco Bay, Maine (USA), one of which was heavily oiled by a spill of No. 6 fuel oil. Monthly estimates of carbon flow have been calculated from these data. The same general trends were seen in each population; small negative carbon flow in winter, large negative carbon flow during the spring; large positive carbon flow during summer. However, the oiled population gained carbon at only 50% of the rate seen in the unoiled population. This difference results from the uptake of hydrocarbons by the oiled population.

HYDROCARBON DISTRIBUTION AND WEATHERING CHARACTERISTICS AT A TROPICAL OIL SPILL SITE

ABSTRACT A study was performed on the state of an oil spill site on the southwest coast of Puerto Rico. The location of the study was Bahia Sucia, the site of the Zoe Colocotroni spill of 17 March,...

Application of Laser-Excited Raman Spectroscopy to Organic Chemistry. IV. A Skeletal Frequency Correlation for Pinane-Type Molecules

An examination of 13 pinanes indicates that the pinane ring system can be characterized by a pattern of seven Raman bands in the spectral region between 1100 and 350 cm−1.

Application of Laser-Excited Raman Spectroscopy to Organic Chemistry I. Raman Spectra of Some Acyclic Monoterpenes

Laser-Raman spectra of 12 acyclic terpenoids has been recorded. Assignments were made for stretching mode vibrations of carbon-carbon double bonds by comparison with infrared spectra. The results of intensity and depolarization studies are discussed.

Application of Laser-Excited Raman Spectroscopy to Organic Chemistry: V. The Ethylene Methyl Group

The intensity ratio of the methyl symmetric deformation mode (ca. 1375 cm−1) and a band at ca. 1440 cm−1 can be employed empirically to determine the presence of methyl groups directly attached to ethylenic carbon atoms. Spectra of approximately 70 di- and trisubstituted acyclic and cyclic compounds containing ethylene methyls were examined. A good correlation was obtained between the number of methyl groups and the intensity ratios.

The Application of Laser-Excited Raman Spectroscopy to Organic Chemistry VI. A Characteristic Raman Group Frequency for the Thiomethyl Group

In an earlier investigation of the infrared and Raman spectra of methyl sulfide and methyl disulfide, Sheppard assigned a series of bands in the 700 cm−1 region to various C-S stretching vibrations. These assignments have received further support by the work of Hayashi, Crowder, and the present authors.