236 research outputs found
INFRARED SPECTRA OF GUEST MOLECULES IN CRYSTALLINE CLATHRATE HYDRATE FILMS
No full text J. E. Bertie and J. P. Devlin, J. Chem. Phys. 78. 6340 (1983). H. H. Richardson, P. J. Wooldridge and J. P. Devlin, J. Chem. Phys., 83, 4387 (1985)Author Institution: Department of Chemistry, Oklahoma State UniversityThe guest molecules in a clathrate hydrate are isolated in well-defined cages. Such systems were difficult to study spectroscopically prior to the demonstration that crystaline films of the clathrate hydrates of polar molecules can be readily deposited from the vapor . Recently, as part of a study of the mechanism of the growth of ice-like crystals at low temperatures, infrared spectra of several caged molecules have been measured. The spectra are marked by evidence of dynamical coupling between neighbour guest molecules, Evans holes (i.e., Fano antiresonances) caused by the interaction of guest and host vibrational states, and sharp variations with temperature that reflect the orientational dynamics of the engaged molecules
Cancer Treatment Side Effects: A Meta-analysis of the Relationship Between Response Expectancies and Experience
No full textLink to a related website: http://www.jpsmjournal.com/article/S0885392417301860/pdf, Open Access via UnpaywallAbstract not availableElise J. Devlin, Linley A. Denson and Hayley S. Whitfor
The Promotion Exams
No full text Mr. Devlin is author of Police Procedure, Administration and Organization </jats:p
The Interaction of HCl and Crystalline Ice Clusters at Cryogenic Temperatures: Evidence of the Molecular Complex
No full text1. Lance Delzeit, Brad Rowland, and J. Paul Devlin; J. Phys. Chem. 97 10312 (1993). 2. B. S. Ault and G. C. Pimentel; J. Phys. Chem. 77 57 (1973). 3. A. Schriver, et. al.; J. Phys. Chem. 87 2095 (1977). 4. G. Kroes and D. C. Clary; J. Phys. Chem. 96 7079 (1992). 5. Brad Rowland, Mark Fisher, and J. Paul Devlin; J. Chem. Phys. 95 1378 (1991).Author Institution: Oklahoma State University, Stillwater, OK 74078The addition of HCl to the surface of crystalline ice clusters at cryogenic temperatures produces spectroscopic changes which can be related to the formation of the hydronium ion and the HCl acting as a molecular adsorbate. The hydronium ion is identified from its IR active modes below . Evidence for the HCl acting as a molecular adsorbate is its effect on the dangling-hydrogen (d-H) mode and the appearance of a band. Analogous spectra for with the and the show two bands relative to the one band in the region due to the interaction. The single band in the HCl system is attributed to the near overlap of the bands due to the molecular and ionic interaction of the HCl and . Reference to matrix and computational will show the plausibility of the presence of the molecular complex. Shifting of the d-H band is a common effect for molecularly adsorbed species on the surface of The shifting of the d-H to a position yet unobserved for common adsorbates gives strong evidence of the HCl acting as a molecular adsorbate
CRYSTAL TO GLASS TRANSFORMATIONS IN SIMPLE SALT SYSTEMS
No full textG. Pollard, N. Smyrl, and J. P. Devlin, J. Phys. Chem. 76, 1826 (1972).Author Institution: Department of Chemistry, Oklahoma State UniversityIt has been shown that the glass phase of many simple salts (nitrates, chlorates, etc.) can be formed by condensing the molten salt vapors at low Admission of proportionate quantities of water vapor during the deposition of vapors permits formation of glassy solutions which crystallize at , forming a crystalline hydrate. The warming of the crystal hydrate in vacuo results in a loss of water at with the formation of the anhydrous glass, which eventually crystallizes to the stable anhydrous salt at . Spectra that are representative of the phases involved, and which provide evidence for the unusual crystal-to-glass transformation will be discussed
T-L SPLITTINGS FROM POLARIZED ATR SPECTRA OF UNIAXIAL CRYSTALS
No full textR. P. J. Cooney, C. Thayer, P. C. Li, and J. P. Devlin, J. Chem. Phys. 51, 302 (1969).""Author Institution: Chemistry Department, Oklahoma State University; Department of Chemistry, Oregon State UniversityOriented films of the trigonal alkali metal nitrates, which behave effectively as single crystals, can be grown in optical contact with silicon and Irtran 6 atr elements from the corresponding pure melts. Contrary to earlier spectra from such crystals are not strongly influenced by crystal distortion at the interface. Rather the unusual experimental curves, typified by a nearly complete lack of TE and TM band overlap for the mode of (II), have been found to be predictable using optical parameters generated from a damped oscillator model. Substitution of the empirically calibrated optical constants into Fresnel’s equations for the case in point (unique crystal axis perpendicular to the sample-element interface) yields nearly quantitative agreement with the experimental curves
The Promotion Exams
No full text This is the fourth of a series of articles of special interest to candidates for the Promotion Exams. The articles all deal with aspects of police administration and organization, which is one of the subjects in Part II of the syllabus, and of those sections of Part I of the syllabus which deal with police procedure. Mr. Devlin is Author of Police Procedure, Administration and Organization </jats:p
Procedure, Administration and Organization
No full text This is the first of a series of articles of special interest to candidates for the Promotion Exams. The articles all deal with aspects of police administration and organization, which is one of the subjects in Part II of the syllabus, and of those sections of Part I of the syllabus which deal with police procedure. Mr. Devlin is author of Police Procedure, Administration and Organization. </jats:p
The Promotion Exams
No full text This is the fifth of a series of articles of special interest to candidates for the Promotion Exams. The articles all deal with aspects of police administration and organization, which is one of the subjects in Part II of the syllabus, and of those sections of Part I of the syllabus which deal with police procedure. Mr. Devlin is Author of Police Procedure, Administration and Organization </jats:p
The Promotion Exams
No full text This is the third of a series of articles of special interest to candidates for the Promotion Exams. The articles all deal with aspects of police administration and organization, which is one of the subjects in Part II of the syllabus, and of those sections of Part I of the syllabus which deal with police procedure. Mr. Devlin is Author of Police Procedure, Administration and Organization </jats:p
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