Publication costs assisted by Lebanon Valley CollegeThe hydrogen bonding of phenol, guaiacol, and catechol to the electron pair donors, dimethyl sulfoxide, tetrahydrofuran, and di-nbutyl sulfide, was studied in CCU solution at various temperatures by monitoring the hydroxyl stretching frequency at 3 µ. Only dimethyl sulfoxide was found to disrupt the intramolecular hydrogen bond of guaiacol. The intramolecular bond strength for guaiacol was found to be -3.3 kcal mol-1. All donors disrupt the intramolecular bond in catechol with consequent formation of hydrogen bonded complexes containing one and two donor molecules. The frequency shifts and enthalpy changes for the formation of the monodonor complex with catechol are larger than the corresponding properties for the phenol complex and reflect the influence of the intramolecular hydrogen bond on intermolecular hydrogen bonding.

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Quick, Edward Edwards, "The interaction and reactivity of nitric oxide and carbon monoxide on ruthenium surfaces " (1979 INFORMATION TO USERSThis was produced from a copy of a document sent to us for microfilming. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the material submitted.The following explanation of techniques is provided to help you understand markings or notations which may appear on this reproduction. 1. The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure you of complete continuity. When an image on the film is obliterated with a round black mark it is anindication that the film inspector noticed either blurred copy because of movement during exposure, or duplicate copy. Unless we meant to delete copyrighted materials that should not have been filmed, you will find a good image of the page in the adjacent frame,.3. When a map, drawing or chart, etc., is part of the material being photo graphed the photographer has followed a definite method in "sectioning" the material. It is customary to begin filming at the upper left hand comer of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued agaun-beginning below the first row and continuing on until complete.

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