Activity Listings
- Freshman Chemistry Lecture - The Chemistry of Explosives. [Filed under LP Biographical: Academia: Box 1.013, Folder 13.4]
- Letter from Irvin Stewart, Executive Secretary, Office of Scientific Research and Development, to E. C. Barrett, Comptroller, CIT. RE: Would like this letter to be considered informal authorization to proceed on the extension of money and time. [Filed under LP Science: Scientific War Work - Materials re: Oxypolygelatin, 1941-1945, 1951-1952, 1972-1974: Box #13.004 Folder #4.1]
- Letter from LP to Dr. Leonor Michaelis, Rockefeller Institute for Medical Research. [Letters from Michaelis to LP May 28, 1943, June 15, 1943] [Filed under LP correspondence: Box #246.9, file:(Michaelis, Leonor)]
June 3, 1943
Dr. L. Michaelis
Rockefeller Institute for Medical Research
66th Street and York Avenue
New York, New York
Dear Dr. Michaelis:
I am very much interested to learn that you could not verify the work of Wagner and Grunewald, and believe now that quinhydrone does not exist in solution.
I am not sure that I have mentioned it in earlier letters, but I may say now that I would not think that the methyl groups in duroquinone would interfere with a plane-to-plane structure, since the diameter of a methyl group is just about equal to the thickness of a benzene ring. On the other hand, if it be assumed that in quinhydrone the O-H-0 bond is coplanar with the ring, about 2.6 Å long, and at an angle with the 0-0 bond of about 120º (the angle may well be less), the calculated distance from the oxygen of one molecule to an ortho-methyl group is 2.5 Å, and that to an ortho-hydrogen somewhat larger, about 2.7 Å. The sum of van der Waals' radii for oxygen and methyl is about 3.5 Å and for oxygen and hydrogen about 2.5; accordingly we see that duroquinone would not be expected to form a quinhydrone, whereas ordinary quinhydrone should be stable, there being no steric- hindrance.
With best regards, I am
Sincerely yours,
Linus Pauling
LP:jr
- Letter from LP to Mr. E. C. Barrett RE: Requests the fellowship help be Mr. Arthur Pardee during the period April 30, 1943 be extended to amount of $65.45 to cover tuition for remainder of the term. [Filed under LP Biographical: Academia: Box #1.029 file 29.1]
- Letter from LP to Mr. W. Hertenstein RE: Sends rules regarding the problem of locks and keys to the Gates and Crellin Laboratories. [Filed under California Institute of Technology: Materials re: Division of Chemistry and Chemical Engineering, 1933-1963, No Date: Box #1.024, Folder 24.10]
- Letter from LP to RA Millikan RE: States that the amount mentioned in the second line on page 9 should be $31,000. LP is pleased to see suggestion that work in metallurgy should be pushed forward. [Letter from I Howard to LP June 1, 1943] [Filed under California Institute of Technology: Materials re: Division of Chemistry and Chemical Engineering, 1933-1963, No Date: Box #1.024, Folder 24.10]
- Letter from LP to S. D. Beard, American Cyanamid Company. RE: Thanks him for calling his attention to the article. Had not known of it before. Having a copy sent to LP. [Letter from Beard to LP May 26, 1943] [Filed under LP Science: Materials re: Antibody and Antigen Research; the Nature of Serological Reactions, 1940-1947, 1950-1952, 1973, 1986: Box #7.001 Folder #1.1]
- Letter from Professor M. A. Peacock, Department of Mineralogy, University of Toronto to LP RE: Thanks LP for the return of his manuscript and for all suggestions and comments. Discusses progress made on determination of structure. [Letters from LP to Peacock May 24, 1943, June 9, 1943] [Filed under LP Correspondence: Box #312.8, file: (P: Correspondence, 1943)]
- Memorandum from J. H. Ruston, Technical Aide, Section 11.1, National Defense Research Committee, to LP. RE: Informs him of an address change. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.1]
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June
3, 1943
