August 31, 1949 - Linus Pauling Day-by-Day

Bill from Pasadena Clinical laboratory for Complete blood count and heterophile for Peter, Complete blood count for Linus and for Crellin. $13.00 [LP Biographical: Business and Financial 4.059, folder 59.3]

Letter from A. V. Grosse, Secretary, Committee on Foreign Compendia, to Gentlemen. RE: Informs them that the meeting has been moved to a Wednesday so it will not interfere with registration day. Requests to know their addresses while in Atlantic City. Extensive notes on the back. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]

Letter from Alden H. Emery, Executive Secretary, to Committee Initiate Plans for the 75th Anniversary Celebration. RE: Informs him of the meeting time and place. Attaches a report listing all the matters proposed for parts of the celebration. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1944-1949: Box #14.009 Folder #9.2]

Letter from LP to Alden H. Emery, Executive Secretary. RE: Thanks him for his letter. Intends to take his advice. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]

Letter from LP to Dr. W. A. Hamor, Editor, Chemical Monographs RE: Replies that he was aware of the matter brought up in the letter by Hoffman, and that his statements still stand. [Letter from Hamor to LP August 24, 1949] [Filed under LP Correspondence Box #70.4, file:(Chemical Monographs, 1946-1950)]

Letter from LP to F. L. Kunz RE: Informs him that he and AHP will be gone until September 27, so cannot meet him on any of his specified dates. Suggests Kunz should go through Dean Watson if he wants to talk to President Sproul. Adds that he strongly supports moving the proposed Institute to California. [Letter from Kunz to LP August 30, 1949] [Filed under LP Correspondence: Box #122.8, file:(Foundation for Integrated Research)]

Letter from LP to George Lull RE: Thanks him for the copy of the AMA's constitution and bylaws. [Letter from Lull to LP August 23, 1949] [Filed under LP Correspondence: Box #11.5, file:(American Medical Association, 1949, 1959)]

Letter from LP to H. I . Cramer, Division of Rubber Chemistry. RE: Accepts his invitation. Asks if his wife is invited. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]

Letter from LP to Henry Holt & Co. RE: Acknowledges receipt of The Unitary Principle in Physics and Biology by L.L. Whyte. States that he found nothing significant in the book and that, though listed as a teacher of the author, he has never met the author. Also notes that he thinks that chemistry needs to be mentioned in the title as it is used throughout the book. [Filed under LP Correspondence: Box #165.14, file:(H: Correspondence, 1949)]

Letter from LP to L.W. Rember RE: Thanks him for the material he sent on the AMA. [Letter from Rember to LP August 29, 1949] [Filed under LP Correspondence: Box #11.5, file:(American Medical Association, 1949, 1959)]

Letter from LP to M. Robert Bienaime, President, Society of Industrial Chemistry. RE: Thanks him for his letter. Is sorry to learn of the difficulties with the French delegation. Does not know that there is anything else he could do. Two copies. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]

Letter from Max M. Friedman, President, American Association of Clinical Chemists, to LP. RE: Invites him to a dinner for clinical chemists in Atlantic City. Encloses a manuscript of his address to be delivered at that time.

Letter from W. E. Kuhn, Division of Petroleum Chemistry, to LP. RE: Regrets that he will be unable to attend the division events. [Filed under LP Science: American Chemical Society: Correspondence, 1949-1950: Box #14.005 Folder #5.1]

Memo from LP to Dr. David P. Shoemaker, cc: Peter Pauling, RE: States that he has suggested to Peter to investigate some of the phases of the problem discussed in August 26th memo. Mentions the particular issues which Peter will look into. [Memos from LP to Dr. David P. Shoemaker August 26, 1949, to Peter Pauling September 1, 1949] [Filed under LP Correspondence: #363.3]

Memo from LP to Dr. David P. Shoemaker. [Filed under LP Correspondence: #363.3]

California Institute of Technology

Inter-Office Memo

To David Shoemaker

From Linus Pauling

August. 31, 1949

Intermetallic compounds to be investigated

In a paper by E. Zintl and O. Treusch, Z. phys. Chem., B34., 225 (1936) abstracted in Strukturbericht, 4, p. 237, there is a discussion of a compound with composition very close to CuGa₂. φ phase ,the unit of structure is tetragonal and the three atoms in the unit are put in the position 000, 1/2 1/2 x, and 1/2 l/2 y, x = 0.70, y = 0.27. The authors say that the intensities show that y is not equal to 1 - x. They contend that the copper atom is at 1/2 1/2 y.

I think the structure is probably right, except that the copper atom should be at 000, and x should be equal to 1 - y, these two positions being crystallographically equivalent, and occupied by gallium atoms. With such a structure each gallium atom would have coordination number 5, somewhat similar to its environment in the element itself. Copper has coordination number 8 (or 12, if a rather long distance between neighboring copper atoms is considered to be significant).

The crystals are apparently easily prepared - they show basal cleavage, and single crystal diagrams were taken by the investigators.

Because of the interesting characteristics of this structure, I suggest that you have somebody make crystals and reinvestigate the structure, in order to check on the position of the gallium atoms. I suggest also that an effort be made to obtain crystals of other compounds with the same structure, such as AgGa₂.

Linus Pauling:W

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