Early ... Intro Picture


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Robert G. Parr



Parr in Menton, 7/2001

Robert G. Parr in 2001 at Menton
Photo and © this website
Robert Ghormley Parr was born in Chicago, Ill. in 1921. A.B., Brown University (1942), Ph.D. in 1947, under Bryce Crawford at the University of Minnesota. Worked and published with Mulliken, Roothaan. Published with Pariser in 1952 a series of papers, more or less simultaneous with Pople, which became known as the PPP Method.



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Video clip Parr in a brief look (25 sec) MPEG4; 4 MB Just in case, for Win9x,ME,NT4(?): Get the free download codec DivX4FullInstaller.exe V.4.02 (710 KB) (or better).
Or you may obtain presently (11/2001) from Microsoft the Windows Media Player 7.1 / 10MB, www.microsoft.com, in Europe from : http://www.eu.microsoft.com/germany/ms/windowsmedia/.
It will work. If they are too busy or too advanced get it from this site.
in English
Video clip download Parr in a brief look (25 sec) ZIP/AVI, Indeo 5.04; 4 MB Just in case: You might want to install presently (11/2001) from Microsoft the aboveWindows Media Player 7.1 /10MB. It will work. An other alternative might be : Free plugin download codec Indeo 5.04 (2 MB) in English
Sound clip Parr talks about PPP and DFT (6 min) WAV; 4 MB - in English
Sound clip Parr talks about PPP and DFT (6 min) MP3; 870 KB Also here, among others, the Windows Media Player 7.1 will do the job. in English




R. G. Parr : Parr: On the Genesis of a Theory.
(GIF; 268KB, Presently of reduced quality only.) - sorry - no longer avilable due to of technical problems.

Int. J. Quant. Chem, 37, 327-347 (1990).


R. G. Parr : List of Publications 1950-1989.

Int. J. Quant. Chem, 37, 338-347 (1990).



HappyAni.jpg R. Pariser and R.G. Parr:

A Semi-Empirical Theory of the Electronic Spectra and
Electronic Structure of Complex Unsaturated Molecules. I.     


J. Chem. Phys. 21, 466-471 (1953).
Submitted 1952.
View it! - sorry - no longer avilable due to of technical problems.

R. Pariser and R.G. Parr:

A Semi-Empirical Theory of the Electronic Spectra and
Electronic Structure of Complex Unsaturated Molecules. II.     


J. Chem. Phys. 21, 767-776 (1953).
View it! - sorry - no longer avilable due to of technical problems.




Interview with Professor Robert G. Parr


Menton, preceding a meeting of the International Academy of Quantum Molecular Science

July 6, 2001; 14:00


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Copyright © Mar. 10, 2002 by U. Anders, Ph.D.
e-mail Udo Anders : udo39@t-online.de

Last updated : May 10, 2003 - 17:15 MEST