Re: MOPAC 7 and MOPAC 93
- From: Andrey V Khavryutchenko <akhavr(-(at)-)compchem.kiev.ua>
- Organization: Computational Chemistry Group
- Subject: Re: MOPAC 7 and MOPAC 93
- Date: Thu, 19 Dec 1996 16:54:50 +0200
James J. P. Stewart wrote:
> Recently there have been several messages regarding possible
> errors in MOPAC 7. These errors were revealed at run-time.
> I would like to reiterate: MOPAC 7 is NOT intended for production
> work. It should NOT be used by users. It is intended to be a
> public-domain source of code for program developers.
Due to this statement, I've got the question. What is the copyright
status of MOPAC7. Or more preciselly, where can I use its code?
As it is stated in the beginning of aababc.f:
C Notice of Public Domain nature of this Program
C 'This computer program is a work of the United States
C Government and as such is not subject to protection by
C copyright (17 U.S.C. # 105.) Any person who fraudulently
C places a copyright notice or does any other act contrary
C to the provisions of 17 U.S. Code 506(c) shall be subject
C to the penalties provided therein. This notice shall not
C be altered or removed from this software and is to be on
C all reproductions.'
Does this means I can use this code anywhere I want? Can I sell it or
the code, derived for it? Or, possibly, only use it for non-commercial
Any hint will be helpfull.
> There are about 300 to 400 known errors in MOPAC 7. The errors that
> users have reported are known bugs.
Are they listed somewhere for public access?
> Many users have asked for bug-fixes for MOPAC 7. These requests will not
> be honored. MOPAC 7 is not supported code. If users elect to use
> a program that is known to be buggy, and which is not supported, then
> user beware - a lot of time has been unecessarily wasted by using MOPAC 7.
Please, respond directly to me (akhavr(-(at)-)compchem.kiev.ua).
If there will be requests, I will post the summary.
Andrey V Khavryutchenko
Interests: Computational Chemistry, OOA&OOP, The Net