Summary--Gaussian IRC calculation

[Peking <xiaopeng-: at :-astro.ocis.temple.edu>]

 Dear nettlers,
 	Several days ago, I posted a problem about Gaussian92 or 94 IRC
 calculation. And wondering if it is a bug.
 	Due to some of my typing error, I misguided some people to the
 typo and thanks for their answers. Actually the problem is NOT anything
 missing from my command file. Although the problem has been solved, I
 still do not know what's wrong with it.
 	Thanks to Stefan FAn, Magda Wajrak, Mike Frisch, Mori Seiji and
 Dr. Doug Fox for their reply.
 	I ran IRC before using G92 and has no problem, so this time I am
 wondering why it always give me error termination.
 	Well, I should talk about the solution. Mori Seiji suggested me
 copy the .chk file and run IRC in 2 separate calculation. one include
 "forward" option in IRC and another include "reverse". I
 used this and
 solved the problem.
 	Dr. Doug Fox suggested me include "Geom=(coord, checkpoint) in the
 command file and he run this on his computer. Since I used "forward"
 and
 "reverse" option and solved the problem, I did not try this.
 	And I still don't know why "geom=checkpoint" does not work, but
 "geom=(coord, checkpoint) will work, why spliting the IRC calculation into
 2
 separate will work, combining them together does not work. It seems it is
 not the probelm of memory or space since I have run a much bigger IRC
 problem at MP2 level and had no problem.
 	Thanks again!
 xiaopeng
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