Subject: Semiempirical parameterization for porphyrins ?

From: <[email-masked]>
Date: Thu, 12 Jan 1995 10:49:17 -0700 (MST)

Dear Netters,

I am going to do some semiempirical calculations of Fe(III) porphyrin
complexes, and trying to get information on the following two questions:

1) Which of available parameterizations is "the best" ?

2) What commercially available programs have parameterization 
appropriate for porphyrin complexes, and what is the price of
such programs ?

I will summarize all replies and post them on this net. 
Thanks in advance.

Konstantin                  <[email-masked]>