Force Constant Calculations
Performing force constant calculations on a molecule as small as
benzene is a relatively simple task with a high quality semi-
empirical method such as AM1. The results are also in pretty
good agreement with experiment. Whether this will get you what
need depends on the level of accuracy that you require of the
numbers. There is no simple scaling factor for empirical adjust-
ments as is the case with ab initio methods, but the frequencies
from these type of calculations are generally good to +- 5-10%.
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DR. ANDREW HOLDER
Department of Chemistry || BITNET Addr: AHOLDER \\at// UMKCVAX1
University of Missouri - Kansas City || Internet Addr: aholder \\at//
vax1.umkc.edu
Kansas City, Missouri 64110 || Phone Number: (816) 235-2293
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