Subject: force const-bond length scaling relations

From: <[email-masked]>
Date: Mon, 31 Jul 1995 16:17:55 -0500 (EST)

Hello everybody.

Herzberg list a number of empirical equations which
relate force constant and bond length, such as

   (distance)**N x (frequency) = constant

where N is 2 or 3, depending on the situation.

Does anybody have experience with these?  How good
are they?

Does anybody know if there is a valid expression
for metal-ligand bond distances, where the metal
atom's charge is variable?

Would appreciate any comments, references, insights,
etc.

Mary Jo