Force Constant Units

From: Kamilla Kopec (ozero22_at_yahoo.co.uk)
Date: Wed Jun 10 2009 - 12:08:24 CDT

Apologies as this is pretty off-topic

- has anybody come across units of  [u cm-2] before for bond stretch force constants? I would like to convert a literature force constant quoted in u cm-2 to kcal mol A-2 for comparison with one I am using in "charmm22 with NAMD".  My dimensional analyses have failed to produce a meaningful conversion factor - could someone confirm that u cm-2 is a bonafide force constant unit?

Many thanks.... 

Milla     

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