Force Constant Calculator From FTIR Spectroscopy
Cite This in Your Publication
Force Constant Calculator From FTIR Spectroscopy - InstaNANO. https://instanano.com/all/characterization/ftir/force-constant/ (accessed December 5th, 2025).
Force Constant Calculator From FTIR Spectroscopy - InstaNANO. https://instanano.com/all/characterization/ftir/force-constant/ (accessed December 5th, 2025).
This calculator can determine force constant values from FTIR peak position and atomic weight values of atoms.
FTIR Peak Position
cm⁻¹
Atomic Weight of 1st atom
g/mol
Atomic Weight of 2nd atom
g/mol
Results
For Single Bond
dyne/cm
For Double Bond
dyne/cm
Calculation Tutorial:
STEP1: In above calculations Force Constant value is calculated for Carbon and Hydrogen atoms, where its peak observed at 3023cm-1.STEP2: Enter the Peak position observed in FTIR spectra for any of 2 atoms in the 1st input box.
STEP3: Enter the atomic weight values of 2 atoms for which you want to calculate the Force Constant in m1 and m2 input boxes respectively.
