return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NaOCH3 (Sodium methoxide)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-277.370192
Energy at 298.15K-277.373828
HF Energy-277.370192
Nuclear repulsion energy73.462084
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at mPW1PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2870 2731 375.61      
2 A1 1524 1450 142.81      
3 A1 1251 1191 309.94      
4 A1 485 461 33.55      
5 E 2881 2741 176.79      
5 E 2881 2741 176.79      
6 E 1508 1435 4.98      
6 E 1508 1435 4.97      
7 E 1200 1142 3.10      
7 E 1200 1142 3.10      
8 E 85 80 28.68      
8 E 85 80 28.68      

Unscaled Zero Point Vibrational Energy (zpe) 8737.6 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 8313.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/6-31G**
ABC
5.38602 0.15322 0.15322

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.658
O2 0.000 0.000 -0.273
C3 0.000 0.000 -1.634
H4 0.000 1.017 -2.083
H5 0.881 -0.509 -2.083
H6 -0.881 -0.509 -2.083

Atom - Atom Distances (Å)
  Na1 O2 C3 H4 H5 H6
Na11.93173.29283.87753.87753.8775
O21.93171.36112.07642.07642.0764
C33.29281.36111.11211.11211.1121
H43.87752.07641.11211.76231.7623
H53.87752.07641.11211.76231.7623
H63.87752.07641.11211.76231.7623

picture of Sodium methoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na1 O2 C3 180.000 O2 C3 H4 113.805
O2 C3 H5 113.805 O2 C3 H6 113.805
H4 C3 H5 104.811 H4 C3 H6 104.811
H5 C3 H6 104.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.638      
2 O -0.722      
3 C -0.055      
4 H 0.046      
5 H 0.046      
6 H 0.046      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 7.187 7.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.020 0.000 0.000
y 0.000 -19.020 0.000
z 0.000 0.000 -6.371
Traceless
 xyz
x -6.325 0.000 0.000
y 0.000 -6.325 0.000
z 0.000 0.000 12.649
Polar
3z2-r225.298
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.915 0.000 0.000
y 0.000 3.914 0.000
z 0.000 0.000 6.239


<r2> (average value of r2) Å2
<r2> 72.249
(<r2>)1/2 8.500