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: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-277.221976
Energy at 298.15K-277.225488
HF Energy-277.221976
Nuclear repulsion energy72.512249
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 PBEPBEultrafine/aug-cc-pVTZ
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 2772 2741 354.72      
2 A1 1421 1405 50.01      
3 A1 1156 1143 312.93      
4 A1 447 442 35.79      
5 E 2774 2743 153.18      
5 E 2774 2743 153.19      
6 E 1428 1412 1.35      
6 E 1428 1412 1.35      
7 E 1128 1115 4.65      
7 E 1128 1115 4.65      
8 E 66 65 26.73      
8 E 65 65 26.73      

Unscaled Zero Point Vibrational Energy (zpe) 8293.7 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 8200.8 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
5.28808 0.14874 0.14874

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.684
O2 0.000 0.000 -0.283
C3 0.000 0.000 -1.660
H4 0.000 1.027 -2.101
H5 0.889 -0.513 -2.101
H6 -0.889 -0.513 -2.101

Atom - Atom Distances (Å)
  Na1 O2 C3 H4 H5 H6
Na11.96693.34433.92183.92183.9218
O21.96691.37742.08802.08802.0880
C33.34431.37741.11741.11741.1174
H43.92182.08801.11741.77851.7785
H53.92182.08801.11741.77851.7785
H63.92182.08801.11741.77851.7785

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 113.231
O2 C3 H5 113.231 O2 C3 H6 113.231
H4 C3 H5 105.464 H4 C3 H6 105.464
H5 C3 H6 105.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.894      
2 O -0.958      
3 C -0.552      
4 H 0.206      
5 H 0.206      
6 H 0.206      


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 7.791 7.791
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.804 0.000 0.000
y 0.000 -19.804 0.000
z 0.000 0.000 -7.354
Traceless
 xyz
x -6.225 0.000 0.000
y 0.000 -6.225 0.000
z 0.000 0.000 12.450
Polar
3z2-r224.899
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 5.885 0.000 0.000
y 0.000 5.884 0.000
z 0.000 0.000 7.744


<r2> (average value of r2) Å2
<r2> 74.557
(<r2>)1/2 8.635