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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-168.765509
Energy at 298.15K-168.769119
HF Energy-168.765509
Nuclear repulsion energy68.883391
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 B1B95/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3203 3065 6.33      
2 A' 3078 2944 0.17      
3 A' 1526 1460 13.71      
4 A' 1430 1368 13.77      
5 A' 1369 1310 49.92      
6 A' 1132 1083 17.83      
7 A' 778 745 24.09      
8 A' 540 516 1.84      
9 A" 3165 3028 2.85      
10 A" 1518 1452 16.38      
11 A" 977 934 0.17      
12 A" 143 137 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 9428.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9020.3 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 B1B95/3-21G
ABC
1.88952 0.37301 0.33086

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.974 -0.563 0.000
N2 0.000 0.602 0.000
O3 1.184 0.196 0.000
H4 -0.424 -1.502 0.000
H5 -1.603 -0.452 0.886
H6 -1.603 -0.452 -0.886

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.51882.28791.08871.09201.0920
N21.51881.25222.14712.11302.1130
O32.28791.25222.33912.99532.9953
H41.08872.14712.33911.81031.8103
H51.09202.11302.99531.81031.7720
H61.09202.11302.99531.81031.7720

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.948 N2 C1 H4 109.767
N2 C1 H5 106.931 N2 C1 H6 106.931
H4 C1 H5 112.236 H4 C1 H6 112.236
H5 C1 H6 108.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.512      
2 N 0.041      
3 O -0.269      
4 H 0.236      
5 H 0.252      
6 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.087 -1.415 0.000 2.522
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.008 0.425 0.000
y 0.425 -18.820 0.000
z 0.000 0.000 -16.346
Traceless
 xyz
x -0.425 0.425 0.000
y 0.425 -1.644 0.000
z 0.000 0.000 2.068
Polar
3z2-r24.137
x2-y20.813
xy0.425
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.921 0.227 0.000
y 0.227 2.371 0.000
z 0.000 0.000 2.071


<r2> (average value of r2) Å2
<r2> 42.286
(<r2>)1/2 6.503