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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B1B95/TZVP

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/TZVP
 hartrees
Energy at 0K-169.786150
Energy at 298.15K-169.789870
HF Energy-169.786150
Nuclear repulsion energy70.912236
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/TZVP
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' 3169 3033 11.00      
2 A' 3051 2920 1.74      
3 A' 1715 1641 90.61      
4 A' 1457 1394 25.26      
5 A' 1378 1319 29.29      
6 A' 1165 1115 19.07      
7 A' 866 828 25.21      
8 A' 583 557 1.87      
9 A" 3143 3007 2.56      
10 A" 1454 1391 14.65      
11 A" 973 931 2.50      
12 A" 170 163 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 9561.4 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9149.3 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/TZVP
ABC
2.08578 0.38804 0.34812

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.937 -0.571 0.000
N2 0.000 0.564 0.000
O3 1.148 0.239 0.000
H4 -0.416 -1.526 0.000
H5 -1.574 -0.454 0.877
H6 -1.574 -0.454 -0.877

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47162.23701.08851.09021.0902
N21.47161.19322.13132.06952.0695
O32.23701.19322.35872.94262.9426
H41.08852.13132.35871.80561.8056
H51.09022.06952.94261.80561.7542
H61.09022.06952.94261.80561.7542

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.753 N2 C1 H4 111.843
N2 C1 H5 106.822 N2 C1 H6 106.822
H4 C1 H5 111.941 H4 C1 H6 111.941
H5 C1 H6 107.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.333      
2 N 0.058      
3 O -0.154      
4 H 0.133      
5 H 0.149      
6 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.069 -1.443 0.000 2.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.400 0.424 0.000
y 0.424 -19.192 0.000
z 0.000 0.000 -16.554
Traceless
 xyz
x -0.527 0.424 0.000
y 0.424 -1.715 0.000
z 0.000 0.000 2.242
Polar
3z2-r24.484
x2-y20.792
xy0.424
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.626 0.305 0.000
y 0.305 3.265 0.000
z 0.000 0.000 2.755


<r2> (average value of r2) Å2
<r2> 41.134
(<r2>)1/2 6.414