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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-169.736785
Energy at 298.15K-169.740507
HF Energy-169.736785
Nuclear repulsion energy70.695555
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 B1B95/6-31+G**
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' 3183 3045 9.75      
2 A' 3058 2925 1.64      
3 A' 1730 1655 92.71      
4 A' 1459 1396 27.29      
5 A' 1380 1321 29.83      
6 A' 1169 1118 17.20      
7 A' 884 846 23.16      
8 A' 582 557 2.11      
9 A" 3154 3017 1.48      
10 A" 1455 1392 15.67      
11 A" 973 931 2.17      
12 A" 173 165 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 9600.1 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9183.4 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 B1B95/6-31+G**
ABC
2.06674 0.38683 0.34675

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.942 -0.564 0.000
N2 0.000 0.565 0.000
O3 1.154 0.230 0.000
H4 -0.423 -1.524 0.000
H5 -1.579 -0.444 0.880
H6 -1.579 -0.444 -0.880

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47062.24111.09101.09281.0928
N21.47061.20182.13132.06992.0699
O32.24111.20182.35782.94882.9488
H41.09102.13132.35781.81031.8103
H51.09282.06992.94881.81031.7595
H61.09282.06992.94881.81031.7595

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.604 N2 C1 H4 111.755
N2 C1 H5 106.777 N2 C1 H6 106.777
H4 C1 H5 111.983 H4 C1 H6 111.983
H5 C1 H6 107.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.430      
2 N -0.029      
3 O -0.095      
4 H 0.182      
5 H 0.187      
6 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.133 -1.456 0.000 2.582
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.435 0.459 0.000
y 0.459 -19.389 0.000
z 0.000 0.000 -16.735
Traceless
 xyz
x -0.373 0.459 0.000
y 0.459 -1.805 0.000
z 0.000 0.000 2.178
Polar
3z2-r24.355
x2-y20.955
xy0.459
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.851 0.291 0.000
y 0.291 3.528 0.000
z 0.000 0.000 2.849


<r2> (average value of r2) Å2
<r2> 41.329
(<r2>)1/2 6.429