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All results from a given calculation for CH3NO (nitrosomethane)

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 CS 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-169.681296
Energy at 298.15K-169.685010
HF Energy-169.681296
Nuclear repulsion energy69.581730
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 A' 3202 3031 10.37      
2 A' 3074 2910 1.04      
3 A' 1587 1503 30.58      
4 A' 1497 1417 38.18      
5 A' 1423 1347 39.39      
6 A' 1174 1111 19.61      
7 A' 862 816 21.58      
8 A' 568 537 2.31      
9 A" 3177 3007 2.04      
10 A" 1499 1419 19.36      
11 A" 1010 956 0.56      
12 A" 172 163 3.31      

Unscaled Zero Point Vibrational Energy (zpe) 9621.8 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 9108.0 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
2.01929 0.37414 0.33534

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.965 -0.559 0.000
N2 0.000 0.573 0.000
O3 1.181 0.218 0.000
H4 -0.456 -1.524 0.000
H5 -1.600 -0.438 0.882
H6 -1.600 -0.438 -0.882

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48742.28251.09131.09311.0931
N21.48741.23332.14602.08762.0876
O32.28251.23332.39062.98992.9899
H41.09132.14602.39061.80701.8070
H51.09312.08762.98991.80701.7639
H61.09312.08762.98991.80701.7639

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.734 N2 C1 H4 111.730
N2 C1 H5 107.003 N2 C1 H6 107.003
H4 C1 H5 111.627 H4 C1 H6 111.627
H5 C1 H6 107.579
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 C -0.407      
2 N 0.058      
3 O -0.283      
4 H 0.196      
5 H 0.218      
6 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.373 -1.598 0.000 2.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.458 0.463 0.000
y 0.463 -19.191 0.000
z 0.000 0.000 -16.451
Traceless
 xyz
x -0.637 0.463 0.000
y 0.463 -1.737 0.000
z 0.000 0.000 2.374
Polar
3z2-r24.748
x2-y20.734
xy0.463
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.218 0.255 0.000
y 0.255 2.601 0.000
z 0.000 0.000 2.238


<r2> (average value of r2) Å2
<r2> 42.150
(<r2>)1/2 6.492