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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: mPW1PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-169.776621
Energy at 298.15K-169.780336
HF Energy-169.776621
Nuclear repulsion energy70.656171
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/aug-cc-pVDZ
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' 3174 3041 10.55      
2 A' 3044 2917 1.77      
3 A' 1719 1647 89.68      
4 A' 1428 1368 24.64      
5 A' 1354 1297 28.85      
6 A' 1158 1110 17.75      
7 A' 887 850 23.64      
8 A' 578 554 2.19      
9 A" 3143 3012 1.77      
10 A" 1428 1368 13.16      
11 A" 961 921 1.77      
12 A" 168 161 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 9520.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9123.3 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 mPW1PW91/aug-cc-pVDZ
ABC
2.06713 0.38615 0.34641

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.941 -0.567 0.000
N2 0.000 0.564 0.000
O3 1.154 0.234 0.000
H4 -0.419 -1.531 0.000
H5 -1.582 -0.442 0.884
H6 -1.582 -0.442 -0.884

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47122.24261.09631.09831.0983
N21.47121.20002.13572.07212.0721
O32.24261.20002.36302.95272.9527
H41.09632.13572.36301.82171.8217
H51.09832.07212.95271.82171.7671
H61.09832.07212.95271.82171.7671

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.800 N2 C1 H4 111.748
N2 C1 H5 106.597 N2 C1 H6 106.597
H4 C1 H5 112.208 H4 C1 H6 112.208
H5 C1 H6 107.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.730      
2 N -0.040      
3 O -0.454      
4 H -0.108      
5 H -0.064      
6 H -0.064      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.051 -1.399 0.000 2.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.387 0.428 0.000
y 0.428 -19.344 0.000
z 0.000 0.000 -16.757
Traceless
 xyz
x -0.336 0.428 0.000
y 0.428 -1.773 0.000
z 0.000 0.000 2.109
Polar
3z2-r24.218
x2-y20.958
xy0.428
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.157 0.373 0.000
y 0.373 3.976 0.000
z 0.000 0.000 3.216


<r2> (average value of r2) Å2
<r2> 41.369
(<r2>)1/2 6.432