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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-167.403220
Energy at 298.15K-167.406754
HF Energy-167.403220
Nuclear repulsion energy67.389704
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 PBE1PBE/STO-3G
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' 3537 3120 1.11      
2 A' 3331 2938 4.67      
3 A' 1688 1489 7.21      
4 A' 1639 1446 14.86      
5 A' 1486 1310 7.00      
6 A' 1166 1029 18.61      
7 A' 895 789 16.56      
8 A' 534 471 0.22      
9 A" 3524 3109 0.51      
10 A" 1639 1446 6.93      
11 A" 997 880 0.01      
12 A" 150 132 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 10292.8 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 9079.3 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 PBE1PBE/STO-3G
ABC
1.79723 0.35554 0.31472

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.990 -0.597 0.000
N2 0.000 0.627 0.000
O3 1.205 0.220 0.000
H4 -0.449 -1.555 0.000
H5 -1.624 -0.506 0.895
H6 -1.624 -0.506 -0.895

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.57452.34191.10011.10041.1004
N21.57451.27182.22802.17282.1728
O32.34191.27182.42613.05403.0540
H41.10012.22802.42611.81141.8114
H51.10042.17283.05401.81141.7904
H61.10042.17283.05401.81141.7904

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.276 N2 C1 H4 111.595
N2 C1 H5 107.306 N2 C1 H6 107.306
H4 C1 H5 110.805 H4 C1 H6 110.805
H5 C1 H6 108.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 N -0.020      
3 O -0.067      
4 H 0.092      
5 H 0.100      
6 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.002 -1.200 0.000 1.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.479 0.432 0.000
y 0.432 -17.330 0.000
z 0.000 0.000 -15.158
Traceless
 xyz
x -0.236 0.432 0.000
y 0.432 -1.511 0.000
z 0.000 0.000 1.747
Polar
3z2-r23.493
x2-y20.850
xy0.432
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.541 0.266 0.000
y 0.266 1.300 0.000
z 0.000 0.000 1.163


<r2> (average value of r2) Å2
<r2> 42.972
(<r2>)1/2 6.555