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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-169.616627
Energy at 298.15K-169.620251
HF Energy-169.616627
Nuclear repulsion energy69.728547
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 PBEPBEultrafine/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3078 3060 11.03      
2 A' 2945 2927 2.44      
3 A' 1609 1600 79.76      
4 A' 1365 1357 23.07      
5 A' 1270 1263 26.79      
6 A' 1090 1084 20.79      
7 A' 785 781 39.23      
8 A' 547 543 0.48      
9 A" 3048 3031 1.38      
10 A" 1364 1356 10.76      
11 A" 895 890 1.14      
12 A" 168 167 2.65      

Unscaled Zero Point Vibrational Energy (zpe) 9081.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9029.0 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 PBEPBEultrafine/cc-pVDZ
ABC
1.99407 0.37744 0.33768

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.951 -0.576 0.000
N2 0.000 0.577 0.000
O3 1.167 0.234 0.000
H4 -0.421 -1.550 0.000
H5 -1.603 -0.451 0.890
H6 -1.603 -0.451 -0.890

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49472.26741.10881.11061.1106
N21.49471.21612.16862.10242.1024
O32.26741.21612.38872.98912.9891
H41.10882.16862.38871.84321.8432
H51.11062.10242.98911.84321.7804
H61.11062.10242.98911.84321.7804

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.131 N2 C1 H4 111.957
N2 C1 H5 106.669 N2 C1 H6 106.669
H4 C1 H5 112.294 H4 C1 H6 112.294
H5 C1 H6 106.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.008      
2 N -0.017      
3 O -0.148      
4 H 0.032      
5 H 0.063      
6 H 0.063      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.807 -1.139 0.000 2.136
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.962 0.293 0.000
y 0.293 -18.971 0.000
z 0.000 0.000 -16.467
Traceless
 xyz
x -0.242 0.293 0.000
y 0.293 -1.756 0.000
z 0.000 0.000 1.999
Polar
3z2-r23.998
x2-y21.009
xy0.293
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.526 0.457 0.000
y 0.457 3.174 0.000
z 0.000 0.000 2.507


<r2> (average value of r2) Å2
<r2> 41.909
(<r2>)1/2 6.474