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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-167.961836
Energy at 298.15K-167.965405
HF Energy-167.961836
Nuclear repulsion energy68.744602
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 LSDA/3-21G
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' 3102 3052 6.77      
2 A' 2970 2921 0.79      
3 A' 1453 1429 15.51      
4 A' 1368 1345 18.53      
5 A' 1287 1266 65.74      
6 A' 1086 1068 19.75      
7 A' 753 741 42.07      
8 A' 534 525 1.08      
9 A" 3063 3012 0.09      
10 A" 1440 1416 20.46      
11 A" 919 904 0.03      
12 A" 145 143 4.86      

Unscaled Zero Point Vibrational Energy (zpe) 9059.6 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 8911.0 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 LSDA/3-21G
ABC
1.87386 0.37396 0.33137

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.975 -0.547 0.000
N2 0.000 0.601 0.000
O3 1.189 0.180 0.000
H4 -0.428 -1.503 0.000
H5 -1.617 -0.428 0.891
H6 -1.617 -0.428 -0.891

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.50622.28301.10121.10501.1050
N21.50621.26112.14692.11362.1136
O32.28301.26112.33423.00643.0064
H41.10122.14692.33421.83421.8342
H51.10502.11363.00641.83421.7825
H61.10502.11363.00641.83421.7825

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.865 N2 C1 H4 109.880
N2 C1 H5 107.084 N2 C1 H6 107.084
H4 C1 H5 112.486 H4 C1 H6 112.486
H5 C1 H6 107.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.554      
2 N 0.035      
3 O -0.244      
4 H 0.238      
5 H 0.262      
6 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.066 -1.368 0.000 2.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.794 0.404 0.000
y 0.404 -18.967 0.000
z 0.000 0.000 -16.352
Traceless
 xyz
x -0.135 0.404 0.000
y 0.404 -1.895 0.000
z 0.000 0.000 2.029
Polar
3z2-r24.058
x2-y21.173
xy0.404
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.051 0.273 0.000
y 0.273 2.483 0.000
z 0.000 0.000 2.138


<r2> (average value of r2) Å2
<r2> 42.281
(<r2>)1/2 6.502