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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-168.801023
Energy at 298.15K-168.804503
HF Energy-168.801023
Nuclear repulsion energy67.290427
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 BLYP/3-21G
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' 3092 3075 11.27      
2 A' 2969 2953 0.58      
3 A' 1481 1473 12.98      
4 A' 1334 1327 3.33      
5 A' 1258 1252 44.40      
6 A' 1064 1058 22.43      
7 A' 666 662 38.97      
8 A' 503 500 0.06      
9 A" 3046 3030 7.00      
10 A" 1478 1470 11.33      
11 A" 908 903 0.15      
12 A" 133 132 2.57      

Unscaled Zero Point Vibrational Energy (zpe) 8965.7 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 8916.4 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 BLYP/3-21G
ABC
1.79475 0.35538 0.31454

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.999 -0.586 0.000
N2 0.000 0.624 0.000
O3 1.211 0.203 0.000
H4 -0.432 -1.526 0.000
H5 -1.631 -0.472 0.896
H6 -1.631 -0.472 -0.896

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.56922.34711.09771.10221.1022
N21.56921.28222.19312.15962.1596
O32.34711.28222.38593.05583.0558
H41.09772.19312.38591.83061.8306
H51.10222.15963.05581.83061.7911
H61.10222.15963.05581.83061.7911

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.398 N2 C1 H4 109.366
N2 C1 H5 106.579 N2 C1 H6 106.579
H4 C1 H5 112.637 H4 C1 H6 112.637
H5 C1 H6 108.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.448      
2 N 0.047      
3 O -0.235      
4 H 0.202      
5 H 0.217      
6 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.849 -1.264 0.000 2.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.975 0.372 0.000
y 0.372 -18.851 0.000
z 0.000 0.000 -16.442
Traceless
 xyz
x -0.328 0.372 0.000
y 0.372 -1.643 0.000
z 0.000 0.000 1.971
Polar
3z2-r23.941
x2-y20.877
xy0.372
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.153 0.351 0.000
y 0.351 2.544 0.000
z 0.000 0.000 2.132


<r2> (average value of r2) Å2
<r2> 43.820
(<r2>)1/2 6.620