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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-167.521072
Energy at 298.15K-167.524589
HF Energy-167.521072
Nuclear repulsion energy67.367835
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 B1B95/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' 3523 3111 1.05      
2 A' 3318 2930 4.65      
3 A' 1681 1484 7.41      
4 A' 1631 1441 14.14      
5 A' 1476 1304 6.53      
6 A' 1155 1020 18.36      
7 A' 884 781 16.32      
8 A' 523 462 0.21      
9 A" 3511 3100 0.47      
10 A" 1631 1440 6.70      
11 A" 991 875 0.02      
12 A" 149 131 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 10237.4 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 9039.6 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 B1B95/STO-3G
ABC
1.79649 0.35518 0.31441

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.991 -0.598 0.000
N2 0.000 0.628 0.000
O3 1.205 0.220 0.000
H4 -0.450 -1.555 0.000
H5 -1.624 -0.507 0.895
H6 -1.624 -0.507 -0.895

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.57592.34321.09961.10001.1000
N21.57591.27202.22902.17342.1734
O32.34321.27202.42753.05463.0546
H41.09962.22902.42751.81071.8107
H51.10002.17343.05461.81071.7900
H61.10002.17343.05461.81071.7900

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 111.601
N2 C1 H5 107.285 N2 C1 H6 107.285
H4 C1 H5 110.807 H4 C1 H6 110.807
H5 C1 H6 108.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.196      
2 N -0.021      
3 O -0.069      
4 H 0.091      
5 H 0.098      
6 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.007 -1.200 0.000 1.566
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.497 0.433 0.000
y 0.433 -17.335 0.000
z 0.000 0.000 -15.169
Traceless
 xyz
x -0.245 0.433 0.000
y 0.433 -1.502 0.000
z 0.000 0.000 1.747
Polar
3z2-r23.493
x2-y20.838
xy0.433
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.559 0.272 0.000
y 0.272 1.316 0.000
z 0.000 0.000 1.173


<r2> (average value of r2) Å2
<r2> 43.007
(<r2>)1/2 6.558