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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-169.737276
Energy at 298.15K-169.740993
HF Energy-169.737276
Nuclear repulsion energy70.815424
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 B1B95/6-31G(2df,p)
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' 3178 3043 9.73      
2 A' 3051 2922 1.56      
3 A' 1735 1661 71.55      
4 A' 1452 1391 20.30      
5 A' 1367 1310 20.02      
6 A' 1159 1110 15.56      
7 A' 867 830 22.46      
8 A' 576 552 2.01      
9 A" 3147 3014 2.59      
10 A" 1453 1391 9.33      
11 A" 964 923 1.10      
12 A" 176 168 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 9562.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9157.5 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 B1B95/6-31G(2df,p)
ABC
2.06258 0.38838 0.34786

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.938 -0.570 0.000
N2 0.000 0.569 0.000
O3 1.148 0.235 0.000
H4 -0.408 -1.522 0.000
H5 -1.576 -0.458 0.879
H6 -1.576 -0.458 -0.879

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.47462.23541.09031.09241.0924
N21.47461.19572.13032.07642.0764
O32.23541.19572.34692.94542.9454
H41.09032.13032.34691.80881.8088
H51.09242.07642.94541.80881.7584
H61.09242.07642.94541.80881.7584

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.266 N2 C1 H4 111.438
N2 C1 H5 107.030 N2 C1 H6 107.030
H4 C1 H5 111.931 H4 C1 H6 111.931
H5 C1 H6 107.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 N 0.061      
3 O -0.223      
4 H 0.145      
5 H 0.163      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.874 -1.301 0.000 2.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.694 0.344 0.000
y 0.344 -18.592 0.000
z 0.000 0.000 -16.320
Traceless
 xyz
x -0.238 0.344 0.000
y 0.344 -1.585 0.000
z 0.000 0.000 1.823
Polar
3z2-r23.646
x2-y20.898
xy0.344
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.248 0.354 0.000
y 0.354 3.034 0.000
z 0.000 0.000 2.618


<r2> (average value of r2) Å2
<r2> 40.841
(<r2>)1/2 6.391