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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-168.859317
Energy at 298.15K-168.863135
HF Energy-168.859317
Nuclear repulsion energy71.552957
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 HF/aug-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' 3293 2998 15.05      
2 A' 3179 2895 7.05      
3 A' 1945 1771 101.07      
4 A' 1558 1419 22.25      
5 A' 1511 1376 7.54      
6 A' 1272 1158 14.52      
7 A' 995 906 3.24      
8 A' 629 573 5.44      
9 A" 3265 2973 10.87      
10 A" 1561 1421 11.45      
11 A" 1080 983 4.04      
12 A" 170 154 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 10228.9 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 9314.5 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 HF/aug-cc-pVDZ
ABC
2.13281 0.39327 0.35386

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.926 -0.577 0.000
N2 0.000 0.557 0.000
O3 1.133 0.253 0.000
H4 -0.391 -1.523 0.000
H5 -1.559 -0.472 0.881
H6 -1.559 -0.472 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.46412.22051.08781.08961.0896
N21.46411.17332.11682.06522.0652
O32.22051.17332.34062.92392.9239
H41.08782.11682.34061.80181.8018
H51.08962.06522.92391.80181.7624
H61.08962.06522.92391.80181.7624

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 114.244 N2 C1 H4 111.240
N2 C1 H5 107.024 N2 C1 H6 107.024
H4 C1 H5 111.681 H4 C1 H6 111.681
H5 C1 H6 107.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.729      
2 N -0.068      
3 O -0.525      
4 H -0.065      
5 H -0.035      
6 H -0.035      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.151 -1.454 0.000 2.596
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.601 0.390 0.000
y 0.390 -19.193 0.000
z 0.000 0.000 -16.800
Traceless
 xyz
x -0.604 0.390 0.000
y 0.390 -1.493 0.000
z 0.000 0.000 2.097
Polar
3z2-r24.195
x2-y20.592
xy0.390
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.677 0.237 0.000
y 0.237 3.464 0.000
z 0.000 0.000 3.009


<r2> (average value of r2) Å2
<r2> 40.801
(<r2>)1/2 6.388