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All results from a given calculation for CH3ONO (Methyl nitrite)

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-245.033938
Energy at 298.15K-245.038665
Nuclear repulsion energy124.268344
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 mPW1PW91/cc-pVTZ
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' 3189 3059 6.08      
2 A' 3066 2941 11.87      
3 A' 1729 1659 167.33      
4 A' 1492 1432 7.71      
5 A' 1446 1387 2.20      
6 A' 1198 1149 0.30      
7 A' 1036 993 112.26      
8 A' 895 859 87.84      
9 A' 719 690 113.65      
10 A' 357 343 2.60      
11 A" 3140 3012 16.20      
12 A" 1478 1418 10.87      
13 A" 1164 1117 0.64      
14 A" 379 364 2.09      
15 A" 196 188 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 10742.7 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 10304.4 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 mPW1PW91/cc-pVTZ
ABC
0.69176 0.25350 0.19222

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.311 0.316 0.000
O2 0.000 0.877 0.000
H3 1.979 1.172 0.000
H4 1.472 -0.296 0.887
H5 1.472 -0.296 -0.887
N6 -1.032 -0.033 0.000
O7 -0.695 -1.158 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.42581.08491.08941.08942.36902.4899
O21.42582.00042.08002.08001.37552.1499
H31.08492.00041.78791.78793.24263.5463
H41.08942.08001.78791.77342.66902.4951
H51.08942.08001.78791.77342.66902.4951
N62.36901.37553.24262.66902.66901.1743
O72.48992.14993.54632.49512.49511.1743

picture of Methyl nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 N6 115.483 O2 C1 H3 104.833
O2 C1 H4 110.871 O2 C1 H5 110.871
O2 N6 O7 114.725 H3 C1 H4 110.634
H3 C1 H5 110.634 H4 C1 H5 108.967
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100 0.000    
2 O -0.164 0.000    
3 H 0.101 0.000    
4 H 0.090 0.000    
5 H 0.090 0.000    
6 N 0.162 0.000    
7 O -0.179 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.173 0.213 0.000 2.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.677 0.436 0.000
y 0.436 -25.243 0.000
z 0.000 0.000 -21.842
Traceless
 xyz
x 1.865 0.436 0.000
y 0.436 -3.483 0.000
z 0.000 0.000 1.619
Polar
3z2-r23.237
x2-y23.565
xy0.436
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.811 0.745 0.000
y 0.745 4.558 0.000
z 0.000 0.000 3.077


<r2> (average value of r2) Å2
<r2> 64.800
(<r2>)1/2 8.050