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

using model chemistry: mPW1PW91/6-311G**

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 mPW1PW91/6-311G**
 hartrees
Energy at 0K-245.008021
Energy at 298.15K-245.012749
Nuclear repulsion energy124.080909
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 mPW1PW91/6-311G**
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' 3202 3064 6.33      
2 A' 3069 2937 11.37      
3 A' 1740 1664 168.64      
4 A' 1494 1429 8.60      
5 A' 1448 1385 2.66      
6 A' 1198 1146 0.48      
7 A' 1037 992 122.12      
8 A' 897 858 83.75      
9 A' 727 696 104.59      
10 A' 359 344 2.68      
11 A" 3147 3011 18.61      
12 A" 1478 1414 12.10      
13 A" 1165 1114 0.51      
14 A" 385 368 2.81      
15 A" 192 184 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 10768.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10302.1 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 mPW1PW91/6-311G**
ABC
0.69079 0.25235 0.19152

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.316 0.317 0.000
O2 0.000 0.875 0.000
H3 1.978 1.178 0.000
H4 1.477 -0.296 0.889
H5 1.477 -0.296 -0.889
N6 -1.034 -0.031 0.000
O7 -0.699 -1.159 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.42951.08591.09121.09122.37602.4975
O21.42952.00122.08342.08341.37462.1500
H31.08592.00121.79211.79213.24573.5531
H41.09122.08341.79211.77732.67692.5037
H51.09122.08341.79211.77732.67692.5037
N62.37601.37463.24572.67692.67691.1767
O72.49752.15003.55312.50372.50371.1767

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 115.833 O2 C1 H3 104.587
O2 C1 H4 110.772 O2 C1 H5 110.772
O2 N6 O7 114.636 H3 C1 H4 110.806
H3 C1 H5 110.806 H4 C1 H5 109.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.176      
2 O -0.269      
3 H 0.149      
4 H 0.143      
5 H 0.143      
6 N 0.224      
7 O -0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.261 0.165 0.000 2.267
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.568 0.455 0.000
y 0.455 -25.527 0.000
z 0.000 0.000 -21.772
Traceless
 xyz
x 2.081 0.455 0.000
y 0.455 -3.857 0.000
z 0.000 0.000 1.776
Polar
3z2-r23.552
x2-y23.959
xy0.455
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.384 0.749 0.000
y 0.749 4.232 0.000
z 0.000 0.000 2.717


<r2> (average value of r2) Å2
<r2> 65.012
(<r2>)1/2 8.063