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All results from a given calculation for CH3NO3 (Methyl nitrate)

using model chemistry: B1B95/6-31G*

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*
 hartrees
Energy at 0K-320.081371
Energy at 298.15K-320.087110
Nuclear repulsion energy189.544437
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*
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' 3221 3058 4.82      
2 A' 3107 2950 13.17      
3 A' 1824 1732 383.41      
4 A' 1526 1449 4.62      
5 A' 1487 1412 55.34      
6 A' 1393 1323 190.68      
7 A' 1204 1143 1.61      
8 A' 1080 1026 110.62      
9 A' 914 868 158.72      
10 A' 697 662 10.09      
11 A' 601 571 1.22      
12 A' 346 328 3.92      
13 A" 3200 3038 13.14      
14 A" 1500 1424 9.31      
15 A" 1184 1124 0.76      
16 A" 794 754 18.72      
17 A" 198 188 1.11      
18 A" 152 144 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 12214.8 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 11595.5 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*
ABC
0.39912 0.15976 0.11663

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.610 0.000
O2 -1.204 0.536 0.000
O3 0.708 1.577 0.000
O4 0.712 -0.584 0.000
C5 -0.131 -1.735 0.000
H6 0.575 -2.563 0.000
H7 -0.756 -1.762 0.893
H8 -0.756 -1.762 -0.893

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20641.19801.39062.34873.22512.64502.6450
O21.20642.17702.21932.51143.57322.50552.5055
O31.19802.17702.16123.41614.14213.75323.7532
O41.39062.21932.16121.42601.98352.08262.0826
C52.34872.51143.41611.42601.08821.09001.0900
H63.22513.57324.14211.98351.08821.79131.7913
H72.64502.50553.75322.08261.09001.79131.7852
H82.64502.50553.75322.08261.09001.79131.7852

picture of Methyl nitrate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O4 C5 112.994 O2 N1 O3 129.755
O2 N1 O4 117.245 O3 N1 O4 113.000
O4 C5 H6 103.357 O4 C5 H7 111.038
O4 C5 H8 111.038 H6 C5 H7 110.654
H6 C5 H8 110.654 H7 C5 H8 109.954
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.764      
2 O -0.379      
3 O -0.361      
4 O -0.364      
5 C -0.266      
6 H 0.205      
7 H 0.200      
8 H 0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.378 -3.142 0.000 3.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.050 0.097 0.000
y 0.097 -25.965 0.000
z 0.000 0.000 -26.497
Traceless
 xyz
x -4.819 0.097 0.000
y 0.097 2.808 0.000
z 0.000 0.000 2.010
Polar
3z2-r24.021
x2-y2-5.085
xy0.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.563 0.369 0.000
y 0.369 5.771 0.000
z 0.000 0.000 2.778


<r2> (average value of r2) Å2
<r2> 98.578
(<r2>)1/2 9.929