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

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-318.359876
Energy at 298.15K-318.365148
Nuclear repulsion energy178.299270
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 BLYP/3-21G*
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' 3073 3054 6.34      
2 A' 2986 2966 12.38      
3 A' 1525 1515 13.30      
4 A' 1428 1419 0.54      
5 A' 1366 1357 127.73      
6 A' 1103 1096 7.46      
7 A' 1064 1057 177.83      
8 A' 896 890 47.51      
9 A' 749 744 81.49      
10 A' 570 566 8.70      
11 A' 472 469 0.24      
12 A' 307 305 2.98      
13 A" 3058 3038 24.21      
14 A" 1493 1483 9.20      
15 A" 1107 1100 0.02      
16 A" 612 608 10.38      
17 A" 182 181 1.64      
18 A" 141 140 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 11065.1 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 10993.2 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 BLYP/3-21G*
ABC
0.34736 0.14314 0.10339

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.664 0.000
O2 -1.277 0.555 0.000
O3 0.763 1.676 0.000
O4 0.795 -0.676 0.000
C5 -0.182 -1.804 0.000
H6 0.474 -2.686 0.000
H7 -0.816 -1.789 0.899
H8 -0.816 -1.789 -0.899

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.28131.26751.55802.47453.38302.73732.7373
O21.28132.32752.40952.59983.68302.55242.5524
O31.26752.32752.35233.60614.37133.91293.9129
O41.55802.40952.35231.49252.03512.15462.1546
C52.47452.59983.60611.49251.09951.09961.0996
H63.38303.68304.37132.03511.09951.80971.8097
H72.73732.55243.91292.15461.09961.80971.7977
H82.73732.55243.91292.15461.09961.80971.7977

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 108.404 O2 N1 O3 131.904
O2 N1 O4 115.784 O3 N1 O4 112.312
O4 C5 H6 102.408 O4 C5 H7 111.548
O4 C5 H8 111.548 H6 C5 H7 110.759
H6 C5 H8 110.759 H7 C5 H8 109.660
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.451      
2 O -0.244      
3 O -0.229      
4 O -0.271      
5 C -0.338      
6 H 0.215      
7 H 0.208      
8 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.690 -2.466 0.000 2.561
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.939 0.284 0.000
y 0.284 -25.364 0.000
z 0.000 0.000 -26.784
Traceless
 xyz
x -4.866 0.284 0.000
y 0.284 3.498 0.000
z 0.000 0.000 1.368
Polar
3z2-r22.735
x2-y2-5.576
xy0.284
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 108.236
(<r2>)1/2 10.404