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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-318.286630
Energy at 298.15K-318.292264
Nuclear repulsion energy183.216355
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 B1B95/3-21G
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' 3198 3059 2.63      
2 A' 3094 2960 6.83      
3 A' 1560 1493 15.28      
4 A' 1483 1419 40.23      
5 A' 1465 1402 141.95      
6 A' 1156 1106 35.49      
7 A' 1148 1098 159.24      
8 A' 987 945 76.95      
9 A' 830 794 82.49      
10 A' 628 601 3.63      
11 A' 533 510 1.65      
12 A' 351 336 4.35      
13 A" 3183 3045 12.97      
14 A" 1535 1468 13.33      
15 A" 1155 1105 0.00      
16 A" 680 651 16.19      
17 A" 249 238 0.92      
18 A" 147 141 3.77      

Unscaled Zero Point Vibrational Energy (zpe) 11690.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11184.0 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 B1B95/3-21G
ABC
0.36913 0.15135 0.10957

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.634 0.000
O2 -1.248 0.507 0.000
O3 0.715 1.649 0.000
O4 0.777 -0.623 0.000
C5 -0.152 -1.762 0.000
H6 0.520 -2.618 0.000
H7 -0.779 -1.755 0.891
H8 -0.779 -1.755 -0.891

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.25491.24171.47802.40043.29352.66602.6660
O21.25492.27172.31942.51913.59062.47562.4756
O31.24172.27172.27293.51934.27163.82273.8227
O41.47802.31942.27291.47002.01162.12072.1207
C52.40042.51913.51931.47001.08921.08951.0895
H63.29353.59064.27162.01161.08921.79671.7967
H72.66602.47563.82272.12071.08951.79671.7825
H82.66602.47563.82272.12071.08951.79671.7825

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 109.032 O2 N1 O3 130.994
O2 N1 O4 115.906 O3 N1 O4 113.099
O4 C5 H6 102.615 O4 C5 H7 111.034
O4 C5 H8 111.034 H6 C5 H7 111.114
H6 C5 H8 111.114 H7 C5 H8 109.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.515      
2 O -0.279      
3 O -0.260      
4 O -0.316      
5 C -0.393      
6 H 0.249      
7 H 0.243      
8 H 0.243      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.643 -2.879 0.000 2.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.359 0.232 0.000
y 0.232 -25.511 0.000
z 0.000 0.000 -26.664
Traceless
 xyz
x -5.272 0.232 0.000
y 0.232 3.501 0.000
z 0.000 0.000 1.771
Polar
3z2-r23.542
x2-y2-5.848
xy0.232
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.251 0.426 0.000
y 0.426 5.831 0.000
z 0.000 0.000 2.150


<r2> (average value of r2) Å2
<r2> 103.357
(<r2>)1/2 10.166