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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-320.106564
Energy at 298.15K-320.112306
Nuclear repulsion energy188.967536
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 B1B95/6-31+G**
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 3063 3.02      
2 A' 3084 2950 14.72      
3 A' 1783 1705 449.40      
4 A' 1499 1434 6.41      
5 A' 1464 1400 50.27      
6 A' 1371 1311 203.52      
7 A' 1192 1140 1.15      
8 A' 1058 1012 105.98      
9 A' 891 852 174.45      
10 A' 687 657 15.49      
11 A' 590 565 1.95      
12 A' 340 325 3.80      
13 A" 3180 3042 11.06      
14 A" 1474 1410 11.79      
15 A" 1168 1118 0.69      
16 A" 783 749 13.80      
17 A" 220 211 0.98      
18 A" 147 141 2.34      

Unscaled Zero Point Vibrational Energy (zpe) 12066.2 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 11542.5 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 B1B95/6-31+G**
ABC
0.39761 0.15835 0.11576

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.614 0.000
O2 -1.207 0.541 0.000
O3 0.710 1.582 0.000
O4 0.711 -0.588 0.000
C5 -0.131 -1.744 0.000
H6 0.579 -2.569 0.000
H7 -0.754 -1.772 0.894
H8 -0.754 -1.772 -0.894

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20911.20041.39612.36143.23542.65702.6570
O21.20912.18102.22572.52623.58702.52112.5211
O31.20042.18102.16923.43034.15303.76693.7669
O41.39612.22572.16921.43041.98612.08552.0855
C52.36142.52623.43031.43041.08861.09041.0904
H63.23543.58704.15301.98611.08861.79251.7925
H72.65702.52113.76692.08551.09041.79251.7883
H82.65702.52113.76692.08551.09041.79251.7883

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 113.325 O2 N1 O3 129.700
O2 N1 O4 117.190 O3 N1 O4 113.110
O4 C5 H6 103.247 O4 C5 H7 110.927
O4 C5 H8 110.927 H6 C5 H7 110.699
H6 C5 H8 110.699 H7 C5 H8 110.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.013      
2 O -0.130      
3 O -0.097      
4 O -0.065      
5 C -0.241      
6 H 0.179      
7 H 0.183      
8 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.425 -3.356 0.000 3.383
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.924 0.187 0.000
y 0.187 -26.565 0.000
z 0.000 0.000 -27.074
Traceless
 xyz
x -5.105 0.187 0.000
y 0.187 2.934 0.000
z 0.000 0.000 2.171
Polar
3z2-r24.341
x2-y2-5.359
xy0.187
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.419 0.373 0.000
y 0.373 6.654 0.000
z 0.000 0.000 3.463


<r2> (average value of r2) Å2
<r2> 99.608
(<r2>)1/2 9.980