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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-318.392568
Energy at 298.15K-318.398060
Nuclear repulsion energy181.701369
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 B3LYP/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' 3172 3061 3.89      
2 A' 3079 2971 8.73      
3 A' 1564 1509 13.53      
4 A' 1477 1425 1.87      
5 A' 1431 1381 166.43      
6 A' 1151 1110 2.38      
7 A' 1122 1082 193.28      
8 A' 961 927 75.59      
9 A' 809 781 83.65      
10 A' 614 593 5.34      
11 A' 518 500 0.96      
12 A' 329 317 3.99      
13 A" 3159 3049 16.47      
14 A" 1535 1482 11.18      
15 A" 1151 1111 0.01      
16 A" 663 640 15.49      
17 A" 201 194 1.30      
18 A" 142 137 3.17      

Unscaled Zero Point Vibrational Energy (zpe) 11539.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 11133.9 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 B3LYP/3-21G
ABC
0.36301 0.14831 0.10745

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.643 0.000
O2 -1.257 0.532 0.000
O3 0.732 1.654 0.000
O4 0.776 -0.637 0.000
C5 -0.159 -1.782 0.000
H6 0.516 -2.639 0.000
H7 -0.786 -1.779 0.893
H8 -0.786 -1.779 -0.893

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.26201.24881.49692.43033.32222.69832.6983
O21.26202.28452.34512.56103.63262.52142.5214
O31.24882.28452.29193.55034.29873.85893.8589
O41.49692.34512.29191.47842.01862.13112.1311
C52.43032.56103.55031.47841.09091.09101.0910
H63.32223.63264.29872.01861.09091.79781.7978
H72.69832.52143.85892.13111.09101.79781.7855
H82.69832.52143.85892.13111.09101.79781.7855

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 109.532 O2 N1 O3 130.973
O2 N1 O4 116.165 O3 N1 O4 112.862
O4 C5 H6 102.521 O4 C5 H7 111.185
O4 C5 H8 111.185 H6 C5 H7 110.976
H6 C5 H8 110.976 H7 C5 H8 109.833
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.514     0.774
2 O -0.279     -0.347
3 O -0.258     -0.340
4 O -0.310     -0.331
5 C -0.347     -0.110
6 H 0.231     0.145
7 H 0.225     0.104
8 H 0.225     0.104


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.646 -2.824 0.000 2.897
CHELPG        
AIM        
ESP -0.674 -2.868 0.000 2.946


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.369 0.252 0.000
y 0.252 -25.521 0.000
z 0.000 0.000 -26.698
Traceless
 xyz
x -5.259 0.252 0.000
y 0.252 3.513 0.000
z 0.000 0.000 1.747
Polar
3z2-r23.493
x2-y2-5.848
xy0.252
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.306 0.416 0.000
y 0.416 5.958 0.000
z 0.000 0.000 2.156


<r2> (average value of r2) Å2
<r2> 105.048
(<r2>)1/2 10.249