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

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-319.188998
Energy at 298.15K-319.194914
HF Energy-318.471412
Nuclear repulsion energy190.503973
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 CISD/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' 3326 3079 5.16      
2 A' 3213 2975 12.91      
3 A' 1874 1735 507.02      
4 A' 1595 1477 2.94      
5 A' 1572 1455 58.68      
6 A' 1474 1364 232.88      
7 A' 1276 1182 4.39      
8 A' 1152 1067 171.89      
9 A' 993 919 89.90      
10 A' 744 689 0.78      
11 A' 638 590 8.65      
12 A' 373 345 4.81      
13 A" 3314 3068 12.28      
14 A" 1578 1461 8.02      
15 A" 1242 1150 1.72      
16 A" 842 779 25.95      
17 A" 237 219 0.90      
18 A" 146 135 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 12793.4 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 11844.2 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 CISD/6-31G*
ABC
0.40517 0.16046 0.11750

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.602 0.000
O2 -1.201 0.535 0.000
O3 0.697 1.572 0.000
O4 0.700 -0.566 0.000
C5 -0.118 -1.742 0.000
H6 0.609 -2.544 0.000
H7 -0.735 -1.779 0.890
H8 -0.735 -1.779 -0.890

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.20311.19441.36172.34713.20512.64622.6462
O21.20312.16312.19712.52173.57222.52282.5228
O31.19442.16312.13793.41284.11763.75153.7515
O41.36172.19712.13791.43261.98092.07942.0794
C52.34712.52173.41281.43261.08261.08351.0835
H63.20513.57224.11761.98091.08261.78431.7843
H72.64622.52283.75152.07941.08351.78431.7794
H82.64622.52283.75152.07941.08351.78431.7794

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 114.243 O2 N1 O3 128.900
O2 N1 O4 117.746 O3 N1 O4 113.353
O4 C5 H6 103.028 O4 C5 H7 110.697
O4 C5 H8 110.697 H6 C5 H7 110.914
H6 C5 H8 110.914 H7 C5 H8 110.394
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability