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All results from a given calculation for CH3NO2 (Methane, nitro-)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS Os out of place 1A'
Energy calculated at MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.712319
Energy at 298.15K 
HF Energy-243.754360
Nuclear repulsion energy125.232345
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 MP2=FULL/6-311+G(3df,2p)
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' 3238 3053 1.13      
2 A' 3133 2953 1.40      
3 A' 1503 1417 12.76      
4 A' 1441 1358 15.13      
5 A' 1430 1348 39.31      
6 A' 1153 1087 0.21      
7 A' 955 901 4.63      
8 A' 682 643 22.41      
9 A' 615 579 2.82      
10 A" 3266 3079 0.07      
11 A" 1767 1666 174.84      
12 A" 1497 1411 25.29      
13 A" 1135 1070 3.16      
14 A" 488 460 0.84      
15 A" 33i 31i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11134.3 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 10496.3 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 MP2=FULL/6-311+G(3df,2p)
ABC
0.41000 0.35663 0.19781

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.312 0.000
N2 -0.011 0.167 0.000
H3 1.041 -1.618 0.000
H4 -0.491 -1.653 0.901
H5 -0.491 -1.653 -0.901
O6 0.001 0.726 -1.088
O7 0.001 0.726 1.088

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.47961.08461.08141.08142.31102.3110
N21.47962.07222.08672.08671.22371.2237
H31.08462.07221.77811.77812.78612.7861
H41.08142.08671.77811.80163.13992.4366
H51.08142.08671.77811.80162.43663.1399
O62.31101.22372.78613.13992.43662.1769
O72.31101.22372.78612.43663.13992.1769

picture of Methane, nitro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O6 117.177 C1 N2 O7 117.177
N2 C1 H3 106.814 N2 C1 H4 108.129
N2 C1 H5 108.129 H3 C1 H4 110.356
H3 C1 H5 110.356 H4 C1 H5 112.823
O6 N2 O7 125.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability