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

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-244.386036
Energy at 298.15K 
HF Energy-243.677341
Nuclear repulsion energy124.334116
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/cc-pVDZ
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' 3255 3093 1.34      
2 A' 3134 2979 2.08      
3 A' 1484 1410 10.91      
4 A' 1435 1364 69.01      
5 A' 1410 1340 3.43      
6 A' 1134 1078 0.45      
7 A' 952 905 9.89      
8 A' 683 649 25.91      
9 A' 606 576 4.07      
10 A" 3280 3117 0.08      
11 A" 1819 1729 92.45      
12 A" 1472 1399 18.59      
13 A" 1116 1061 2.38      
14 A" 485 461 0.36      
15 A" 25 24 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11144.8 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 10592.0 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 MP2=FULL/cc-pVDZ
ABC
0.40275 0.35286 0.19515

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.319 0.000
N2 -0.013 0.172 0.000
H3 1.054 -1.632 0.000
H4 -0.499 -1.663 0.911
H5 -0.499 -1.663 -0.911
O6 0.002 0.729 -1.098
O7 0.002 0.729 1.098

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49091.09811.09501.09502.32352.3235
N21.49092.09582.10582.10581.23121.2312
H31.09812.09581.80071.80072.80822.8082
H41.09502.10581.80071.82213.16382.4513
H51.09502.10581.80071.82212.45133.1638
O62.32351.23122.80823.16382.45132.1958
O72.32351.23122.80822.45133.16382.1958

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 116.887 C1 N2 O7 116.887
N2 C1 H3 107.122 N2 C1 H4 108.069
N2 C1 H5 108.069 H3 C1 H4 110.381
H3 C1 H5 110.381 H4 C1 H5 112.609
O6 N2 O7 126.187
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability