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

using model chemistry: MP3/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 MP3/cc-pVDZ
 hartrees
Energy at 0K-244.373517
Energy at 298.15K 
HF Energy-243.681697
Nuclear repulsion energy125.466625
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 MP3/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' 3241 3072 1.45      
2 A' 3134 2971 1.31      
3 A' 1537 1457 87.48      
4 A' 1485 1408 12.66      
5 A' 1425 1351 1.56      
6 A' 1149 1089 1.08      
7 A' 993 941 10.34      
8 A' 704 668 30.48      
9 A' 629 597 6.46      
10 A" 3271 3101 0.24      
11 A" 1832 1737 306.90      
12 A" 1473 1397 23.83      
13 A" 1127 1068 10.54      
14 A" 498 472 0.69      
15 A" 40 38 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11269.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 10682.4 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 MP3/cc-pVDZ
ABC
0.41430 0.35516 0.19856

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.315 0.000
N2 -0.013 0.175 0.000
H3 1.056 -1.626 0.000
H4 -0.499 -1.659 0.912
H5 -0.499 -1.659 -0.912
O6 0.001 0.725 -1.081
O7 0.001 0.725 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49041.09991.09611.09612.30912.3091
N21.49042.09512.10602.10601.21301.2130
H31.09992.09511.80341.80342.79502.7950
H41.09612.10601.80341.82483.14822.4426
H51.09612.10601.80341.82482.44263.1482
O62.30911.21302.79503.14822.44262.1620
O72.30911.21302.79502.44263.14822.1620

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 116.955 C1 N2 O7 116.955
N2 C1 H3 106.996 N2 C1 H4 108.051
N2 C1 H5 108.051 H3 C1 H4 110.415
H3 C1 H5 110.415 H4 C1 H5 112.692
O6 N2 O7 126.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability