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

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 Os out of place 1A'
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-243.952992
Energy at 298.15K 
HF Energy-243.523363
Nuclear repulsion energy123.056612
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' 3263 3060 1.51      
2 A' 3162 2965 0.80      
3 A' 1566 1469 15.38      
4 A' 1520 1426 0.23      
5 A' 1409 1321 57.00      
6 A' 1216 1140 0.39      
7 A' 931 873 1.85      
8 A' 674 633 35.28      
9 A' 614 576 6.53      
10 A" 3293 3088 0.06      
11 A" 1620 1519 153.51      
12 A" 1554 1457 118.76      
13 A" 1172 1099 31.26      
14 A" 495 464 0.81      
15 A" 37 34 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11262.6 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 10562.0 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 CISD/6-31G
ABC
0.39455 0.34563 0.19096

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)
C1 0.002 -1.333 0.000
N2 -0.012 0.162 0.000
H3 1.045 -1.651 0.000
H4 -0.502 -1.665 0.903
H5 -0.502 -1.665 -0.903
O6 0.002 0.740 -1.111
O7 0.002 0.740 1.111

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49551.09001.08601.08602.35232.3523
N21.49552.09902.09582.09581.25231.2523
H31.09002.09901.79111.79112.83552.8355
H41.08602.09581.79111.80613.17702.4659
H51.08602.09581.79111.80612.46593.1770
O62.35231.25232.83553.17702.46592.2216
O72.35231.25232.83552.46593.17702.2216

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 117.482 C1 N2 O7 117.482
N2 C1 H3 107.518 N2 C1 H4 107.492
N2 C1 H5 107.492 H3 C1 H4 110.796
H3 C1 H5 110.796 H4 C1 H5 112.506
O6 N2 O7 124.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability