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

using model chemistry: MP2=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-242.756729
Energy at 298.15K 
HF Energy-242.246766
Nuclear repulsion energy119.647525
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/3-21G*
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' 3235 3067 3.02      
2 A' 3137 2974 2.03      
3 A' 1583 1500 10.68      
4 A' 1463 1387 1.84      
5 A' 1242 1178 30.66      
6 A' 1167 1106 0.51      
7 A' 830 787 3.11      
8 A' 603 572 26.44      
9 A' 525 498 2.61      
10 A" 3260 3090 0.28      
11 A" 1773 1681 5.44      
12 A" 1577 1495 10.76      
13 A" 1138 1078 0.18      
14 A" 424 402 0.43      
15 A" 28 26 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 10991.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 10420.3 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/3-21G*
ABC
0.36178 0.33662 0.18044

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.004 -1.355 0.000
N2 -0.016 0.163 0.000
H3 1.046 -1.674 0.000
H4 -0.507 -1.672 0.905
H5 -0.507 -1.672 -0.905
O6 0.004 0.750 -1.164
O7 0.004 0.750 1.164

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.51831.09011.08701.08702.40512.4051
N21.51832.12222.10492.10491.30341.3034
H31.09012.12221.79801.79802.88382.8838
H41.08702.10491.79801.81073.22652.4892
H51.08702.10491.79801.81072.48923.2265
O62.40511.30342.88383.22652.48922.3273
O72.40511.30342.88382.48923.22652.3273

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 116.738 C1 N2 O7 116.738
N2 C1 H3 107.772 N2 C1 H4 106.617
N2 C1 H5 106.617 H3 C1 H4 111.348
H3 C1 H5 111.348 H4 C1 H5 112.782
O6 N2 O7 126.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability