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

using model chemistry: MP2=FULL/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-244.831508
Energy at 298.15K 
HF Energy-243.776809
Nuclear repulsion energy125.320892
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/aug-cc-pVQZ
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 3097 1.12      
2 A' 3129 2992 1.20      
3 A' 1503 1437 12.50      
4 A' 1437 1374 10.78      
5 A' 1426 1364 43.90      
6 A' 1152 1102 0.21      
7 A' 952 911 4.64      
8 A' 681 651 22.52      
9 A' 612 585 2.98      
10 A" 3265 3123 0.12      
11 A" 1756 1679 174.52      
12 A" 1495 1429 25.80      
13 A" 1131 1082 3.34      
14 A" 487 465 0.88      
15 A" 7i 7i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11127.8 cm-1
Scaled (by 0.9564) Zero Point Vibrational Energy (zpe) 10642.6 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/aug-cc-pVQZ
ABC
0.41061 0.35716 0.19809

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.311 0.000
N2 -0.011 0.166 0.000
H3 1.040 -1.616 0.000
H4 -0.491 -1.649 0.900
H5 -0.491 -1.649 -0.900
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
C11.47781.08281.07961.07962.30982.3098
N21.47782.06842.08242.08241.22341.2234
H31.08282.06841.77611.77612.78332.7833
H41.07962.08241.77611.79973.13612.4331
H51.07962.08241.77611.79972.43313.1361
O62.30981.22342.78333.13612.43312.1754
O72.30981.22342.78332.43313.13612.1754

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 117.234 C1 N2 O7 117.234
N2 C1 H3 106.749 N2 C1 H4 108.023
N2 C1 H5 108.023 H3 C1 H4 110.438
H3 C1 H5 110.438 H4 C1 H5 112.920
O6 N2 O7 125.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability