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

using model chemistry: QCISD(T)/aug-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 QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-244.480279
Energy at 298.15K 
HF Energy-243.699483
Nuclear repulsion energy123.686625
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 QCISD(T)/aug-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' 3176 3105        
2 A' 3071 3003        
3 A' 1463 1430        
4 A' 1408 1377        
5 A' 1392 1361        
6 A' 1125 1100        
7 A' 918 897        
8 A' 656 641        
9 A' 591 578        
10 A" 3205 3134        
11 A" 1594 1558        
12 A" 1451 1419        
13 A" 1098 1074        
14 A" 472 462        
15 A" 27 26        

Unscaled Zero Point Vibrational Energy (zpe) 10822.2 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 10581.9 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 QCISD(T)/aug-cc-pVDZ
ABC
0.40086 0.34683 0.19293

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.333 0.000
N2 -0.010 0.172 0.000
H3 1.060 -1.638 0.000
H4 -0.502 -1.670 0.917
H5 -0.502 -1.670 -0.917
O6 0.001 0.736 -1.100
O7 0.001 0.736 1.100

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50431.10181.09841.09842.34282.3428
N21.50432.10212.11462.11461.23641.2364
H31.10182.10211.81091.81092.82222.8222
H41.09842.11461.81091.83323.17892.4641
H51.09842.11461.81091.83322.46413.1789
O62.34281.23642.82223.17892.46412.2003
O72.34281.23642.82222.46413.17892.2003

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 117.141 C1 N2 O7 117.141
N2 C1 H3 106.504 N2 C1 H4 107.654
N2 C1 H5 107.654 H3 C1 H4 110.789
H3 C1 H5 110.789 H4 C1 H5 113.130
O6 N2 O7 125.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability