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

using model chemistry: QCISD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-244.633402
Energy at 298.15K 
HF Energy-243.769268
Nuclear repulsion energy125.535065
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/Def2TZVPP
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' 3207 3207 1.69      
2 A' 3111 3111 1.60      
3 A' 1502 1502 11.37      
4 A' 1469 1469 72.99      
5 A' 1440 1440 4.85      
6 A' 1163 1163 0.54      
7 A' 958 958 5.91      
8 A' 683 683 25.86      
9 A' 626 626 5.79      
10 A" 3235 3235 0.25      
11 A" 1645 1645 352.47      
12 A" 1487 1487 46.89      
13 A" 1126 1126 18.69      
14 A" 486 486 1.00      
15 A" 28 28 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11082.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11082.8 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/Def2TZVPP
ABC
0.41421 0.35561 0.19851

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.316 0.000
N2 -0.011 0.173 0.000
H3 1.044 -1.618 0.000
H4 -0.493 -1.653 0.903
H5 -0.493 -1.653 -0.903
O6 0.001 0.726 -1.082
O7 0.001 0.726 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48951.08641.08301.08302.31092.3109
N21.48952.07902.09412.09411.21511.2151
H31.08642.07901.78341.78342.78472.7847
H41.08302.09411.78341.80573.13762.4365
H51.08302.09411.78341.80572.43653.1376
O62.31091.21512.78473.13762.43652.1644
O72.31091.21512.78472.43653.13762.1644

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 117.035 C1 N2 O7 117.035
N2 C1 H3 106.578 N2 C1 H4 107.937
N2 C1 H5 107.937 H3 C1 H4 110.582
H3 C1 H5 110.582 H4 C1 H5 112.950
O6 N2 O7 125.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability