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

using model chemistry: CCSD(T)/TZVP

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 CCSD(T)/TZVP
 hartrees
Energy at 0K-244.527783
Energy at 298.15K 
HF Energy-243.743567
Nuclear repulsion energy124.268753
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 CCSD(T)/TZVP
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' 3197 3077        
2 A' 3095 2979        
3 A' 1494 1438        
4 A' 1445 1390        
5 A' 1392 1340        
6 A' 1153 1110        
7 A' 926 892        
8 A' 663 638        
9 A' 589 567        
10 A" 3223 3103        
11 A" 1604 1543        
12 A" 1488 1432        
13 A" 1130 1088        
14 A" 480 462        
15 A" 29 28        

Unscaled Zero Point Vibrational Energy (zpe) 10954.0 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 10543.2 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 CCSD(T)/TZVP
ABC
0.40585 0.34847 0.19445

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -1.330 0.000
N2 -0.013 0.171 0.000
H3 1.049 -1.633 0.000
H4 -0.497 -1.666 0.905
H5 -0.497 -1.666 -0.905
O6 0.002 0.734 -1.094
O7 0.002 0.734 1.094

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.50171.09001.08671.08672.33612.3361
N21.50172.09382.10462.10461.23011.2301
H31.09002.09381.79191.79192.80992.8099
H41.08672.10461.79191.81003.16302.4586
H51.08672.10461.79191.81002.45863.1630
O62.33611.23012.80993.16302.45862.1877
O72.33611.23012.80992.45863.16302.1877

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 117.206 C1 N2 O7 117.206
N2 C1 H3 106.702 N2 C1 H4 107.719
N2 C1 H5 107.719 H3 C1 H4 110.819
H3 C1 H5 110.819 H4 C1 H5 112.775
O6 N2 O7 125.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability