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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-169.530658
Energy at 298.15K-169.534371
HF Energy-168.895978
Nuclear repulsion energy70.494435
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/aug-cc-pVTZ
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' 3164 3045 8.47      
2 A' 3052 2938 3.20      
3 A' 1653 1591 58.07      
4 A' 1484 1428 23.59      
5 A' 1408 1355 13.51      
6 A' 1174 1130 15.32      
7 A' 887 853 12.53      
8 A' 586 564 2.17      
9 A" 3143 3025 3.98      
10 A" 1486 1430 10.37      
11 A" 999 961 3.38      
12 A" 155 149 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9594.9 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 9234.1 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/aug-cc-pVTZ
ABC
2.04654 0.38456 0.34449

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.946 -0.569 0.000
N2 0.000 0.571 0.000
O3 1.155 0.232 0.000
H4 -0.413 -1.519 0.000
H5 -1.577 -0.458 0.882
H6 -1.577 -0.458 -0.882

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48192.24881.08921.09051.0905
N21.48191.20422.13092.07972.0797
O32.24881.20422.35052.95292.9529
H41.08922.13092.35051.80551.8055
H51.09052.07972.95291.80551.7649
H61.09052.07972.95291.80551.7649

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.288 N2 C1 H4 111.028
N2 C1 H5 106.901 N2 C1 H6 106.901
H4 C1 H5 111.856 H4 C1 H6 111.856
H5 C1 H6 108.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability