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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD(TQ)/cc-pVDZ

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(TQ)/cc-pVDZ
 hartrees
Energy at 0K-169.375407
Energy at 298.15K-169.379050
HF Energy-168.840312
Nuclear repulsion energy69.765862
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(TQ)/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' 3169 3169        
2 A' 3044 3044        
3 A' 1613 1613        
4 A' 1448 1448        
5 A' 1365 1365        
6 A' 1142 1142        
7 A' 862 862        
8 A' 576 576        
9 A" 3149 3149        
10 A" 1453 1453        
11 A" 964 964        
12 A" 131 131        

Unscaled Zero Point Vibrational Energy (zpe) 9457.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9457.4 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(TQ)/cc-pVDZ
ABC
1.96749 0.37982 0.33900

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.953 -0.571 0.000
N2 0.000 0.584 0.000
O3 1.164 0.224 0.000
H4 -0.408 -1.532 0.000
H5 -1.593 -0.462 0.894
H6 -1.593 -0.462 -0.894

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49762.26111.10421.10541.1054
N21.49761.21842.15532.10572.1057
O32.26111.21842.35702.97882.9788
H41.10422.15532.35701.82971.8297
H51.10542.10572.97881.82971.7885
H61.10542.10572.97881.82971.7885

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.309 N2 C1 H4 110.959
N2 C1 H5 107.018 N2 C1 H6 107.018
H4 C1 H5 111.803 H4 C1 H6 111.803
H5 C1 H6 107.988
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability