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All results from a given calculation for CH3NO (nitrosomethane)

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 1A'
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-169.415133
Energy at 298.15K-169.418796
HF Energy-168.853432
Nuclear repulsion energy69.569388
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' 3142 3072        
2 A' 3019 2952        
3 A' 1571 1536        
4 A' 1438 1406        
5 A' 1358 1328        
6 A' 1140 1115        
7 A' 855 836        
8 A' 567 555        
9 A" 3118 3049        
10 A" 1442 1410        
11 A" 964 943        
12 A" 147 144        

Unscaled Zero Point Vibrational Energy (zpe) 9381.0 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 9172.8 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(T)/aug-cc-pVDZ
ABC
1.97270 0.37661 0.33659

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 -0.959 -0.570 0.000
N2 0.000 0.582 0.000
O3 1.171 0.223 0.000
H4 -0.419 -1.533 0.000
H5 -1.597 -0.452 0.894
H6 -1.597 -0.452 -0.894

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49902.27291.10331.10481.1048
N21.49901.22442.15542.10192.1019
O32.27291.22442.36862.98592.9859
H41.10332.15542.36861.83171.8317
H51.10482.10192.98591.83171.7884
H61.10482.10192.98591.83171.7884

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.748 N2 C1 H4 110.926
N2 C1 H5 106.669 N2 C1 H6 106.669
H4 C1 H5 112.103 H4 C1 H6 112.103
H5 C1 H6 108.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability