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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD(T)/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)/cc-pVDZ
 hartrees
Energy at 0K-169.375069
Energy at 298.15K-169.378697
HF Energy-168.840144
Nuclear repulsion energy69.714440
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)/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' 3168 3019        
2 A' 3042 2899        
3 A' 1604 1529        
4 A' 1446 1378        
5 A' 1362 1298        
6 A' 1139 1086        
7 A' 851 811        
8 A' 573 546        
9 A" 3148 3000        
10 A" 1454 1386        
11 A" 960 915        
12 A" 126 120        

Unscaled Zero Point Vibrational Energy (zpe) 9435.7 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 8993.2 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 QCISD(T)/cc-pVDZ
ABC
1.96598 0.37903 0.33834

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.954 -0.573 0.000
N2 0.000 0.585 0.000
O3 1.165 0.226 0.000
H4 -0.408 -1.533 0.000
H5 -1.594 -0.464 0.895
H6 -1.594 -0.464 -0.895

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49992.26371.10441.10551.1055
N21.49991.21882.15652.10732.1073
O32.26371.21882.35872.98082.9808
H41.10442.15652.35871.83051.8305
H51.10552.10732.98081.83051.7891
H61.10552.10732.98081.83051.7891

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.335 N2 C1 H4 110.887
N2 C1 H5 106.984 N2 C1 H6 106.984
H4 C1 H5 111.852 H4 C1 H6 111.852
H5 C1 H6 108.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability