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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-169.356153
Energy at 298.15K-169.359844
HF Energy-168.836174
Nuclear repulsion energy70.002144
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/6-31+G**
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' 3222 3046 9.77      
2 A' 3100 2931 3.97      
3 A' 1640 1551 56.30      
4 A' 1508 1426 23.44      
5 A' 1431 1353 14.61      
6 A' 1182 1118 15.33      
7 A' 894 845 11.60      
8 A' 584 552 2.08      
9 A" 3201 3026 5.75      
10 A" 1508 1425 10.76      
11 A" 1006 951 5.31      
12 A" 143 135 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 9709.5 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 9179.4 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/6-31+G**
ABC
2.00995 0.38048 0.34025

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.957 -0.563 0.000
N2 0.000 0.577 0.000
O3 1.167 0.218 0.000
H4 -0.429 -1.516 0.000
H5 -1.585 -0.446 0.884
H6 -1.585 -0.446 -0.884

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48762.26291.08931.09061.0906
N21.48761.22092.13572.08262.0826
O32.26291.22092.35692.96572.9657
H41.08932.13572.35691.80601.8060
H51.09062.08262.96571.80601.7678
H61.09062.08262.96571.80601.7678

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.965 N2 C1 H4 111.006
N2 C1 H5 106.748 N2 C1 H6 106.748
H4 C1 H5 111.889 H4 C1 H6 111.889
H5 C1 H6 108.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability