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All results from a given calculation for CH3NO (nitrosomethane)

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

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/6-31G**
 hartrees
Energy at 0K-169.344328
Energy at 298.15K-169.348009
HF Energy-168.830203
Nuclear repulsion energy69.990893
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/6-31G**
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' 3231 3042 11.20      
2 A' 3109 2927 3.72      
3 A' 1651 1554 43.00      
4 A' 1517 1428 16.62      
5 A' 1433 1349 10.55      
6 A' 1183 1113 13.86      
7 A' 886 834 11.84      
8 A' 583 549 2.19      
9 A" 3208 3020 8.58      
10 A" 1521 1431 7.23      
11 A" 1005 946 3.13      
12 A" 140 132 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 9732.5 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 9162.2 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/6-31G**
ABC
1.99179 0.38158 0.34057

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.955 -0.563 0.000
N2 0.000 0.582 0.000
O3 1.165 0.216 0.000
H4 -0.422 -1.512 0.000
H5 -1.584 -0.454 0.883
H6 -1.584 -0.454 -0.883

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.49092.25891.08841.09001.0900
N21.49091.22112.13552.08852.0885
O32.25891.22112.34592.96452.9645
H41.08842.13552.34591.80341.8034
H51.09002.08852.96451.80341.7665
H61.09002.08852.96451.80341.7665

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.413 N2 C1 H4 110.810
N2 C1 H5 107.010 N2 C1 H6 107.010
H4 C1 H5 111.758 H4 C1 H6 111.758
H5 C1 H6 108.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability