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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-169.517533
Energy at 298.15K-169.521237
HF Energy-168.893093
Nuclear repulsion energy70.512911
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/cc-pVTZ
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 3028 9.26      
2 A' 3058 2922 3.45      
3 A' 1663 1589 53.23      
4 A' 1480 1414 21.42      
5 A' 1401 1338 12.93      
6 A' 1173 1120 15.80      
7 A' 885 845 12.45      
8 A' 585 559 2.25      
9 A" 3148 3008 5.21      
10 A" 1483 1417 9.49      
11 A" 996 952 3.29      
12 A" 151 144 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 9595.2 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 9168.2 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/cc-pVTZ
ABC
2.04128 0.38519 0.34479

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.945 -0.570 0.000
N2 0.000 0.573 0.000
O3 1.154 0.231 0.000
H4 -0.410 -1.518 0.000
H5 -1.577 -0.461 0.881
H6 -1.577 -0.461 -0.881

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48282.24661.08831.08971.0897
N21.48281.20382.13062.08152.0815
O32.24661.20382.34632.95192.9519
H41.08832.13062.34631.80351.8035
H51.08972.08152.95191.80351.7627
H61.08972.08152.95191.80351.7627

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.074 N2 C1 H4 110.991
N2 C1 H5 107.030 N2 C1 H6 107.030
H4 C1 H5 111.792 H4 C1 H6 111.792
H5 C1 H6 107.953
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability