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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: CCSD=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-169.481300
Energy at 298.15K-169.485008
HF Energy-168.887295
Nuclear repulsion energy70.425187
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 CCSD=FULL/TZVP
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' 3183 3016 10.96      
2 A' 3070 2909 4.19      
3 A' 1665 1578 50.42      
4 A' 1490 1412 18.51      
5 A' 1429 1354 13.31      
6 A' 1184 1122 15.84      
7 A' 892 845 11.61      
8 A' 593 562 2.09      
9 A" 3165 2999 7.32      
10 A" 1489 1411 10.30      
11 A" 1011 958 5.49      
12 A" 147 139 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 9658.8 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 9151.7 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 CCSD=FULL/TZVP
ABC
2.03486 0.38423 0.34392

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.946 -0.571 0.000
N2 0.000 0.574 0.000
O3 1.156 0.231 0.000
H4 -0.414 -1.521 0.000
H5 -1.577 -0.463 0.883
H6 -1.577 -0.463 -0.883

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48512.24951.08941.09031.0903
N21.48511.20532.13582.08332.0833
O32.24951.20532.35262.95402.9540
H41.08942.13582.35261.80331.8033
H51.09032.08332.95401.80331.7657
H61.09032.08332.95401.80331.7657

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 113.051 N2 C1 H4 111.186
N2 C1 H5 106.981 N2 C1 H6 106.981
H4 C1 H5 111.653 H4 C1 H6 111.653
H5 C1 H6 108.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability