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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-168.627161
Energy at 298.15K-168.630733
HF Energy-168.505127
Nuclear repulsion energy67.960956
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 B2PLYP=FULL/3-21G
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' 3196 3042 7.18      
2 A' 3081 2934 0.84      
3 A' 1545 1471 15.43      
4 A' 1415 1347 8.75      
5 A' 1253 1193 16.60      
6 A' 1117 1063 21.21      
7 A' 763 726 19.34      
8 A' 539 513 1.49      
9 A" 3165 3013 5.18      
10 A" 1545 1471 12.48      
11 A" 991 943 0.63      
12 A" 128 122 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 9368.1 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 8918.4 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 B2PLYP=FULL/3-21G
ABC
1.82829 0.36450 0.32240

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.994 -0.555 0.000
N2 0.000 0.614 0.000
O3 1.206 0.176 0.000
H4 -0.447 -1.497 0.000
H5 -1.619 -0.441 0.888
H6 -1.619 -0.441 -0.888

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.53402.31801.08921.09201.0920
N21.53401.28282.15712.12642.1264
O32.31801.28282.35143.02453.0245
H41.08922.15712.35141.81011.8101
H51.09202.12643.02451.81011.7768
H61.09202.12643.02451.81011.7768

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.436 N2 C1 H4 109.466
N2 C1 H5 106.937 N2 C1 H6 106.937
H4 C1 H5 112.173 H4 C1 H6 112.173
H5 C1 H6 108.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability