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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: MP3/daug-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 MP3/daug-cc-pVTZ
 hartrees
Energy at 0K-207.633972
Energy at 298.15K 
HF Energy-206.872238
Nuclear repulsion energy104.488532
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 MP3/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP3/daug-cc-pVTZ
ABC
2.51554 0.14776 0.14333

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.372 1.048 0.000
N2 0.000 0.596 0.000
C3 -0.574 -0.454 0.000
O4 -1.244 -1.407 0.000
H5 1.382 2.132 0.000
H6 1.893 0.694 0.887
H7 1.893 0.694 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44402.45723.58741.08501.08791.0879
N21.44401.19652.35862.06612.09262.0926
C32.45721.19651.16593.24212.86142.8614
O43.58742.35861.16594.40753.87863.8786
H51.08502.06613.24214.40751.76571.7657
H61.08792.09262.86143.87861.76571.7739
H71.08792.09262.86143.87861.76571.7739

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 136.863 N2 C1 H5 108.733
N2 C1 H6 110.703 N2 C1 H7 110.703
N2 C3 O4 173.540 H5 C1 H6 108.705
H5 C1 H7 108.705 H6 C1 H7 109.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability