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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: QCISD/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 QCISD/daug-cc-pVTZ
 hartrees
Energy at 0K-207.643530
Energy at 298.15K 
HF Energy-206.871076
Nuclear repulsion energy104.129898
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/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/daug-cc-pVTZ
ABC
2.45340 0.14725 0.14266

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.381 1.038 0.000
N2 0.000 0.606 0.000
C3 -0.576 -0.448 0.000
O4 -1.253 -1.407 0.000
H5 1.403 2.124 0.000
H6 1.897 0.676 0.889
H7 1.897 0.676 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44662.45753.59371.08661.08961.0896
N21.44661.20192.37152.06732.09602.0960
C32.45751.20191.17343.24622.85872.8587
O43.59372.37151.17344.41893.87983.8798
H51.08662.06733.24624.41891.76941.7694
H61.08962.09602.85873.87981.76941.7772
H71.08962.09602.85873.87981.76941.7772

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 136.015 N2 C1 H5 108.555
N2 C1 H6 110.688 N2 C1 H7 110.688
N2 C3 O4 173.438 H5 C1 H6 108.792
H5 C1 H7 108.792 H6 C1 H7 109.279
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability