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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: QCISD(T)=FULL/cc-pVQZ

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(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-207.845687
Energy at 298.15K 
HF Energy-206.883154
Nuclear repulsion energy104.235051
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(T)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/cc-pVQZ
ABC
2.55807 0.14671 0.14246

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.360 1.069 0.000
N2 0.000 0.596 0.000
C3 -0.565 -0.464 0.000
O4 -1.237 -1.425 0.000
H5 1.351 2.153 0.000
H6 1.888 0.724 0.886
H7 1.888 0.724 -0.886

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43982.46043.60071.08421.08701.0870
N21.43981.20092.36982.06112.08922.0892
C32.46041.20091.17323.24282.86562.8656
O43.60072.36981.17324.41583.89503.8950
H51.08422.06113.24284.41581.76451.7645
H61.08702.08922.86563.89501.76451.7716
H71.08702.08922.86563.89501.76451.7716

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.221 N2 C1 H5 108.667
N2 C1 H6 110.770 N2 C1 H7 110.770
N2 C3 O4 173.091 H5 C1 H6 108.716
H5 C1 H7 108.716 H6 C1 H7 109.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability