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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: MP2/aug-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 MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-207.691613
Energy at 298.15K 
HF Energy-206.882751
Nuclear repulsion energy103.957510
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 MP2/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2/aug-cc-pVQZ
ABC
2.59353 0.14556 0.14149

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.352 1.088 0.000
N2 0.000 0.595 0.000
C3 -0.559 -0.473 0.000
O4 -1.231 -1.441 0.000
H5 1.325 2.172 0.000
H6 1.883 0.751 0.886
H7 1.883 0.751 -0.886

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43932.46813.61561.08391.08681.0868
N21.43931.20562.37952.05982.08692.0869
C32.46811.20561.17853.24762.87192.8719
O43.61562.37951.17854.42613.91003.9100
H51.08392.05983.24764.42611.76511.7651
H61.08682.08692.87193.91001.76511.7725
H71.08682.08692.87193.91001.76511.7725

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.686 N2 C1 H5 108.628
N2 C1 H6 110.631 N2 C1 H7 110.631
N2 C3 O4 172.886 H5 C1 H6 108.816
H5 C1 H7 108.816 H6 C1 H7 109.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability