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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: CCD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-207.468947
Energy at 298.15K 
HF Energy-206.839410
Nuclear repulsion energy104.166527
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 CCD/6-311G*
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' 3165 3023 16.07      
2 A' 3062 2924 42.71      
3 A' 2411 2302 1185.46      
4 A' 1544 1475 3.81      
5 A' 1515 1447 11.29      
6 A' 1497 1430 34.89      
7 A' 1173 1121 21.86      
8 A' 915 874 31.75      
9 A' 671 640 33.92      
10 A' 168 161 21.56      
11 A" 3137 2996 22.15      
12 A" 1541 1472 7.51      
13 A" 1152 1100 0.14      
14 A" 617 590 29.09      
15 A" 52 50 2.45      

Unscaled Zero Point Vibrational Energy (zpe) 11309.7 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 10801.9 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 CCD/6-311G*
ABC
2.43767 0.14748 0.14285

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.384 1.033 0.000
N2 0.000 0.606 0.000
C3 -0.580 -0.447 0.000
O4 -1.255 -1.401 0.000
H5 1.409 2.123 0.000
H6 1.903 0.669 0.892
H7 1.903 0.669 -0.892

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44802.45883.58961.09101.09451.0945
N21.44801.20222.36702.07122.10272.1027
C32.45881.20221.16863.25062.86482.8648
O43.58962.36701.16864.41843.88003.8800
H51.09102.07123.25064.41841.77611.7761
H61.09452.10272.86483.88001.77611.7841
H71.09452.10272.86483.88001.77611.7841

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 135.986 N2 C1 H5 108.509
N2 C1 H6 110.828 N2 C1 H7 110.828
N2 C3 O4 173.556 H5 C1 H6 108.718
H5 C1 H7 108.718 H6 C1 H7 109.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability