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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: MP2=FULL/daug-cc-pVDZ

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=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-207.470808
Energy at 298.15K 
HF Energy-206.816634
Nuclear repulsion energy102.993359
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=FULL/daug-cc-pVDZ
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' 3195 3195 9.84 62.52 0.68 0.81
2 A' 3081 3081 49.06 206.21 0.01 0.02
3 A' 2333 2333 948.35 1.02 0.37 0.55
4 A' 1501 1501 5.63 4.04 0.43 0.60
5 A' 1459 1459 14.73 11.64 0.33 0.50
6 A' 1438 1438 34.45 25.01 0.19 0.32
7 A' 1154 1154 22.19 0.72 0.72 0.84
8 A' 886 886 24.04 20.12 0.12 0.22
9 A' 632 632 23.64 0.63 0.49 0.66
10 A' 186 186 19.38 2.31 0.63 0.78
11 A" 3171 3171 14.37 60.39 0.75 0.86
12 A" 1506 1506 6.29 6.71 0.75 0.86
13 A" 1134 1134 0.19 0.31 0.75 0.86
14 A" 575 575 14.05 0.42 0.75 0.86
15 A" 76 76 1.73 0.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11163.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11163.5 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 MP2=FULL/daug-cc-pVDZ
ABC
2.42197 0.14411 0.13967

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.384 1.058 0.000
N2 0.000 0.619 0.000
C3 -0.569 -0.463 0.000
O4 -1.262 -1.431 0.000
H5 1.396 2.153 0.000
H6 1.906 0.697 0.896
H7 1.906 0.697 -0.896

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45172.47543.63231.09521.09831.0983
N21.45171.22252.40672.07482.10772.1077
C32.47541.22251.18993.27252.87682.8768
O43.63232.40671.18994.46233.92023.9202
H51.09522.07483.27254.46231.78411.7841
H61.09832.10772.87683.92021.78411.7923
H71.09832.10772.87683.92021.78411.7923

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 135.359 N2 C1 H5 108.288
N2 C1 H6 110.726 N2 C1 H7 110.726
N2 C3 O4 172.121 H5 C1 H6 108.845
H5 C1 H7 108.845 H6 C1 H7 109.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability