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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: MP3=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at MP3=FULL/Def2TZVPP
 hartrees
Energy at 0K-207.702318
Energy at 298.15K 
HF Energy-206.878277
Nuclear repulsion energy104.748759
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 MP3=FULL/Def2TZVPP
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' 3191 3191 11.29      
2 A' 3096 3096 38.89      
3 A' 2416 2416 1362.20      
4 A' 1563 1563 2.51      
5 A' 1519 1519 10.13      
6 A' 1492 1492 37.56      
7 A' 1181 1181 24.07      
8 A' 915 915 29.44      
9 A' 680 680 36.00      
10 A' 164 164 21.49      
11 A" 3167 3167 15.05      
12 A" 1539 1539 6.74      
13 A" 1158 1158 0.29      
14 A" 632 632 26.88      
15 A" 42 42 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 11377.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11377.4 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 MP3=FULL/Def2TZVPP
ABC
2.57637 0.14804 0.14375

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 1.061 0.000
N2 0.000 0.589 0.000
C3 -0.570 -0.459 0.000
O4 -1.233 -1.414 0.000
H5 1.353 2.143 0.000
H6 1.886 0.717 0.884
H7 1.886 0.717 -0.884

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43912.45603.58411.08201.08501.0850
N21.43911.19242.35192.06102.08692.0869
C32.45601.19241.16293.23552.86302.8630
O43.58412.35191.16294.39803.87973.8797
H51.08202.06103.23554.39801.76011.7601
H61.08502.08692.86303.87971.76011.7680
H71.08502.08692.86303.87971.76011.7680

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.727 N2 C1 H5 108.851
N2 C1 H6 110.769 N2 C1 H7 110.769
N2 C3 O4 173.833 H5 C1 H6 108.633
H5 C1 H7 108.633 H6 C1 H7 109.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability