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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: CCSD=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 CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-207.484230
Energy at 298.15K 
HF Energy-206.818650
Nuclear repulsion energy103.394343
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 CCSD=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' 3159 3159 13.82      
2 A' 3059 3059 46.62      
3 A' 2322 2322 1196.11      
4 A' 1506 1506 2.31      
5 A' 1474 1474 11.59      
6 A' 1451 1451 40.71      
7 A' 1156 1156 25.88      
8 A' 900 900 27.55      
9 A' 662 662 29.77      
10 A' 179 179 20.05      
11 A" 3135 3135 18.87      
12 A" 1507 1507 5.58      
13 A" 1134 1134 0.54      
14 A" 602 602 20.63      
15 A" 62 62 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 11154.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11154.0 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 CCSD=FULL/daug-cc-pVDZ
ABC
2.30391 0.14643 0.14144

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.406 1.008 0.000
N2 0.000 0.627 0.000
C3 -0.586 -0.438 0.000
O4 -1.277 -1.395 0.000
H5 1.467 2.103 0.000
H6 1.914 0.624 0.898
H7 1.914 0.624 -0.898

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45702.46173.60201.09731.10031.1003
N21.45701.21562.39172.08092.11422.1142
C32.46171.21561.18063.26672.86112.8611
O43.60202.39171.18064.44603.88163.8816
H51.09732.08093.26674.44601.78711.7871
H61.10032.11422.86113.88161.78711.7957
H71.10032.11422.86113.88161.78711.7957

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 133.977 N2 C1 H5 108.287
N2 C1 H6 110.751 N2 C1 H7 110.751
N2 C3 O4 173.038 H5 C1 H6 108.816
H5 C1 H7 108.816 H6 C1 H7 109.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability