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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: AM1

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at AM1
 hartrees
Energy at 0K 
Energy at 298.15K-0.022400
HF Energy-0.022355
Nuclear repulsion energy76.977557
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 AM1
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' 3094 2950 6.92 211.82 0.01 0.02
2 A' 3007 2867 9.23 166.05 0.73 0.85
3 A' 2428 2315 1207.06 4.03 0.03 0.05
4 A' 1661 1584 23.37 47.40 0.23 0.37
5 A' 1436 1369 18.19 41.15 0.57 0.72
6 A' 1360 1297 1.25 58.53 0.75 0.85
7 A' 1151 1097 18.21 17.37 0.23 0.38
8 A' 1073 1023 16.22 9.33 0.52 0.68
9 A' 644 614 18.83 2.53 0.75 0.85
10 A' 229 218 15.52 2.57 0.62 0.76
11 A" 2995 2855 0.00 150.87 0.75 0.86
12 A" 1359 1296 2.30 66.96 0.75 0.86
13 A" 1090 1039 6.86 1.62 0.75 0.86
14 A" 457 435 35.05 1.48 0.75 0.86
15 A" 98 93 6.73 3.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11039.5 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 10526.1 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 AM1
ABC
2.42567 0.14535 0.14099

See section I.F.4 to change rotational constant units
Geometric Data calculated at AM1

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.347 1.063 0.000
N2 0.000 0.631 0.000
C3 -0.512 -0.494 0.000
O4 -1.266 -1.430 0.000
H5 1.315 2.187 0.000
H6 1.902 0.715 0.914
H7 1.902 0.715 -0.914

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.41482.42523.61211.12411.12411.1241
N21.41481.23612.41902.03702.11152.1115
C32.42521.23611.20223.24422.85002.8500
O43.61212.41901.20224.44353.93353.9335
H51.12412.03703.24424.44351.82921.8292
H61.12412.11152.85003.93351.82921.8274
H71.12412.11152.85003.93351.82921.8274

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 132.259 N2 C1 H5 106.141
N2 C1 H6 112.027 N2 C1 H7 112.027
N2 C3 O4 165.607 H5 C1 H6 108.900
H5 C1 H7 108.900 H6 C1 H7 108.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability