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All results from a given calculation for CH3NC (methyl isocyanide)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-132.397191
Energy at 298.15K-132.399586
HF Energy-131.920983
Nuclear repulsion energy59.789315
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/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 A1 3113 2948 13.95      
2 A1 2166 2052 72.51      
3 A1 1494 1415 1.84      
4 A1 977 925 19.22      
5 E 3214 3044 4.33      
5 E 3214 3044 4.33      
6 E 1534 1453 12.76      
6 E 1534 1453 12.76      
7 E 1172 1110 0.01      
7 E 1172 1110 0.01      
8 E 276 261 0.25      
8 E 276 261 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 10069.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 9537.1 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 MP2=FULL/6-311G*
ABC
5.28241 0.33286 0.33286

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.114
N2 0.000 0.000 0.309
C3 0.000 0.000 1.491
H4 0.000 1.027 -1.476
H5 0.890 -0.514 -1.476
H6 -0.890 -0.514 -1.476

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42362.60581.08911.08911.0891
N21.42361.18222.05962.05962.0596
C32.60581.18223.14023.14023.1402
H41.08912.05963.14021.77951.7795
H51.08912.05963.14021.77951.7795
H61.08912.05963.14021.77951.7795

picture of methyl isocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 180.000 N2 C1 H4 109.388
N2 C1 H5 109.388 N2 C1 H6 109.388
H4 C1 H5 109.554 H4 C1 H6 109.554
H5 C1 H6 109.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability