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

using model chemistry: MP2=FULL/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-132.506985
Energy at 298.15K-132.509375
HF Energy-131.942959
Nuclear repulsion energy60.158907
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/aug-cc-pVTZ
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 3110 2959 13.30      
2 A1 2179 2073 83.11      
3 A1 1468 1397 4.16      
4 A1 980 932 15.69      
5 E 3196 3041 1.63      
5 E 3196 3041 1.63      
6 E 1526 1452 11.44      
6 E 1526 1452 11.44      
7 E 1160 1103 0.11      
7 E 1160 1103 0.11      
8 E 271 258 0.03      
8 E 271 258 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 10021.7 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 9534.7 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/aug-cc-pVTZ
ABC
5.33219 0.33714 0.33714

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.106
N2 0.000 0.000 0.308
C3 0.000 0.000 1.479
H4 0.000 1.023 -1.465
H5 0.886 -0.511 -1.465
H6 -0.886 -0.511 -1.465

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.41442.58541.08401.08401.0840
N21.41441.17102.04712.04712.0471
C32.58541.17103.11693.11693.1169
H41.08402.04713.11691.77171.7717
H51.08402.04713.11691.77171.7717
H61.08402.04713.11691.77171.7717

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 109.329
N2 C1 H5 109.329 N2 C1 H6 109.329
H4 C1 H5 109.613 H4 C1 H6 109.613
H5 C1 H6 109.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability