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

using model chemistry: LSDA/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at LSDA/cc-pVDZ
 hartrees
Energy at 0K-131.958801
Energy at 298.15K-131.961196
Nuclear repulsion energy59.918469
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 LSDA/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 A1 2976 2943 10.48      
2 A1 2210 2185 77.64      
3 A1 1359 1344 0.45      
4 A1 1007 996 3.63      
5 E 3067 3033 0.67      
5 E 3067 3033 0.67      
6 E 1386 1370 14.01      
6 E 1386 1370 14.01      
7 E 1070 1058 1.40      
7 E 1070 1058 1.39      
8 E 288 285 0.10      
8 E 288 285 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 9585.7 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 9480.2 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 LSDA/cc-pVDZ
ABC
5.16517 0.33703 0.33703

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.096
N2 0.000 0.000 0.302
C3 0.000 0.000 1.486
H4 0.000 1.039 -1.485
H5 0.900 -0.519 -1.485
H6 -0.900 -0.519 -1.485

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.39862.58211.10931.10931.1093
N21.39861.18352.06742.06742.0674
C32.58211.18353.14733.14733.1473
H41.10932.06743.14731.79951.7995
H51.10932.06743.14731.79951.7995
H61.10932.06743.14731.79951.7995

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 110.515
N2 C1 H5 110.515 N2 C1 H6 110.515
H4 C1 H5 108.408 H4 C1 H6 108.408
H5 C1 H6 108.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 N -0.001      
3 C -0.234      
4 H 0.113      
5 H 0.113      
6 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.913 3.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.528 0.000 0.000
y 0.000 -17.528 0.000
z 0.000 0.000 -21.398
Traceless
 xyz
x 1.935 0.000 0.000
y 0.000 1.935 0.000
z 0.000 0.000 -3.870
Polar
3z2-r2-7.740
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.996 0.000 0.000
y 0.000 2.996 0.000
z 0.000 0.000 5.774


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000