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

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-132.720186
Energy at 298.15K-132.722522
Nuclear repulsion energy59.699375
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 BLYP/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 2972 2963 17.42      
2 A1 2147 2140 104.43      
3 A1 1418 1413 4.59      
4 A1 912 909 9.88      
5 E 3034 3025 7.76      
5 E 3034 3025 7.75      
6 E 1455 1451 9.10      
6 E 1455 1451 9.10      
7 E 1116 1112 0.01      
7 E 1116 1112 0.01      
8 E 263 262 0.21      
8 E 263 262 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 9591.3 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 9562.5 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 BLYP/cc-pVTZ
ABC
5.25256 0.33178 0.33178

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.115
N2 0.000 0.000 0.314
C3 0.000 0.000 1.492
H4 0.000 1.030 -1.488
H5 0.892 -0.515 -1.488
H6 -0.892 -0.515 -1.488

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42892.60631.09571.09571.0957
N21.42891.17732.07562.07562.0756
C32.60631.17733.15233.15233.1523
H41.09572.07563.15231.78451.7845
H51.09572.07563.15231.78451.7845
H61.09572.07563.15231.78451.7845

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 109.898
N2 C1 H5 109.898 N2 C1 H6 109.898
H4 C1 H5 109.041 H4 C1 H6 109.041
H5 C1 H6 109.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.127      
2 N 0.071      
3 C -0.288      
4 H 0.115      
5 H 0.115      
6 H 0.115      


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 -3.891 3.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.970 0.000 0.000
y 0.000 -17.970 0.000
z 0.000 0.000 -21.755
Traceless
 xyz
x 1.893 0.000 0.000
y 0.000 1.893 0.000
z 0.000 0.000 -3.785
Polar
3z2-r2-7.570
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 3.474 0.000 0.000
y 0.000 3.474 0.000
z 0.000 0.000 6.081


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