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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B97D3/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B97D3/6-31G**
 hartrees
Energy at 0K-207.867152
Energy at 298.15K 
HF Energy-207.867152
Nuclear repulsion energy103.197742
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 B97D3/6-31G**
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' 3087 3087 21.96 86.78 0.65 0.79
2 A' 2985 2985 57.37 167.59 0.02 0.04
3 A' 2340 2340 760.30 1.16 0.02 0.03
4 A' 1487 1487 1.21 9.68 0.64 0.78
5 A' 1456 1456 13.13 14.72 0.64 0.78
6 A' 1432 1432 39.55 38.53 0.34 0.50
7 A' 1138 1138 14.84 3.30 0.65 0.79
8 A' 864 864 30.18 6.98 0.20 0.34
9 A' 604 604 21.62 0.65 0.73 0.84
10 A' 182 182 14.29 2.28 0.61 0.76
11 A" 3052 3052 29.44 79.23 0.75 0.86
12 A" 1488 1488 4.21 22.50 0.75 0.86
13 A" 1108 1108 0.02 3.43 0.75 0.86
14 A" 542 542 19.77 0.64 0.75 0.86
15 A" 58 58 2.21 0.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10910.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10910.9 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 B97D3/6-31G**
ABC
2.55059 0.14369 0.13965

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.360 1.091 0.000
N2 0.000 0.601 0.000
C3 -0.558 -0.478 0.000
O4 -1.245 -1.447 0.000
H5 1.341 2.186 0.000
H6 1.904 0.754 0.894
H7 1.904 0.754 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44532.47743.63721.09571.09941.0994
N21.44531.21482.39752.07592.10912.1091
C32.47741.21481.18863.27132.89422.8942
O43.63722.39751.18864.45993.94513.9451
H51.09572.07593.27134.45991.77991.7799
H61.09942.10912.89423.94511.77991.7875
H71.09942.10912.89423.94511.77991.7875

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.106 N2 C1 H5 108.790
N2 C1 H6 111.230 N2 C1 H7 111.230
N2 C3 O4 171.963 H5 C1 H6 108.363
H5 C1 H7 108.363 H6 C1 H7 108.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.198      
2 N -0.431      
3 C 0.595      
4 O -0.394      
5 H 0.146      
6 H 0.141      
7 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.454 1.359 0.000 2.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.913 -0.381 0.000
y -0.381 -24.248 0.000
z 0.000 0.000 -22.217
Traceless
 xyz
x 1.320 -0.381 0.000
y -0.381 -2.183 0.000
z 0.000 0.000 0.863
Polar
3z2-r21.726
x2-y22.335
xy-0.381
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.629 1.962 0.000
y 1.962 5.423 0.000
z 0.000 0.000 2.857


<r2> (average value of r2) Å2
<r2> 83.967
(<r2>)1/2 9.163