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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/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 wB97X-D/6-31G
 hartrees
Energy at 0K-207.837866
Energy at 298.15K 
HF Energy-207.837866
Nuclear repulsion energy102.923136
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 wB97X-D/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' 3169 3169 15.56 94.23 0.69 0.81
2 A' 3066 3066 44.39 185.36 0.01 0.02
3 A' 2463 2463 957.72 13.31 0.22 0.36
4 A' 1549 1549 6.60 19.38 0.74 0.85
5 A' 1532 1532 28.51 8.64 0.75 0.85
6 A' 1506 1506 2.40 56.42 0.37 0.54
7 A' 1192 1192 4.98 1.71 0.70 0.82
8 A' 854 854 38.66 5.49 0.29 0.45
9 A' 533 533 33.30 0.59 0.48 0.65
10 A' 102 102 14.87 2.50 0.75 0.86
11 A" 3146 3146 19.62 83.54 0.75 0.86
12 A" 1554 1554 11.20 26.13 0.75 0.86
13 A" 1179 1179 0.00 1.50 0.75 0.86
14 A" 521 521 34.23 0.75 0.75 0.86
15 A" 49 49 9.01 2.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11206.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11206.8 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 wB97X-D/6-31G
ABC
4.31195 0.13425 0.13348

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.861 1.592 0.000
N2 0.000 0.458 0.000
C3 -0.350 -0.678 0.000
O4 -0.791 -1.798 0.000
H5 0.264 2.506 0.000
H6 1.498 1.594 0.889
H7 1.498 1.594 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42382.57353.77161.09151.09421.0942
N21.42381.18942.39132.06452.07962.0796
C32.57351.18941.20363.24293.06103.0610
O43.77162.39131.20364.43174.18764.1876
H51.09152.06453.24294.43171.77421.7742
H61.09422.07963.06104.18761.77421.7788
H71.09422.07963.06104.18761.77421.7788

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 159.920 N2 C1 H5 109.619
N2 C1 H6 110.679 N2 C1 H7 110.679
N2 C3 O4 175.674 H5 C1 H6 108.530
H5 C1 H7 108.530 H6 C1 H7 108.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.277      
2 N -0.360      
3 C 0.434      
4 O -0.400      
5 H 0.204      
6 H 0.199      
7 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.161 3.347 0.000 3.984
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.387 -0.534 0.000
y -0.534 -25.240 0.000
z 0.000 0.000 -22.320
Traceless
 xyz
x 1.393 -0.534 0.000
y -0.534 -2.887 0.000
z 0.000 0.000 1.494
Polar
3z2-r22.987
x2-y22.853
xy-0.534
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.140 1.515 0.000
y 1.515 6.432 0.000
z 0.000 0.000 2.520


<r2> (average value of r2) Å2
<r2> 87.568
(<r2>)1/2 9.358