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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-207.993044
Energy at 298.15K 
HF Energy-207.993044
Nuclear repulsion energy104.485835
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/6-311+G(3df,2p)
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' 3144 3144 12.33 66.85 0.65 0.79
2 A' 3048 3048 44.10 189.50 0.01 0.02
3 A' 2404 2404 1221.40 1.84 0.02 0.05
4 A' 1539 1539 2.12 14.86 0.14 0.25
5 A' 1497 1497 12.21 12.50 0.48 0.65
6 A' 1470 1470 29.99 8.36 0.26 0.41
7 A' 1163 1163 18.06 0.65 0.73 0.84
8 A' 899 899 28.20 9.46 0.10 0.19
9 A' 659 659 31.82 0.51 0.50 0.67
10 A' 166 166 18.15 1.96 0.66 0.80
11 A" 3118 3118 16.13 63.69 0.75 0.86
12 A" 1515 1515 8.35 6.94 0.75 0.86
13 A" 1140 1140 0.07 0.28 0.75 0.86
14 A" 616 616 24.21 0.52 0.75 0.86
15 A" 49 49 1.93 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11213.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11213.8 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/6-311+G(3df,2p)
ABC
2.70868 0.14618 0.14241

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.330 1.113 0.000
N2 0.000 0.574 0.000
C3 -0.558 -0.481 0.000
O4 -1.208 -1.450 0.000
H5 1.272 2.198 0.000
H6 1.878 0.795 0.888
H7 1.878 0.795 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43482.47043.60661.08721.09031.0903
N21.43481.19362.35732.06322.08862.0886
C32.47041.19361.16693.24472.88922.8892
O43.60662.35731.16694.41163.91773.9177
H51.08722.06323.24474.41161.76731.7673
H61.09032.08862.88923.91771.76731.7752
H71.09032.08862.88923.91771.76731.7752

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.895 N2 C1 H5 109.009
N2 C1 H6 110.877 N2 C1 H7 110.877
N2 C3 O4 174.005 H5 C1 H6 108.509
H5 C1 H7 108.509 H6 C1 H7 108.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.025      
2 N -0.898      
3 C 1.109      
4 O -0.623      
5 H 0.139      
6 H 0.149      
7 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.521 1.598 0.000 2.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.563 -0.655 0.000
y -0.655 -24.930 0.000
z 0.000 0.000 -22.558
Traceless
 xyz
x 1.181 -0.655 0.000
y -0.655 -2.370 0.000
z 0.000 0.000 1.189
Polar
3z2-r22.378
x2-y22.368
xy-0.655
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.441 1.861 0.000
y 1.861 6.229 0.000
z 0.000 0.000 3.805


<r2> (average value of r2) Å2
<r2> 83.021
(<r2>)1/2 9.112