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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-207.773724
Energy at 298.15K 
HF Energy-207.773724
Nuclear repulsion energy103.969063
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3162 3018 14.84 84.18 0.67 0.80
2 A' 3059 2920 46.15 161.80 0.01 0.03
3 A' 2444 2332 969.37 2.19 0.08 0.14
4 A' 1549 1478 3.03 13.66 0.17 0.29
5 A' 1499 1431 8.66 24.94 0.64 0.78
6 A' 1470 1402 34.89 23.96 0.47 0.64
7 A' 1161 1108 15.23 2.57 0.63 0.77
8 A' 905 864 30.18 6.84 0.21 0.35
9 A' 627 598 29.22 0.50 0.69 0.82
10 A' 165 158 16.90 1.93 0.65 0.79
11 A" 3134 2990 19.70 75.31 0.75 0.86
12 A" 1515 1446 5.98 21.56 0.75 0.86
13 A" 1133 1081 0.02 2.68 0.75 0.86
14 A" 582 556 27.11 0.71 0.75 0.86
15 A" 47 45 2.87 1.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11225.4 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 10712.4 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 HSEh1PBE/6-31G**
ABC
2.82622 0.14392 0.14059

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.300 1.161 0.000
N2 0.000 0.568 0.000
C3 -0.538 -0.506 0.000
O4 -1.188 -1.488 0.000
H5 1.198 2.248 0.000
H6 1.868 0.871 0.890
H7 1.868 0.871 -0.890

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42862.48123.63401.09161.09491.0949
N21.42861.20102.37442.06322.09152.0915
C32.48121.20101.17773.25512.91182.9118
O43.63402.37441.17774.43263.96213.9621
H51.09162.06323.25514.43261.77111.7711
H61.09492.09152.91183.96211.77111.7790
H71.09492.09152.91183.96211.77111.7790

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 141.153 N2 C1 H5 109.169
N2 C1 H6 111.260 N2 C1 H7 111.260
N2 C3 O4 173.129 H5 C1 H6 108.192
H5 C1 H7 108.192 H6 C1 H7 108.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 N -0.460      
3 C 0.639      
4 O -0.418      
5 H 0.165      
6 H 0.159      
7 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.486 1.605 0.000 2.959
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.016 -0.419 0.000
y -0.419 -24.344 0.000
z 0.000 0.000 -22.225
Traceless
 xyz
x 1.268 -0.419 0.000
y -0.419 -2.223 0.000
z 0.000 0.000 0.955
Polar
3z2-r21.911
x2-y22.328
xy-0.419
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.324 1.874 0.000
y 1.874 5.431 0.000
z 0.000 0.000 2.804


<r2> (average value of r2) Å2
<r2> 83.605
(<r2>)1/2 9.144