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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: HSEh1PBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-207.850946
Energy at 298.15K 
HF Energy-207.850946
Nuclear repulsion energy104.427626
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/aug-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 A' 3138 3019 11.42 72.00 0.64 0.78
2 A' 3046 2930 45.12 225.79 0.01 0.03
3 A' 2407 2315 1152.63 2.70 0.02 0.05
4 A' 1535 1477 1.87 19.69 0.14 0.25
5 A' 1484 1428 11.77 12.16 0.50 0.66
6 A' 1454 1398 29.23 11.38 0.24 0.39
7 A' 1154 1110 17.51 0.54 0.75 0.85
8 A' 895 861 27.33 8.05 0.11 0.19
9 A' 649 624 29.73 0.58 0.49 0.66
10 A' 164 158 17.76 2.21 0.62 0.77
11 A" 3112 2993 15.60 71.36 0.75 0.86
12 A" 1501 1444 7.82 7.13 0.75 0.86
13 A" 1129 1086 0.02 0.19 0.75 0.86
14 A" 607 584 21.59 0.60 0.75 0.86
15 A" 43 41 1.93 0.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11159.2 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 10733.0 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/aug-cc-pVTZ
ABC
2.82515 0.14523 0.14182

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.302 1.151 0.000
N2 0.000 0.564 0.000
C3 -0.544 -0.498 0.000
O4 -1.186 -1.476 0.000
H5 1.206 2.235 0.000
H6 1.865 0.856 0.888
H7 1.865 0.856 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42842.47543.61811.08841.09151.0915
N21.42841.19332.35972.06062.08572.0857
C32.47541.19331.16983.24522.90222.9022
O43.61812.35971.16984.41493.94083.9408
H51.08842.06063.24524.41491.76761.7676
H61.09152.08572.90223.94081.76761.7756
H71.09152.08572.90223.94081.76761.7756

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 141.377 N2 C1 H5 109.169
N2 C1 H6 111.017 N2 C1 H7 111.017
N2 C3 O4 173.869 H5 C1 H6 108.358
H5 C1 H7 108.358 H6 C1 H7 108.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.413      
2 N 0.104      
3 C -0.183      
4 O -0.317      
5 H 0.276      
6 H 0.266      
7 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.454 1.696 0.000 2.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.667 -0.637 0.000
y -0.637 -24.902 0.000
z 0.000 0.000 -22.611
Traceless
 xyz
x 1.090 -0.637 0.000
y -0.637 -2.263 0.000
z 0.000 0.000 1.173
Polar
3z2-r22.346
x2-y22.235
xy-0.637
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.546 1.880 0.000
y 1.880 6.376 0.000
z 0.000 0.000 3.905


<r2> (average value of r2) Å2
<r2> 83.347
(<r2>)1/2 9.129