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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: TPSSh/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at TPSSh/daug-cc-pVDZ
 hartrees
Energy at 0K-208.027974
Energy at 298.15K 
HF Energy-208.027974
Nuclear repulsion energy103.471441
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 TPSSh/daug-cc-pVDZ
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' 3130 3130 17.43 73.49 0.64 0.78
2 A' 3030 3030 53.40 225.31 0.01 0.03
3 A' 2332 2332 994.04 1.33 0.12 0.22
4 A' 1497 1497 1.76 4.60 0.27 0.43
5 A' 1465 1465 13.37 12.11 0.37 0.54
6 A' 1431 1431 34.45 20.22 0.19 0.32
7 A' 1146 1146 20.71 0.80 0.75 0.86
8 A' 876 876 28.16 10.16 0.11 0.20
9 A' 635 635 24.36 0.79 0.39 0.56
10 A' 185 185 16.36 2.38 0.59 0.75
11 A" 3100 3100 24.37 74.74 0.75 0.86
12 A" 1498 1498 5.43 7.71 0.75 0.86
13 A" 1119 1119 0.17 0.42 0.75 0.86
14 A" 576 576 16.53 0.57 0.75 0.86
15 A" 68 68 1.67 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11043.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11043.9 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 TPSSh/daug-cc-pVDZ
ABC
2.48921 0.14497 0.14069

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.374 1.067 0.000
N2 0.000 0.605 0.000
C3 -0.566 -0.466 0.000
O4 -1.252 -1.429 0.000
H5 1.367 2.161 0.000
H6 1.902 0.714 0.896
H7 1.902 0.714 -0.896

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44922.47213.62241.09461.09801.0980
N21.44921.21132.38822.07142.10492.1049
C32.47211.21131.18223.26172.87822.8782
O43.62242.38821.18224.44383.91663.9166
H51.09462.07143.26174.44381.78401.7840
H61.09802.10492.87823.91661.78401.7919
H71.09802.10492.87823.91661.78401.7919

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 136.429 N2 C1 H5 108.229
N2 C1 H6 110.695 N2 C1 H7 110.695
N2 C3 O4 172.378 H5 C1 H6 108.904
H5 C1 H7 108.904 H6 C1 H7 109.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.277      
2 N 0.267      
3 C -0.193      
4 O -0.888      
5 H -0.186      
6 H -0.139      
7 H -0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.518 1.423 0.000 2.892
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.874 1.928 0.000
y 1.928 6.401 0.000
z 0.000 0.000 4.031


<r2> (average value of r2) Å2
<r2> 83.851
(<r2>)1/2 9.157