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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: PBE1PBE/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 PBE1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-207.782506
Energy at 298.15K 
HF Energy-207.782506
Nuclear repulsion energy103.990182
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 PBE1PBE/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' 3157 3157 11.81 70.86 0.66 0.80
2 A' 3052 3052 48.32 224.76 0.01 0.03
3 A' 2396 2396 1109.40 1.99 0.04 0.08
4 A' 1523 1523 3.05 18.58 0.14 0.24
5 A' 1463 1463 11.24 11.06 0.53 0.69
6 A' 1432 1432 28.70 9.40 0.26 0.41
7 A' 1143 1143 18.01 0.57 0.73 0.85
8 A' 907 907 26.51 9.12 0.10 0.19
9 A' 649 649 28.08 0.71 0.41 0.59
10 A' 176 176 17.69 2.33 0.60 0.75
11 A" 3129 3129 16.77 71.12 0.75 0.86
12 A" 1480 1480 7.62 7.19 0.75 0.86
13 A" 1118 1118 0.01 0.26 0.75 0.86
14 A" 599 599 20.33 0.61 0.75 0.86
15 A" 63 63 1.74 0.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11143.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11143.5 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 PBE1PBE/daug-cc-pVDZ
ABC
2.60645 0.14564 0.14167

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.343 1.096 0.000
N2 0.000 0.590 0.000
C3 -0.559 -0.476 0.000
O4 -1.224 -1.446 0.000
H5 1.308 2.190 0.000
H6 1.888 0.765 0.894
H7 1.888 0.765 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43482.46723.61161.09471.09801.0980
N21.43481.20392.37492.06682.09622.0962
C32.46721.20391.17523.25502.88552.8855
O43.61162.37491.17524.43023.92003.9200
H51.09472.06683.25504.43021.77921.7792
H61.09802.09622.88553.92001.77921.7875
H71.09802.09622.88553.92001.77921.7875

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.291 N2 C1 H5 108.837
N2 C1 H6 111.009 N2 C1 H7 111.009
N2 C3 O4 173.198 H5 C1 H6 108.468
H5 C1 H7 108.468 H6 C1 H7 108.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.328      
2 N 0.220      
3 C -0.119      
4 O -0.933      
5 H -0.193      
6 H -0.151      
7 H -0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.487 1.513 0.000 2.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.690 -0.578 0.000
y -0.578 -24.990 0.000
z 0.000 0.000 -22.754
Traceless
 xyz
x 1.182 -0.578 0.000
y -0.578 -2.268 0.000
z 0.000 0.000 1.086
Polar
3z2-r22.172
x2-y22.300
xy-0.578
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.702 1.885 0.000
y 1.885 6.356 0.000
z 0.000 0.000 3.973


<r2> (average value of r2) Å2
<r2> 83.453
(<r2>)1/2 9.135