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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-207.941522
Energy at 298.15K 
HF Energy-207.672386
Nuclear repulsion energy104.086440
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 B2PLYP=FULLultrafine/Def2TZVPP
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' 3158 3158 12.86 73.05 0.64 0.78
2 A' 3063 3063 44.61 187.34 0.01 0.02
3 A' 2354 2354 979.14 1.28 0.02 0.03
4 A' 1519 1519 2.65 4.99 0.52 0.68
5 A' 1486 1486 17.59 9.61 0.51 0.67
6 A' 1462 1462 30.28 26.10 0.22 0.37
7 A' 1167 1167 18.81 1.58 0.68 0.81
8 A' 880 880 28.42 11.60 0.15 0.27
9 A' 644 644 27.67 0.43 0.75 0.86
10 A' 177 177 17.54 1.95 0.68 0.81
11 A" 3130 3130 17.39 66.78 0.75 0.86
12 A" 1523 1523 6.48 10.85 0.75 0.86
13 A" 1143 1143 0.10 1.08 0.75 0.86
14 A" 595 595 20.45 0.53 0.75 0.86
15 A" 47 47 1.86 0.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11174.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11174.4 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 B2PLYP=FULLultrafine/Def2TZVPP
ABC
2.61856 0.14567 0.14167

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.350 1.092 0.000
N2 0.000 0.588 0.000
C3 -0.562 -0.473 0.000
O4 -1.227 -1.441 0.000
H5 1.318 2.176 0.000
H6 1.887 0.760 0.886
H7 1.887 0.760 -0.886

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44052.47033.61371.08461.08781.0878
N21.44051.20082.37212.06352.09132.0913
C32.47031.20081.17523.24822.88102.8810
O43.61372.37211.17524.42333.91513.9151
H51.08462.06353.24824.42331.76441.7644
H61.08782.09132.88103.91511.76441.7720
H71.08782.09132.88103.91511.76441.7720

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.359 N2 C1 H5 108.790
N2 C1 H6 110.840 N2 C1 H7 110.840
N2 C3 O4 173.416 H5 C1 H6 108.621
H5 C1 H7 108.621 H6 C1 H7 109.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 N -0.238      
3 C 0.277      
4 O -0.250      
5 H 0.117      
6 H 0.110      
7 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.526 1.524 0.000 2.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.687 -0.563 -0.013
y -0.563 -25.018 -0.007
z -0.013 -0.007 -22.764
Traceless
 xyz
x 1.204 -0.563 -0.013
y -0.563 -2.293 -0.007
z -0.013 -0.007 1.089
Polar
3z2-r22.177
x2-y22.332
xy-0.563
xz-0.013
yz-0.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.196 1.940 0.002
y 1.940 6.027 0.000
z 0.002 0.000 3.503


<r2> (average value of r2) Å2
<r2> 83.404
(<r2>)1/2 9.133