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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/6-311G**

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/6-311G**
 hartrees
Energy at 0K-207.879030
Energy at 298.15K 
HF Energy-207.640634
Nuclear repulsion energy103.905888
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/6-311G**
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' 3159 3159 16.60 80.74 0.65 0.79
2 A' 3059 3059 47.88 164.53 0.01 0.03
3 A' 2372 2372 899.07 0.87 0.02 0.04
4 A' 1519 1519 3.12 7.45 0.62 0.76
5 A' 1486 1486 16.26 10.47 0.62 0.76
6 A' 1465 1465 34.13 27.34 0.30 0.46
7 A' 1166 1166 17.21 2.53 0.58 0.74
8 A' 886 886 30.25 11.38 0.20 0.34
9 A' 643 643 26.69 0.44 0.64 0.78
10 A' 182 182 17.16 1.68 0.69 0.82
11 A" 3127 3127 23.81 72.40 0.75 0.86
12 A" 1524 1524 6.55 14.63 0.75 0.86
13 A" 1141 1141 0.04 2.02 0.75 0.86
14 A" 591 591 22.82 0.61 0.75 0.86
15 A" 63 63 2.20 1.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11191.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11191.5 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 B2PLYP=FULLultrafine/6-311G**
ABC
2.53433 0.14584 0.14159

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.366 1.069 0.000
N2 0.000 0.598 0.000
C3 -0.568 -0.465 0.000
O4 -1.243 -1.427 0.000
H5 1.359 2.157 0.000
H6 1.898 0.724 0.889
H7 1.898 0.724 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44492.46833.61081.08821.09171.0917
N21.44491.20512.37642.06842.09922.0992
C32.46831.20511.17573.25402.87782.8778
O43.61082.37641.17574.42953.90903.9090
H51.08822.06843.25404.42951.77031.7703
H61.09172.09922.87783.90901.77031.7781
H71.09172.09922.87783.90901.77031.7781

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.134 N2 C1 H5 108.667
N2 C1 H6 110.932 N2 C1 H7 110.932
N2 C3 O4 173.081 H5 C1 H6 108.603
H5 C1 H7 108.603 H6 C1 H7 109.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.164      
2 N -0.395      
3 C 0.449      
4 O -0.274      
5 H 0.131      
6 H 0.126      
7 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.542 1.370 0.000 2.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.396 -0.493 -0.014
y -0.493 -24.852 -0.006
z -0.014 -0.006 -22.595
Traceless
 xyz
x 1.327 -0.493 -0.014
y -0.493 -2.357 -0.006
z -0.014 -0.006 1.030
Polar
3z2-r22.059
x2-y22.456
xy-0.493
xz-0.014
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.639 1.918 0.002
y 1.918 5.460 0.000
z 0.002 0.000 2.950


<r2> (average value of r2) Å2
<r2> 83.317
(<r2>)1/2 9.128