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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: BLYP/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 BLYP/6-311G**
 hartrees
Energy at 0K-207.999693
Energy at 298.15K 
HF Energy-207.999693
Nuclear repulsion energy103.114497
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 BLYP/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' 3034 3022 20.77 90.74 0.61 0.76
2 A' 2946 2934 53.40 189.04 0.02 0.05
3 A' 2299 2290 809.77 1.25 0.00 0.01
4 A' 1466 1461 1.47 7.38 0.62 0.76
5 A' 1436 1431 18.43 11.25 0.70 0.82
6 A' 1407 1401 28.58 35.15 0.29 0.45
7 A' 1123 1118 14.94 2.57 0.63 0.77
8 A' 842 839 29.00 7.35 0.22 0.36
9 A' 613 610 22.63 0.54 0.72 0.84
10 A' 182 182 14.84 2.13 0.64 0.78
11 A" 2998 2986 29.43 86.78 0.75 0.86
12 A" 1470 1464 5.83 16.50 0.75 0.86
13 A" 1096 1092 0.02 2.37 0.75 0.86
14 A" 557 555 18.48 0.63 0.75 0.86
15 A" 58 58 1.99 0.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10762.7 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 10720.7 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 BLYP/6-311G**
ABC
2.54075 0.14328 0.13925

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.369 1.089 0.000
N2 0.000 0.598 0.000
C3 -0.567 -0.475 0.000
O4 -1.249 -1.444 0.000
H5 1.350 2.185 0.000
H6 1.913 0.751 0.895
H7 1.913 0.751 -0.895

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45482.48843.64291.09661.10051.1005
N21.45481.21262.39342.08412.11762.1176
C32.48841.21261.18563.27852.90722.9072
O43.64292.39341.18564.46403.95183.9518
H51.09662.08413.27854.46401.78191.7819
H61.10052.11762.90723.95181.78191.7905
H71.10052.11762.90723.95181.78191.7905

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.595 N2 C1 H5 108.736
N2 C1 H6 111.179 N2 C1 H7 111.179
N2 C3 O4 172.738 H5 C1 H6 108.393
H5 C1 H7 108.393 H6 C1 H7 108.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 N -0.344      
3 C 0.384      
4 O -0.244      
5 H 0.129      
6 H 0.124      
7 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.467 1.383 0.000 2.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.456 -0.461 0.000
y -0.461 -24.819 0.000
z 0.000 0.000 -22.679
Traceless
 xyz
x 1.293 -0.461 0.000
y -0.461 -2.251 0.000
z 0.000 0.000 0.958
Polar
3z2-r21.916
x2-y22.363
xy-0.461
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.878 1.984 0.000
y 1.984 5.591 0.000
z 0.000 0.000 3.065


<r2> (average value of r2) Å2
<r2> 84.514
(<r2>)1/2 9.193