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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-208.053193
Energy at 298.15K 
HF Energy-208.053193
Nuclear repulsion energy103.843390
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/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3126 3126 20.55 85.00 0.64 0.78
2 A' 3029 3029 50.15 177.59 0.02 0.03
3 A' 2372 2372 940.54 1.28 0.01 0.01
4 A' 1516 1516 1.94 7.25 0.56 0.72
5 A' 1485 1485 13.48 12.87 0.55 0.71
6 A' 1454 1454 36.64 27.68 0.32 0.49
7 A' 1156 1156 17.89 2.70 0.61 0.76
8 A' 874 874 32.53 8.28 0.20 0.33
9 A' 635 635 26.34 0.47 0.68 0.81
10 A' 179 179 16.54 1.85 0.67 0.80
11 A" 3093 3093 29.06 79.33 0.75 0.86
12 A" 1520 1520 5.63 15.28 0.75 0.86
13 A" 1128 1128 0.03 2.29 0.75 0.86
14 A" 583 583 22.89 0.62 0.75 0.86
15 A" 55 55 2.38 0.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11103.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11103.3 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/6-311G**
ABC
2.60287 0.14505 0.14107

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.355 1.092 0.000
N2 0.000 0.589 0.000
C3 -0.561 -0.476 0.000
O4 -1.234 -1.440 0.000
H5 1.319 2.182 0.000
H6 1.894 0.759 0.891
H7 1.894 0.759 -0.891

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44552.47623.62171.08981.09361.0936
N21.44551.20372.37502.06792.09992.0999
C32.47621.20371.17593.25542.88892.8889
O43.62172.37501.17594.43133.92583.9258
H51.08982.06793.25544.43131.77451.7745
H61.09362.09992.88893.92581.77451.7828
H71.09362.09992.88893.92581.77451.7828

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.170 N2 C1 H5 108.486
N2 C1 H6 110.827 N2 C1 H7 110.827
N2 C3 O4 172.918 H5 C1 H6 108.726
H5 C1 H7 108.726 H6 C1 H7 109.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.163      
2 N -0.436      
3 C 0.506      
4 O -0.300      
5 H 0.134      
6 H 0.130      
7 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.545 1.426 0.000 2.917
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 4.675 1.911 0.000
y 1.911 5.469 0.000
z 0.000 0.000 2.977


<r2> (average value of r2) Å2
<r2> 83.430
(<r2>)1/2 9.134