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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-206.714724
Energy at 298.15K 
HF Energy-206.714724
Nuclear repulsion energy102.363813
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 B97D3/3-21G*
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' 3080 3080 20.94 89.01 0.61 0.76
2 A' 2983 2983 48.03 156.34 0.03 0.05
3 A' 2342 2342 572.27 3.48 0.14 0.24
4 A' 1532 1532 7.33 23.50 0.75 0.86
5 A' 1478 1478 24.42 17.99 0.61 0.76
6 A' 1403 1403 16.64 39.07 0.30 0.47
7 A' 1146 1146 10.57 3.50 0.70 0.82
8 A' 808 808 33.43 5.36 0.23 0.38
9 A' 572 572 16.57 0.61 0.45 0.62
10 A' 166 166 13.85 1.75 0.69 0.81
11 A" 3040 3040 28.39 77.22 0.75 0.86
12 A" 1544 1544 7.79 28.54 0.75 0.86
13 A" 1122 1122 0.40 3.37 0.75 0.86
14 A" 530 530 18.05 0.61 0.75 0.86
15 A" 57 57 3.84 1.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10901.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10901.7 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 B97D3/3-21G*
ABC
2.88456 0.13853 0.13562

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.301 1.216 0.000
N2 0.000 0.562 0.000
C3 -0.530 -0.523 0.000
O4 -1.191 -1.534 0.000
H5 1.149 2.302 0.000
H6 1.878 0.940 0.896
H7 1.878 0.940 -0.896

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45572.52533.71081.09661.10091.1009
N21.45571.20802.41092.08512.11472.1147
C32.52531.20801.20763.28672.95702.9570
O43.71082.41091.20764.49354.04254.0425
H51.09662.08513.28674.49351.78561.7856
H61.10092.11472.95704.04251.78561.7920
H71.10092.11472.95704.04251.78561.7920

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 142.740 N2 C1 H5 108.750
N2 C1 H6 110.849 N2 C1 H7 110.849
N2 C3 O4 172.897 H5 C1 H6 108.696
H5 C1 H7 108.696 H6 C1 H7 108.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.417      
2 N -0.587      
3 C 0.757      
4 O -0.453      
5 H 0.241      
6 H 0.230      
7 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.655 1.796 0.000 3.206
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.805 -0.283 0.000
y -0.283 -24.499 0.000
z 0.000 0.000 -22.266
Traceless
 xyz
x 1.577 -0.283 0.000
y -0.283 -2.463 0.000
z 0.000 0.000 0.886
Polar
3z2-r21.772
x2-y22.694
xy-0.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.897 1.959 0.000
y 1.959 5.186 0.000
z 0.000 0.000 2.365


<r2> (average value of r2) Å2
<r2> 86.057
(<r2>)1/2 9.277