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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-208.045876
Energy at 298.15K 
HF Energy-208.045876
Nuclear repulsion energy104.035703
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 B3LYPultrafine/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' 3124 3019 22.53 87.04 0.63 0.78
2 A' 3033 2931 51.97 164.82 0.02 0.04
3 A' 2390 2310 1008.78 1.81 0.02 0.03
4 A' 1525 1474 1.31 6.67 0.37 0.54
5 A' 1496 1446 14.72 16.46 0.57 0.72
6 A' 1471 1422 32.92 29.06 0.36 0.53
7 A' 1165 1126 15.67 2.75 0.64 0.78
8 A' 880 850 33.36 7.53 0.21 0.35
9 A' 643 621 29.54 0.41 0.68 0.81
10 A' 172 166 16.80 1.75 0.68 0.81
11 A" 3091 2987 30.19 80.90 0.75 0.86
12 A" 1525 1474 6.89 16.41 0.75 0.86
13 A" 1140 1102 0.00 2.31 0.75 0.86
14 A" 597 577 26.17 0.68 0.75 0.86
15 A" 52 50 2.41 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11152.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 10776.2 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 B3LYPultrafine/6-311G*
ABC
2.68145 0.14496 0.14120

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.338 1.113 0.000
N2 0.000 0.578 0.000
C3 -0.560 -0.482 0.000
O4 -1.217 -1.453 0.000
H5 1.286 2.201 0.000
H6 1.889 0.795 0.889
H7 1.889 0.795 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44132.47923.62161.08951.09321.0932
N21.44131.19892.36812.07052.09932.0993
C32.47921.19891.17283.25652.90152.9015
O43.62162.36811.17284.42923.93643.9364
H51.08952.07053.25654.42921.77001.7700
H61.09322.09932.90153.93641.77001.7781
H71.09322.09932.90153.93641.77001.7781

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.603 N2 C1 H5 108.999
N2 C1 H6 111.106 N2 C1 H7 111.106
N2 C3 O4 173.717 H5 C1 H6 108.362
H5 C1 H7 108.362 H6 C1 H7 108.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.509      
2 N -0.363      
3 C 0.463      
4 O -0.281      
5 H 0.235      
6 H 0.227      
7 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.529 1.512 0.000 2.946
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.407 -0.554 0.000
y -0.554 -24.841 0.000
z 0.000 0.000 -22.527
Traceless
 xyz
x 1.277 -0.554 0.000
y -0.554 -2.374 0.000
z 0.000 0.000 1.097
Polar
3z2-r22.194
x2-y22.433
xy-0.554
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.537 1.869 0.000
y 1.869 5.423 0.000
z 0.000 0.000 2.938


<r2> (average value of r2) Å2
<r2> 83.548
(<r2>)1/2 9.140