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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-207.949818
Energy at 298.15K 
HF Energy-207.949818
Nuclear repulsion energy102.112964
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 B3LYP/LANL2DZ
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' 3123 3001 26.72 84.15 0.75 0.86
2 A' 3037 2920 61.40 234.11 0.01 0.02
3 A' 2462 2366 1041.79 17.00 0.23 0.38
4 A' 1520 1461 14.48 22.88 0.75 0.86
5 A' 1508 1449 24.18 5.06 0.72 0.84
6 A' 1470 1413 0.06 60.60 0.37 0.55
7 A' 1164 1119 0.44 1.48 0.75 0.86
8 A' 818 786 46.31 4.83 0.22 0.37
9 A' 533 512 29.20 0.63 0.75 0.86
10 A' 58 55 9.43 3.23 0.75 0.86
11 A" 3123 3001 26.75 84.09 0.75 0.86
12 A" 1520 1461 14.47 22.90 0.75 0.86
13 A" 1164 1119 0.44 1.48 0.75 0.86
14 A" 533 512 29.21 0.63 0.75 0.86
15 A" 58 56 9.43 3.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11044.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 10615.9 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 B3LYP/LANL2DZ
ABC
5.28530 0.12986 0.12986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.008 1.840 0.000
N2 0.000 0.415 0.000
C3 -0.003 -0.778 0.000
O4 -0.007 -1.995 0.000
H5 -1.017 2.233 0.000
H6 0.524 2.224 0.890
H7 0.524 2.224 -0.890

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42552.61863.83561.09741.09741.0974
N21.42551.19322.41012.08282.08292.0829
C32.61861.19321.21703.17693.17543.1754
O43.83562.41011.21704.34674.34464.3446
H51.09742.08283.17694.34671.77891.7789
H61.09742.08293.17544.34461.77891.7790
H71.09742.08293.17544.34461.77891.7790

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 179.840 N2 C1 H5 110.621
N2 C1 H6 110.629 N2 C1 H7 110.629
N2 C3 O4 179.982 H5 C1 H6 108.289
H5 C1 H7 108.289 H6 C1 H7 108.297
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.573      
2 N -0.005      
3 C 0.131      
4 O -0.262      
5 H 0.236      
6 H 0.236      
7 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.020 4.278 0.000 4.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.438 -0.007 0.000
y -0.007 -25.682 0.000
z 0.000 0.000 -22.438
Traceless
 xyz
x 1.622 -0.007 0.000
y -0.007 -3.244 0.000
z 0.000 0.000 1.622
Polar
3z2-r23.245
x2-y23.244
xy-0.007
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.566 0.016 0.000
y 0.016 7.362 0.000
z 0.000 0.000 2.566


<r2> (average value of r2) Å2
<r2> 89.741
(<r2>)1/2 9.473