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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: M06-2X/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at M06-2X/cc-pVTZ
 hartrees
Energy at 0K-207.981775
Energy at 298.15K 
HF Energy-207.981775
Nuclear repulsion energy104.395510
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 M06-2X/cc-pVTZ
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' 3163 3021 10.39 71.78 0.65 0.79
2 A' 3072 2934 35.36 179.91 0.01 0.02
3 A' 2423 2314 1258.92 2.95 0.03 0.06
4 A' 1552 1482 2.05 13.84 0.16 0.28
5 A' 1500 1432 10.15 13.84 0.61 0.76
6 A' 1464 1398 35.33 11.72 0.35 0.52
7 A' 1161 1109 18.09 1.26 0.66 0.80
8 A' 896 856 31.46 8.39 0.16 0.28
9 A' 655 626 34.95 0.30 0.75 0.86
10 A' 149 142 18.97 1.57 0.67 0.80
11 A" 3139 2998 13.24 64.87 0.75 0.86
12 A" 1517 1449 6.69 10.35 0.75 0.86
13 A" 1139 1088 0.07 0.93 0.75 0.86
14 A" 619 591 28.08 0.55 0.75 0.86
15 A" 60 57 2.25 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11254.0 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 10748.7 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 M06-2X/cc-pVTZ
ABC
2.83241 0.14490 0.14152

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.309 1.153 0.000
N2 0.000 0.560 0.000
C3 -0.548 -0.497 0.000
O4 -1.187 -1.475 0.000
H5 1.206 2.234 0.000
H6 1.866 0.855 0.887
H7 1.866 0.855 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43642.48393.62421.08621.08911.0891
N21.43641.19132.35642.06292.08682.0868
C32.48391.19131.16813.24622.90572.9057
O43.62422.35641.16814.41433.94203.9420
H51.08622.06293.24624.41431.76721.7672
H61.08912.08682.90573.94201.76721.7746
H71.08912.08682.90573.94201.76721.7746

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 141.748 N2 C1 H5 108.941
N2 C1 H6 110.695 N2 C1 H7 110.695
N2 C3 O4 174.204 H5 C1 H6 108.669
H5 C1 H7 108.669 H6 C1 H7 109.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 N -0.196      
3 C 0.311      
4 O -0.299      
5 H 0.118      
6 H 0.113      
7 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.550 1.742 0.000 3.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.492 -0.569 0.000
y -0.569 -24.835 0.000
z 0.000 0.000 -22.572
Traceless
 xyz
x 1.212 -0.569 0.000
y -0.569 -2.304 0.000
z 0.000 0.000 1.091
Polar
3z2-r22.183
x2-y22.344
xy-0.569
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.908 1.843 0.000
y 1.843 5.816 0.000
z 0.000 0.000 3.357


<r2> (average value of r2) Å2
<r2> 83.413
(<r2>)1/2 9.133