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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/aug-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 wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-207.997258
Energy at 298.15K 
HF Energy-207.997258
Nuclear repulsion energy104.447383
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 wB97X-D/aug-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' 3149 3013 12.42 67.73 0.64 0.78
2 A' 3054 2922 44.07 209.06 0.01 0.02
3 A' 2397 2293 1219.82 1.90 0.03 0.06
4 A' 1537 1470 1.91 15.41 0.13 0.23
5 A' 1496 1431 11.96 12.71 0.46 0.63
6 A' 1468 1404 30.06 9.36 0.24 0.39
7 A' 1163 1112 18.40 0.60 0.74 0.85
8 A' 898 859 27.87 9.49 0.10 0.19
9 A' 656 628 30.89 0.56 0.45 0.62
10 A' 166 159 18.20 1.97 0.64 0.78
11 A" 3123 2988 16.40 64.63 0.75 0.86
12 A" 1515 1449 7.99 6.63 0.75 0.86
13 A" 1139 1090 0.08 0.22 0.75 0.86
14 A" 613 587 22.59 0.62 0.75 0.86
15 A" 55 52 1.87 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11214.1 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 10727.4 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 wB97X-D/aug-cc-pVTZ
ABC
2.71274 0.14603 0.14228

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.330 1.115 0.000
N2 0.000 0.574 0.000
C3 -0.557 -0.482 0.000
O4 -1.208 -1.452 0.000
H5 1.270 2.200 0.000
H6 1.877 0.798 0.887
H7 1.877 0.798 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43522.47113.60881.08681.08991.0899
N21.43521.19362.35852.06272.08832.0883
C32.47111.19361.16823.24432.88932.8893
O43.60882.35851.16824.41253.91953.9195
H51.08682.06273.24434.41251.76711.7671
H61.08992.08832.88933.91951.76711.7748
H71.08992.08832.88933.91951.76711.7748

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.926 N2 C1 H5 108.959
N2 C1 H6 110.849 N2 C1 H7 110.849
N2 C3 O4 173.946 H5 C1 H6 108.551
H5 C1 H7 108.551 H6 C1 H7 109.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.420      
2 N 0.002      
3 C -0.040      
4 O -0.399      
5 H 0.286      
6 H 0.285      
7 H 0.285      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.500 1.595 0.000 2.966
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.543 -0.634 0.000
y -0.634 -24.867 0.000
z 0.000 0.000 -22.527
Traceless
 xyz
x 1.154 -0.634 0.000
y -0.634 -2.332 0.000
z 0.000 0.000 1.178
Polar
3z2-r22.357
x2-y22.324
xy-0.634
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.542 1.834 0.000
y 1.834 6.303 0.000
z 0.000 0.000 3.916


<r2> (average value of r2) Å2
<r2> 83.052
(<r2>)1/2 9.113