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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: TPSSh/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at TPSSh/cc-pVDZ
 hartrees
Energy at 0K-208.012499
Energy at 298.15K 
HF Energy-208.012499
Nuclear repulsion energy103.468105
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 TPSSh/cc-pVDZ
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' 3133 3047 18.01 91.71 0.65 0.79
2 A' 3028 2944 52.01 181.73 0.02 0.03
3 A' 2357 2292 871.14 1.04 0.00 0.00
4 A' 1498 1457 0.80 6.13 0.43 0.60
5 A' 1467 1426 10.60 17.93 0.56 0.72
6 A' 1441 1401 48.55 24.33 0.32 0.49
7 A' 1146 1115 18.61 2.07 0.55 0.71
8 A' 888 863 31.36 8.30 0.20 0.34
9 A' 633 616 23.06 0.51 0.75 0.86
10 A' 186 181 15.21 1.99 0.61 0.76
11 A" 3099 3014 25.56 84.90 0.75 0.86
12 A" 1495 1454 4.50 18.01 0.75 0.86
13 A" 1113 1083 0.01 2.13 0.75 0.86
14 A" 570 554 18.67 0.61 0.75 0.86
15 A" 50 49 1.80 0.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11052.4 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 10747.3 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 TPSSh/cc-pVDZ
ABC
2.44336 0.14548 0.14103

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.378 1.051 0.000
N2 0.000 0.611 0.000
C3 -0.568 -0.461 0.000
O4 -1.259 -1.420 0.000
H5 1.394 2.149 0.000
H6 1.909 0.694 0.897
H7 1.909 0.694 -0.897

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44642.46453.61351.09831.10201.1020
N21.44641.21362.38962.07522.11092.1109
C32.46451.21361.18163.26512.87672.8767
O43.61352.38961.18164.44653.91243.9124
H51.09832.07523.26514.44651.78561.7856
H61.10202.11092.87673.91241.78561.7945
H71.10202.11092.87673.91241.78561.7945

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 135.609 N2 C1 H5 108.498
N2 C1 H6 111.133 N2 C1 H7 111.133
N2 C3 O4 172.158 H5 C1 H6 108.494
H5 C1 H7 108.494 H6 C1 H7 109.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 N -0.308      
3 C 0.264      
4 O -0.187      
5 H 0.059      
6 H 0.057      
7 H 0.057      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.383 1.232 0.000 2.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.712 1.903 0.000
y 1.903 5.253 0.000
z 0.000 0.000 2.913


<r2> (average value of r2) Å2
<r2> 83.337
(<r2>)1/2 9.129