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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-207.847930
Energy at 298.15K 
HF Energy-207.847930
Nuclear repulsion energy104.453368
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 HSEh1PBE/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' 3137 3015 13.33 78.20 0.65 0.79
2 A' 3045 2926 44.72 195.46 0.01 0.03
3 A' 2419 2325 1081.19 2.60 0.02 0.03
4 A' 1537 1477 2.52 15.02 0.15 0.27
5 A' 1486 1428 10.21 15.53 0.59 0.74
6 A' 1456 1399 31.74 14.62 0.33 0.49
7 A' 1155 1110 16.48 1.10 0.64 0.78
8 A' 898 863 27.89 7.14 0.17 0.28
9 A' 650 624 30.03 0.41 0.74 0.85
10 A' 166 160 17.32 1.90 0.63 0.78
11 A" 3110 2989 18.13 74.70 0.75 0.86
12 A" 1502 1444 7.06 11.26 0.75 0.86
13 A" 1130 1086 0.00 0.83 0.75 0.86
14 A" 607 583 23.44 0.57 0.75 0.86
15 A" 38 36 2.02 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11166.9 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 10732.5 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 HSEh1PBE/cc-pVTZ
ABC
2.79814 0.14552 0.14202

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.308 1.141 0.000
N2 0.000 0.567 0.000
C3 -0.546 -0.494 0.000
O4 -1.191 -1.470 0.000
H5 1.222 2.226 0.000
H6 1.869 0.842 0.887
H7 1.869 0.842 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42822.47243.61401.08861.09181.0918
N21.42821.19372.35952.06092.08702.0870
C32.47241.19371.16923.24502.89952.8995
O43.61402.35951.16924.41423.93633.9363
H51.08862.06093.24504.41421.76711.7671
H61.09182.08702.89953.93631.76711.7749
H71.09182.08702.89953.93631.76711.7749

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 140.959 N2 C1 H5 109.197
N2 C1 H6 111.123 N2 C1 H7 111.123
N2 C3 O4 173.804 H5 C1 H6 108.280
H5 C1 H7 108.280 H6 C1 H7 108.752
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.141      
2 N -0.165      
3 C 0.234      
4 O -0.242      
5 H 0.109      
6 H 0.103      
7 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.426 1.622 0.000 2.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.401 -0.551 0.000
y -0.551 -24.621 0.000
z 0.000 0.000 -22.462
Traceless
 xyz
x 1.141 -0.551 0.000
y -0.551 -2.190 0.000
z 0.000 0.000 1.049
Polar
3z2-r22.097
x2-y22.220
xy-0.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.999 1.859 0.000
y 1.859 5.833 0.000
z 0.000 0.000 3.395


<r2> (average value of r2) Å2
<r2> 83.109
(<r2>)1/2 9.116