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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: PBE1PBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at PBE1PBE/Def2TZVPP
 hartrees
Energy at 0K-207.837744
Energy at 298.15K 
HF Energy-207.837744
Nuclear repulsion energy104.464931
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 PBE1PBE/Def2TZVPP
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' 3142 3142 12.44 76.17 0.64 0.78
2 A' 3048 3048 44.04 199.66 0.01 0.02
3 A' 2414 2414 1107.32 2.62 0.01 0.02
4 A' 1539 1539 2.54 16.62 0.16 0.27
5 A' 1485 1485 10.42 14.95 0.58 0.73
6 A' 1456 1456 30.05 12.56 0.31 0.48
7 A' 1154 1154 16.96 1.29 0.67 0.80
8 A' 901 901 27.65 7.64 0.15 0.26
9 A' 651 651 30.05 0.44 0.74 0.85
10 A' 166 166 17.67 2.07 0.66 0.80
11 A" 3115 3115 16.71 71.76 0.75 0.86
12 A" 1501 1501 7.34 11.17 0.75 0.86
13 A" 1129 1129 0.00 0.91 0.75 0.86
14 A" 609 609 23.37 0.57 0.75 0.86
15 A" 37 37 2.03 0.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11172.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11172.4 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 PBE1PBE/Def2TZVPP
ABC
2.79289 0.14559 0.14209

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.308 1.140 0.000
N2 0.000 0.567 0.000
C3 -0.547 -0.494 0.000
O4 -1.190 -1.470 0.000
H5 1.223 2.226 0.000
H6 1.868 0.840 0.888
H7 1.868 0.840 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.42772.47203.61301.08891.09201.0920
N21.42771.19402.35952.06052.08622.0862
C32.47201.19401.16893.24492.89842.8984
O43.61302.35951.16894.41383.93433.9343
H51.08892.06053.24494.41381.76781.7678
H61.09202.08622.89843.93431.76781.7758
H71.09202.08622.89843.93431.76781.7758

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 140.925 N2 C1 H5 109.187
N2 C1 H6 111.080 N2 C1 H7 111.080
N2 C3 O4 173.866 H5 C1 H6 108.308
H5 C1 H7 108.308 H6 C1 H7 108.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.133      
2 N -0.197      
3 C 0.247      
4 O -0.246      
5 H 0.112      
6 H 0.108      
7 H 0.108      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.449 1.633 0.000 2.944
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.507 -0.576 0.000
y -0.576 -24.755 0.000
z 0.000 0.000 -22.531
Traceless
 xyz
x 1.136 -0.576 0.000
y -0.576 -2.236 0.000
z 0.000 0.000 1.100
Polar
3z2-r22.201
x2-y22.248
xy-0.576
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.094 1.888 0.000
y 1.888 6.005 0.000
z 0.000 0.000 3.499


<r2> (average value of r2) Å2
<r2> 83.143
(<r2>)1/2 9.118