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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/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 wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-207.929909
Energy at 298.15K 
HF Energy-207.929909
Nuclear repulsion energy103.946547
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/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' 3162 3012 13.42 86.93 0.67 0.81
2 A' 3050 2906 46.22 169.24 0.01 0.02
3 A' 2415 2300 1032.90 1.51 0.02 0.04
4 A' 1532 1459 4.93 11.38 0.17 0.29
5 A' 1473 1403 8.35 19.48 0.62 0.77
6 A' 1449 1380 39.63 13.60 0.46 0.63
7 A' 1152 1097 15.98 1.66 0.54 0.70
8 A' 917 873 31.24 8.34 0.20 0.34
9 A' 651 621 28.75 0.41 0.74 0.85
10 A' 178 169 16.58 1.70 0.63 0.77
11 A" 3134 2985 18.84 77.13 0.75 0.86
12 A" 1489 1418 6.69 16.85 0.75 0.86
13 A" 1122 1069 0.00 1.56 0.75 0.86
14 A" 598 570 25.27 0.66 0.75 0.86
15 A" 57 55 1.95 0.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11189.0 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 10658.7 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 wB97X-D/cc-pVDZ
ABC
2.50107 0.14639 0.14206

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.364 1.062 0.000
N2 0.000 0.601 0.000
C3 -0.569 -0.462 0.000
O4 -1.242 -1.424 0.000
H5 1.368 2.159 0.000
H6 1.901 0.713 0.895
H7 1.901 0.713 -0.895

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43962.46163.60101.09731.10071.1007
N21.43961.20602.37522.07312.10422.1042
C32.46161.20601.17353.25922.87852.8785
O43.60102.37521.17354.43243.90463.9046
H51.09732.07313.25924.43241.78221.7822
H61.10072.10422.87853.90461.78221.7908
H71.10072.10422.87853.90461.78221.7908

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 136.839 N2 C1 H5 108.863
N2 C1 H6 111.159 N2 C1 H7 111.159
N2 C3 O4 173.201 H5 C1 H6 108.349
H5 C1 H7 108.349 H6 C1 H7 108.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.032      
2 N -0.301      
3 C 0.261      
4 O -0.188      
5 H 0.068      
6 H 0.064      
7 H 0.064      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.431 1.297 0.000 2.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.031 -0.502 0.000
y -0.502 -24.354 0.000
z 0.000 0.000 -22.202
Traceless
 xyz
x 1.247 -0.502 0.000
y -0.502 -2.238 0.000
z 0.000 0.000 0.990
Polar
3z2-r21.981
x2-y22.323
xy-0.502
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.533 1.837 0.000
y 1.837 5.191 0.000
z 0.000 0.000 2.874


<r2> (average value of r2) Å2
<r2> 82.893
(<r2>)1/2 9.105