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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-207.944184
Energy at 298.15K 
HF Energy-207.944184
Nuclear repulsion energy103.938400
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-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 3027 13.06 65.64 0.65 0.79
2 A' 3054 2924 47.10 202.09 0.01 0.02
3 A' 2384 2282 1167.58 2.14 0.06 0.11
4 A' 1520 1455 3.00 14.18 0.14 0.24
5 A' 1470 1408 11.35 11.04 0.49 0.66
6 A' 1443 1382 30.36 7.48 0.24 0.38
7 A' 1149 1100 18.55 0.63 0.69 0.81
8 A' 908 869 27.98 10.38 0.11 0.20
9 A' 657 629 29.78 0.61 0.45 0.62
10 A' 178 171 17.88 2.10 0.65 0.78
11 A" 3134 3000 17.70 62.92 0.75 0.86
12 A" 1489 1425 7.90 6.35 0.75 0.86
13 A" 1126 1077 0.06 0.25 0.75 0.86
14 A" 605 579 22.40 0.60 0.75 0.86
15 A" 66 63 1.72 0.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11171.9 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 10694.8 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-pVDZ
ABC
2.51302 0.14619 0.14191

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.365 1.066 0.000
N2 0.000 0.599 0.000
C3 -0.569 -0.463 0.000
O4 -1.240 -1.426 0.000
H5 1.359 2.161 0.000
H6 1.896 0.717 0.895
H7 1.896 0.717 -0.895

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44242.46523.60551.09451.09801.0980
N21.44241.20452.37492.07012.10022.1002
C32.46521.20451.17443.25562.87612.8761
O43.60552.37491.17444.42983.90333.9033
H51.09452.07013.25564.42981.78151.7815
H61.09802.10022.87613.90331.78151.7900
H71.09802.10022.87613.90331.78151.7900

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.111 N2 C1 H5 108.601
N2 C1 H6 110.802 N2 C1 H7 110.802
N2 C3 O4 173.346 H5 C1 H6 108.689
H5 C1 H7 108.689 H6 C1 H7 109.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.793      
2 N -0.105      
3 C 0.061      
4 O -0.327      
5 H -0.220      
6 H -0.101      
7 H -0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.564 1.460 0.000 2.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.623 -0.635 0.000
y -0.635 -25.084 0.000
z 0.000 0.000 -22.671
Traceless
 xyz
x 1.255 -0.635 0.000
y -0.635 -2.437 0.000
z 0.000 0.000 1.182
Polar
3z2-r22.364
x2-y22.461
xy-0.635
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.623 1.872 0.000
y 1.872 6.246 0.000
z 0.000 0.000 3.891


<r2> (average value of r2) Å2
<r2> 83.308
(<r2>)1/2 9.127