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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: BLYP/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 BLYP/Def2TZVPP
 hartrees
Energy at 0K-208.029672
Energy at 298.15K 
HF Energy-208.029672
Nuclear repulsion energy103.239542
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 BLYP/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' 3042 3042 16.38 83.30 0.60 0.75
2 A' 2957 2957 49.22 209.98 0.02 0.04
3 A' 2282 2282 882.37 1.57 0.01 0.01
4 A' 1467 1467 1.00 5.03 0.53 0.69
5 A' 1438 1438 20.17 9.07 0.64 0.78
6 A' 1405 1405 25.46 33.59 0.22 0.36
7 A' 1125 1125 16.91 1.87 0.71 0.83
8 A' 838 838 27.36 7.83 0.16 0.27
9 A' 614 614 23.58 0.55 0.74 0.85
10 A' 180 180 15.19 2.41 0.64 0.78
11 A" 3009 3009 22.27 80.10 0.75 0.86
12 A" 1469 1469 5.54 12.85 0.75 0.86
13 A" 1099 1099 0.02 1.49 0.75 0.86
14 A" 560 560 16.99 0.56 0.75 0.86
15 A" 47 47 1.75 0.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10765.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10765.3 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 BLYP/Def2TZVPP
ABC
2.60899 0.14310 0.13927

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.356 1.108 0.000
N2 0.000 0.590 0.000
C3 -0.561 -0.482 0.000
O4 -1.236 -1.456 0.000
H5 1.315 2.201 0.000
H6 1.903 0.780 0.893
H7 1.903 0.780 -0.893

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45172.49063.64631.09391.09751.0975
N21.45171.20942.39032.07992.11062.1106
C32.49061.20941.18553.27372.90882.9088
O43.64632.39031.18554.45923.95633.9563
H51.09392.07993.27374.45921.77861.7786
H61.09752.11062.90883.95631.77861.7867
H71.09752.11062.90883.95631.77861.7867

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.576 N2 C1 H5 108.767
N2 C1 H6 111.011 N2 C1 H7 111.011
N2 C3 O4 172.938 H5 C1 H6 108.506
H5 C1 H7 108.506 H6 C1 H7 108.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134      
2 N -0.159      
3 C 0.162      
4 O -0.208      
5 H 0.117      
6 H 0.111      
7 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.474 1.524 0.000 2.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.845 -0.572 0.000
y -0.572 -25.130 0.000
z 0.000 0.000 -22.913
Traceless
 xyz
x 1.177 -0.572 0.000
y -0.572 -2.251 0.000
z 0.000 0.000 1.074
Polar
3z2-r22.148
x2-y22.285
xy-0.572
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.472 2.016 0.000
y 2.016 6.209 0.000
z 0.000 0.000 3.657


<r2> (average value of r2) Å2
<r2> 84.691
(<r2>)1/2 9.203