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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/daug-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 B2PLYP=FULLultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-207.940469
Energy at 298.15K 
HF Energy-207.666849
Nuclear repulsion energy104.060047
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 B2PLYP=FULLultrafine/daug-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' 3153 3153 11.47 67.96 0.63 0.77
2 A' 3065 3065 45.15 212.81 0.01 0.03
3 A' 2351 2351 1033.89 1.14 0.05 0.10
4 A' 1521 1521 3.47 4.13 0.42 0.59
5 A' 1486 1486 16.50 10.98 0.33 0.50
6 A' 1461 1461 28.69 25.83 0.19 0.31
7 A' 1167 1167 19.55 0.65 0.75 0.86
8 A' 877 877 27.68 12.38 0.12 0.21
9 A' 641 641 27.50 0.54 0.48 0.65
10 A' 174 174 17.89 2.07 0.64 0.78
11 A" 3126 3126 15.65 65.44 0.75 0.86
12 A" 1526 1526 6.98 6.81 0.75 0.86
13 A" 1144 1144 0.14 0.24 0.75 0.86
14 A" 593 593 18.68 0.55 0.75 0.86
15 A" 54 54 1.82 0.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11168.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11168.7 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 B2PLYP=FULLultrafine/daug-cc-pVTZ
ABC
2.67447 0.14514 0.14133

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.339 1.110 0.000
N2 0.000 0.582 0.000
C3 -0.557 -0.481 0.000
O4 -1.219 -1.453 0.000
H5 1.288 2.194 0.000
H6 1.881 0.787 0.886
H7 1.881 0.787 -0.886

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43982.47513.62101.08461.08781.0878
N21.43981.19992.37182.06282.08982.0898
C32.47511.19991.17593.24872.88742.8874
O43.62102.37181.17594.42463.92593.9259
H51.08462.06283.24874.42461.76491.7649
H61.08782.08982.88743.92591.76491.7725
H71.08782.08982.88743.92591.76491.7725

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.145 N2 C1 H5 108.786
N2 C1 H6 110.775 N2 C1 H7 110.775
N2 C3 O4 173.374 H5 C1 H6 108.666
H5 C1 H7 108.666 H6 C1 H7 109.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.954      
2 N -0.166      
3 C 0.018      
4 O -0.792      
5 H 0.590      
6 H 0.653      
7 H 0.653      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.533 1.611 0.000 3.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.847 -0.599 -0.011
y -0.599 -25.127 -0.006
z -0.011 -0.006 -22.853
Traceless
 xyz
x 1.142 -0.599 -0.011
y -0.599 -2.276 -0.006
z -0.011 -0.006 1.134
Polar
3z2-r22.267
x2-y22.279
xy-0.599
xz-0.011
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.675 1.924 0.001
y 1.924 6.458 0.000
z 0.001 0.000 3.956


<r2> (average value of r2) Å2
<r2> 83.645
(<r2>)1/2 9.146