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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-207.869595
Energy at 298.15K 
HF Energy-207.636661
Nuclear repulsion energy103.921663
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/6-311G*
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' 3168 3168 19.29 81.44 0.66 0.79
2 A' 3068 3068 50.16 153.55 0.01 0.03
3 A' 2373 2373 897.59 0.86 0.03 0.05
4 A' 1535 1535 5.04 9.71 0.71 0.83
5 A' 1498 1498 21.38 8.58 0.75 0.86
6 A' 1472 1472 25.79 29.72 0.28 0.44
7 A' 1175 1175 16.63 3.06 0.61 0.76
8 A' 888 888 31.12 11.42 0.21 0.34
9 A' 643 643 26.80 0.44 0.63 0.77
10 A' 182 182 17.30 1.66 0.69 0.82
11 A" 3136 3136 26.61 73.42 0.75 0.86
12 A" 1543 1543 7.03 15.75 0.75 0.86
13 A" 1152 1152 0.02 2.42 0.75 0.86
14 A" 592 592 23.07 0.63 0.75 0.86
15 A" 65 65 2.29 1.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11244.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11244.8 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 B2PLYP=FULLultrafine/6-311G*
ABC
2.53682 0.14586 0.14162

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.365 1.069 0.000
N2 0.000 0.598 0.000
C3 -0.568 -0.465 0.000
O4 -1.242 -1.428 0.000
H5 1.358 2.157 0.000
H6 1.897 0.725 0.888
H7 1.897 0.725 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44442.46793.61051.08751.09111.0911
N21.44441.20502.37642.06762.09862.0986
C32.46791.20501.17583.25322.87762.8776
O43.61052.37641.17584.42873.90893.9089
H51.08752.06763.25324.42871.76901.7690
H61.09112.09862.87763.90891.76901.7768
H71.09112.09862.87763.90891.76901.7768

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.155 N2 C1 H5 108.676
N2 C1 H6 110.956 N2 C1 H7 110.956
N2 C3 O4 173.110 H5 C1 H6 108.580
H5 C1 H7 108.580 H6 C1 H7 109.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.518      
2 N -0.364      
3 C 0.455      
4 O -0.275      
5 H 0.240      
6 H 0.231      
7 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.563 1.382 0.000 2.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.395 -0.482 -0.013
y -0.482 -24.866 -0.006
z -0.013 -0.006 -22.612
Traceless
 xyz
x 1.344 -0.482 -0.013
y -0.482 -2.362 -0.006
z -0.013 -0.006 1.018
Polar
3z2-r22.036
x2-y22.471
xy-0.482
xz-0.013
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.570 1.901 0.002
y 1.901 5.420 -0.000
z 0.002 -0.000 2.916


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