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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: PBE1PBE/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 PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-207.781444
Energy at 298.15K 
HF Energy-207.781444
Nuclear repulsion energy103.968656
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 PBE1PBE/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' 3163 3041 11.43 70.56 0.65 0.79
2 A' 3055 2938 47.18 218.52 0.01 0.03
3 A' 2395 2303 1112.50 2.55 0.05 0.09
4 A' 1523 1464 2.94 18.14 0.15 0.26
5 A' 1461 1405 10.88 11.14 0.52 0.69
6 A' 1432 1377 29.04 9.17 0.26 0.41
7 A' 1142 1098 18.18 0.56 0.69 0.82
8 A' 907 872 26.56 9.14 0.11 0.19
9 A' 649 624 28.45 0.63 0.48 0.65
10 A' 176 169 17.73 2.40 0.63 0.77
11 A" 3133 3012 16.28 70.66 0.75 0.86
12 A" 1477 1421 7.79 7.12 0.75 0.86
13 A" 1117 1074 0.01 0.24 0.75 0.86
14 A" 598 575 20.74 0.58 0.75 0.86
15 A" 55 53 1.76 0.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11140.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 10713.0 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 PBE1PBE/aug-cc-pVDZ
ABC
2.60944 0.14555 0.14159

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.342 1.098 0.000
N2 0.000 0.589 0.000
C3 -0.559 -0.477 0.000
O4 -1.223 -1.447 0.000
H5 1.305 2.192 0.000
H6 1.888 0.768 0.894
H7 1.888 0.768 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43492.46803.61281.09501.09861.0986
N21.43491.20382.37532.06692.09652.0965
C32.46801.20381.17563.25542.88672.8867
O43.61282.37531.17564.43103.92163.9216
H51.09502.06693.25544.43101.78011.7801
H61.09862.09652.88673.92161.78011.7889
H71.09862.09652.88673.92161.78011.7889

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.396 N2 C1 H5 108.828
N2 C1 H6 110.989 N2 C1 H7 110.989
N2 C3 O4 173.258 H5 C1 H6 108.480
H5 C1 H7 108.480 H6 C1 H7 109.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.801      
2 N -0.172      
3 C 0.136      
4 O -0.361      
5 H -0.216      
6 H -0.094      
7 H -0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.500 1.533 0.000 2.932
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.717 -0.623 0.000
y -0.623 -25.049 0.000
z 0.000 0.000 -22.729
Traceless
 xyz
x 1.172 -0.623 0.000
y -0.623 -2.326 0.000
z 0.000 0.000 1.154
Polar
3z2-r22.308
x2-y22.332
xy-0.623
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.635 1.914 0.000
y 1.914 6.306 0.000
z 0.000 0.000 3.882


<r2> (average value of r2) Å2
<r2> 83.504
(<r2>)1/2 9.138