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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B3LYPultrafine/daug-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 B3LYPultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-208.019308
Energy at 298.15K 
HF Energy-208.019308
Nuclear repulsion energy103.627439
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 B3LYPultrafine/daug-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' 3130 3130 13.67 73.29 0.64 0.78
2 A' 3034 3034 48.97 224.29 0.01 0.03
3 A' 2347 2347 1083.85 1.71 0.05 0.10
4 A' 1496 1496 0.99 10.44 0.11 0.19
5 A' 1461 1461 14.04 13.21 0.46 0.63
6 A' 1430 1430 31.21 14.81 0.21 0.35
7 A' 1144 1144 18.73 0.71 0.75 0.86
8 A' 879 879 28.70 9.40 0.11 0.20
9 A' 640 640 28.05 0.75 0.40 0.57
10 A' 180 180 17.04 2.30 0.61 0.75
11 A" 3100 3100 19.25 73.55 0.75 0.86
12 A" 1483 1483 6.87 7.45 0.75 0.86
13 A" 1119 1119 0.06 0.31 0.75 0.86
14 A" 587 587 20.01 0.61 0.75 0.86
15 A" 66 66 1.69 0.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11047.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11047.5 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 B3LYPultrafine/daug-cc-pVDZ
ABC
2.56121 0.14476 0.14071

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 1.087 0.000
N2 0.000 0.594 0.000
C3 -0.565 -0.472 0.000
O4 -1.237 -1.441 0.000
H5 1.335 2.182 0.000
H6 1.898 0.749 0.895
H7 1.898 0.749 -0.895

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44592.47663.62411.09461.09801.0980
N21.44591.20672.38182.07392.10442.1044
C32.47661.20671.17943.26352.89102.8910
O43.62412.38181.17944.44283.92783.9278
H51.09462.07393.26354.44281.78091.7809
H61.09802.10442.89103.92781.78091.7891
H71.09802.10442.89103.92781.78091.7891

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.845 N2 C1 H5 108.648
N2 C1 H6 110.884 N2 C1 H7 110.884
N2 C3 O4 173.140 H5 C1 H6 108.628
H5 C1 H7 108.628 H6 C1 H7 109.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.899      
2 N 0.508      
3 C -0.474      
4 O -0.839      
5 H -0.407      
6 H -0.344      
7 H -0.344      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.544 1.526 0.000 2.967
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.906 -0.647 0.000
y -0.647 -25.289 0.000
z 0.000 0.000 -22.918
Traceless
 xyz
x 1.197 -0.647 0.000
y -0.647 -2.376 0.000
z 0.000 0.000 1.179
Polar
3z2-r22.358
x2-y22.382
xy-0.647
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.817 1.915 0.000
y 1.915 6.431 0.000
z 0.000 0.000 4.030


<r2> (average value of r2) Å2
<r2> 84.037
(<r2>)1/2 9.167