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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: BLYP/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 BLYP/cc-pVDZ
 hartrees
Energy at 0K-207.945372
Energy at 298.15K 
HF Energy-207.945372
Nuclear repulsion energy102.669531
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/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' 3035 3040 19.15 96.13 0.63 0.77
2 A' 2938 2943 56.22 192.15 0.02 0.04
3 A' 2282 2286 737.57 1.15 0.00 0.00
4 A' 1443 1446 0.10 5.38 0.40 0.57
5 A' 1409 1412 13.17 18.24 0.65 0.79
6 A' 1392 1394 45.42 33.26 0.31 0.48
7 A' 1110 1112 15.53 1.93 0.55 0.71
8 A' 854 856 27.59 7.17 0.22 0.36
9 A' 604 605 19.04 0.63 0.75 0.86
10 A' 187 188 13.50 2.38 0.58 0.73
11 A" 2998 3002 27.00 91.66 0.75 0.86
12 A" 1434 1437 4.25 20.06 0.75 0.86
13 A" 1077 1079 0.03 2.29 0.75 0.86
14 A" 538 538 14.01 0.60 0.75 0.86
15 A" 51 51 1.48 0.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10676.7 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 10693.8 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 BLYP/cc-pVDZ
ABC
2.42247 0.14318 0.13884

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.385 1.061 0.000
N2 0.000 0.616 0.000
C3 -0.569 -0.467 0.000
O4 -1.269 -1.432 0.000
H5 1.403 2.168 0.000
H6 1.927 0.707 0.902
H7 1.927 0.707 -0.902

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45472.48033.64141.10651.11061.1106
N21.45471.22322.40912.09232.12962.1296
C32.48031.22321.19233.29102.90162.9016
O43.64142.40911.19234.48333.95013.9501
H51.10652.09233.29104.48331.79511.7951
H61.11062.12962.90163.95011.79511.8041
H71.11062.12962.90163.95011.79511.8041

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 135.530 N2 C1 H5 108.795
N2 C1 H6 111.527 N2 C1 H7 111.527
N2 C3 O4 171.699 H5 C1 H6 108.124
H5 C1 H7 108.124 H6 C1 H7 108.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.087      
2 N -0.195      
3 C 0.138      
4 O -0.134      
5 H 0.035      
6 H 0.035      
7 H 0.035      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.267 1.218 0.000 2.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.248 -0.424 0.000
y -0.424 -24.313 0.000
z 0.000 0.000 -22.443
Traceless
 xyz
x 1.130 -0.424 0.000
y -0.424 -1.967 0.000
z 0.000 0.000 0.838
Polar
3z2-r21.675
x2-y22.065
xy-0.424
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.899 1.995 0.000
y 1.995 5.398 0.000
z 0.000 0.000 2.978


<r2> (average value of r2) Å2
<r2> 84.545
(<r2>)1/2 9.195