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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-207.805925
Energy at 298.15K 
HF Energy-207.597353
Nuclear repulsion energy103.469817
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/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' 3169 3037 15.26 87.58 0.66 0.80
2 A' 3061 2933 50.46 167.60 0.01 0.02
3 A' 2359 2260 833.08 0.70 0.02 0.04
4 A' 1499 1436 2.02 6.67 0.48 0.64
5 A' 1466 1405 10.86 18.52 0.52 0.68
6 A' 1451 1391 48.45 21.29 0.33 0.50
7 A' 1155 1106 17.54 1.88 0.51 0.68
8 A' 898 861 29.19 11.31 0.21 0.34
9 A' 637 610 23.71 0.47 0.73 0.84
10 A' 187 179 16.00 1.81 0.63 0.77
11 A" 3138 3007 21.53 77.89 0.75 0.86
12 A" 1498 1435 5.44 17.45 0.75 0.86
13 A" 1125 1078 0.01 1.83 0.75 0.86
14 A" 575 551 18.99 0.58 0.75 0.86
15 A" 53 50 1.74 0.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11134.6 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 10669.2 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/cc-pVDZ
ABC
2.40878 0.14581 0.14120

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.382 1.040 0.000
N2 0.000 0.617 0.000
C3 -0.572 -0.455 0.000
O4 -1.262 -1.415 0.000
H5 1.415 2.137 0.000
H6 1.911 0.678 0.895
H7 1.911 0.678 -0.895

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44552.46103.60831.09701.10071.1007
N21.44551.21542.39222.07652.11072.1107
C32.46101.21541.18203.26622.87242.8724
O43.60832.39221.18204.44783.90483.9048
H51.09702.07653.26624.44781.78161.7816
H61.10072.11072.87243.90481.78161.7902
H71.10072.11072.87243.90481.78161.7902

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 135.125 N2 C1 H5 108.742
N2 C1 H6 111.267 N2 C1 H7 111.267
N2 C3 O4 172.431 H5 C1 H6 108.325
H5 C1 H7 108.325 H6 C1 H7 108.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.068      
2 N -0.275      
3 C 0.215      
4 O -0.164      
5 H 0.054      
6 H 0.051      
7 H 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.384 1.215 0.000 2.675
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.267 -0.444 -0.014
y -0.444 -24.509 -0.005
z -0.014 -0.005 -22.483
Traceless
 xyz
x 1.229 -0.444 -0.014
y -0.444 -2.134 -0.005
z -0.014 -0.005 0.905
Polar
3z2-r21.810
x2-y22.242
xy-0.444
xz-0.014
yz-0.005


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.666 1.921 0.002
y 1.921 5.283 -0.000
z 0.002 -0.000 2.886


<r2> (average value of r2) Å2
<r2> 83.400
(<r2>)1/2 9.132