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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B2PLYP=FULLultrafine/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-207.937276
Energy at 298.15K 
HF Energy-207.662701
Nuclear repulsion energy104.102782
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/6-311+G(3df,2p)
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' 3157 3157 11.51 67.76 0.65 0.78
2 A' 3063 3063 45.26 191.60 0.01 0.03
3 A' 2360 2360 1037.12 1.21 0.08 0.15
4 A' 1522 1522 3.11 3.98 0.39 0.56
5 A' 1489 1489 17.34 10.79 0.37 0.54
6 A' 1465 1465 28.70 24.04 0.20 0.34
7 A' 1167 1167 19.26 0.71 0.74 0.85
8 A' 879 879 27.88 12.44 0.12 0.21
9 A' 644 644 28.12 0.50 0.56 0.72
10 A' 174 174 17.90 2.07 0.67 0.80
11 A" 3130 3130 15.73 65.80 0.75 0.86
12 A" 1526 1526 7.28 7.21 0.75 0.86
13 A" 1144 1144 0.12 0.32 0.75 0.86
14 A" 597 597 19.96 0.46 0.75 0.86
15 A" 47 47 1.85 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11180.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11180.6 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/6-311+G(3df,2p)
ABC
2.66151 0.14536 0.14150

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.342 1.105 0.000
N2 0.000 0.583 0.000
C3 -0.559 -0.479 0.000
O4 -1.220 -1.449 0.000
H5 1.296 2.189 0.000
H6 1.883 0.781 0.886
H7 1.883 0.781 -0.886

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43972.47403.61771.08491.08801.0880
N21.43971.20012.37062.06342.09052.0905
C32.47401.20011.17433.24912.88682.8868
O43.61772.37061.17434.42343.92263.9226
H51.08492.06343.24914.42341.76481.7648
H61.08802.09052.88683.92261.76481.7725
H71.08802.09052.88683.92261.76481.7725

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.003 N2 C1 H5 108.824
N2 C1 H6 110.823 N2 C1 H7 110.823
N2 C3 O4 173.467 H5 C1 H6 108.614
H5 C1 H7 108.614 H6 C1 H7 109.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.025      
2 N -0.914      
3 C 1.114      
4 O -0.624      
5 H 0.147      
6 H 0.151      
7 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.547 1.597 0.000 3.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.834 -0.622 -0.011
y -0.622 -25.168 -0.006
z -0.011 -0.006 -22.851
Traceless
 xyz
x 1.175 -0.622 -0.011
y -0.622 -2.325 -0.006
z -0.011 -0.006 1.150
Polar
3z2-r22.301
x2-y22.334
xy-0.622
xz-0.011
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.542 1.955 0.001
y 1.955 6.350 0.000
z 0.001 0.000 3.804


<r2> (average value of r2) Å2
<r2> 83.574
(<r2>)1/2 9.142