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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B97D3/6-311+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 B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-207.943269
Energy at 298.15K 
HF Energy-207.943269
Nuclear repulsion energy103.756187
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 B97D3/6-311+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' 3065 3026 17.53 75.44 0.62 0.77
2 A' 2973 2934 55.42 211.38 0.02 0.04
3 A' 2315 2285 937.48 1.45 0.13 0.22
4 A' 1478 1458 1.11 4.28 0.24 0.39
5 A' 1448 1429 15.98 11.01 0.44 0.61
6 A' 1418 1399 30.23 25.69 0.20 0.33
7 A' 1133 1118 16.73 0.82 0.75 0.86
8 A' 855 844 28.49 8.62 0.10 0.19
9 A' 629 621 23.52 0.77 0.46 0.63
10 A' 181 179 15.08 2.63 0.62 0.76
11 A" 3033 2993 23.96 77.42 0.75 0.86
12 A" 1478 1459 6.19 7.88 0.75 0.86
13 A" 1108 1094 0.03 0.36 0.75 0.86
14 A" 573 565 16.92 0.47 0.75 0.86
15 A" 55 54 1.57 0.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10870.9 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 10729.6 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 B97D3/6-311+G(3df,2p)
ABC
2.54142 0.14537 0.14120

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.364 1.075 0.000
N2 0.000 0.598 0.000
C3 -0.565 -0.468 0.000
O4 -1.243 -1.432 0.000
H5 1.355 2.167 0.000
H6 1.899 0.731 0.892
H7 1.899 0.731 -0.892

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44492.47013.61641.09181.09541.0954
N21.44491.20622.37982.07282.10232.1023
C32.47011.20621.17823.25982.88212.8821
O43.61642.37981.17824.43793.91743.9174
H51.09182.07283.25984.43791.77541.7754
H61.09542.10232.88213.91741.77541.7835
H71.09542.10232.88213.91741.77541.7835

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.232 N2 C1 H5 108.797
N2 C1 H6 110.956 N2 C1 H7 110.956
N2 C3 O4 172.835 H5 C1 H6 108.536
H5 C1 H7 108.536 H6 C1 H7 108.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 N -0.917      
3 C 1.140      
4 O -0.629      
5 H 0.115      
6 H 0.122      
7 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.459 1.437 0.000 2.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.672 -0.614 0.000
y -0.614 -24.966 0.000
z 0.000 0.000 -22.705
Traceless
 xyz
x 1.163 -0.614 0.000
y -0.614 -2.277 0.000
z 0.000 0.000 1.114
Polar
3z2-r22.228
x2-y22.293
xy-0.614
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.828 1.977 0.000
y 1.977 6.381 0.000
z 0.000 0.000 3.945


<r2> (average value of r2) Å2
<r2> 83.629
(<r2>)1/2 9.145