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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: PBE1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at PBE1PBE/6-311G**
 hartrees
Energy at 0K-207.807878
Energy at 298.15K 
HF Energy-207.807878
Nuclear repulsion energy104.338268
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 PBE1PBE/6-311G**
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' 3146 3018 15.29 83.98 0.65 0.79
2 A' 3048 2924 46.10 177.84 0.01 0.03
3 A' 2439 2340 1055.87 2.38 0.04 0.07
4 A' 1544 1481 3.27 14.52 0.16 0.28
5 A' 1487 1427 10.79 18.51 0.65 0.79
6 A' 1458 1398 30.53 18.01 0.45 0.62
7 A' 1154 1107 14.98 1.99 0.59 0.74
8 A' 904 867 30.66 7.14 0.21 0.34
9 A' 647 621 30.58 0.42 0.67 0.80
10 A' 167 160 17.66 1.82 0.68 0.81
11 A" 3116 2990 21.56 77.64 0.75 0.86
12 A" 1504 1443 7.75 14.89 0.75 0.86
13 A" 1128 1083 0.02 1.69 0.75 0.86
14 A" 605 581 27.43 0.67 0.75 0.86
15 A" 51 49 2.62 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11197.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10743.2 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 PBE1PBE/6-311G**
ABC
2.77816 0.14529 0.14177

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.312 1.139 0.000
N2 0.000 0.569 0.000
C3 -0.548 -0.494 0.000
O4 -1.194 -1.469 0.000
H5 1.228 2.226 0.000
H6 1.873 0.837 0.889
H7 1.873 0.837 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43042.47523.61671.09051.09391.0939
N21.43041.19582.36162.06312.09052.0905
C32.47521.19581.16933.24912.90262.9026
O43.61672.36161.16934.41833.93893.9389
H51.09052.06313.24914.41831.77071.7707
H61.09392.09052.90263.93891.77071.7790
H71.09392.09052.90263.93891.77071.7790

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 140.789 N2 C1 H5 109.110
N2 C1 H6 111.116 N2 C1 H7 111.116
N2 C3 O4 173.758 H5 C1 H6 108.307
H5 C1 H7 108.307 H6 C1 H7 108.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.207      
2 N -0.429      
3 C 0.502      
4 O -0.296      
5 H 0.146      
6 H 0.142      
7 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.503 1.566 0.000 2.953
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.229 -0.484 0.000
y -0.484 -24.600 0.000
z 0.000 0.000 -22.376
Traceless
 xyz
x 1.259 -0.484 0.000
y -0.484 -2.298 0.000
z 0.000 0.000 1.039
Polar
3z2-r22.077
x2-y22.372
xy-0.484
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.502 1.865 0.000
y 1.865 5.488 0.000
z 0.000 0.000 2.951


<r2> (average value of r2) Å2
<r2> 83.179
(<r2>)1/2 9.120