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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-207.829479
Energy at 298.15K 
HF Energy-207.829479
Nuclear repulsion energy103.536713
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 PBEPBEultrafine/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' 3049 3049 12.22 77.63 0.63 0.77
2 A' 2959 2959 49.40 222.68 0.02 0.04
3 A' 2322 2322 921.63 1.60 0.05 0.10
4 A' 1470 1470 0.85 13.35 0.14 0.24
5 A' 1435 1435 13.22 16.14 0.44 0.61
6 A' 1405 1405 26.53 17.62 0.24 0.39
7 A' 1116 1116 15.77 0.68 0.75 0.86
8 A' 865 865 24.05 7.93 0.11 0.19
9 A' 615 615 22.82 0.75 0.50 0.67
10 A' 176 176 15.79 2.86 0.61 0.76
11 A" 3019 3019 17.38 80.51 0.75 0.86
12 A" 1455 1455 7.31 8.23 0.75 0.86
13 A" 1091 1091 0.00 0.29 0.75 0.86
14 A" 564 564 15.83 0.47 0.75 0.86
15 A" 47 47 1.75 0.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10793.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10793.8 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
2.68090 0.14364 0.13998

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.331 1.127 0.000
N2 0.000 0.584 0.000
C3 -0.551 -0.491 0.000
O4 -1.217 -1.469 0.000
H5 1.271 2.222 0.000
H6 1.889 0.813 0.894
H7 1.889 0.813 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43812.48253.63741.09621.09961.0996
N21.43811.20782.38562.07352.10232.1023
C32.48251.20781.18243.26812.90732.9073
O43.63742.38561.18244.45053.95583.9558
H51.09622.07353.26814.45051.77951.7795
H61.09962.10232.90733.95581.77951.7880
H71.09962.10232.90733.95581.77951.7880

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 139.351 N2 C1 H5 109.065
N2 C1 H6 111.178 N2 C1 H7 111.178
N2 C3 O4 172.858 H5 C1 H6 108.273
H5 C1 H7 108.273 H6 C1 H7 108.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.060      
2 N -0.935      
3 C 1.113      
4 O -0.607      
5 H 0.120      
6 H 0.124      
7 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.423 1.566 0.000 2.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.815 -0.556 0.000
y -0.556 -25.012 0.000
z 0.000 0.000 -22.860
Traceless
 xyz
x 1.121 -0.556 0.000
y -0.556 -2.175 0.000
z 0.000 0.000 1.054
Polar
3z2-r22.108
x2-y22.197
xy-0.556
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.817 2.037 0.000
y 2.037 6.564 0.000
z 0.000 0.000 3.968


<r2> (average value of r2) Å2
<r2> 84.331
(<r2>)1/2 9.183