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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B3PW91/daug-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 B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-207.936976
Energy at 298.15K 
HF Energy-207.936976
Nuclear repulsion energy103.823297
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 B3PW91/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3142 3142 12.94 71.44 0.66 0.79
2 A' 3039 3039 49.67 224.27 0.01 0.03
3 A' 2377 2377 1071.90 1.90 0.04 0.08
4 A' 1509 1509 2.20 16.30 0.13 0.23
5 A' 1461 1461 11.94 12.14 0.50 0.67
6 A' 1430 1430 29.38 11.26 0.24 0.39
7 A' 1141 1141 17.77 0.61 0.74 0.85
8 A' 895 895 26.57 9.01 0.11 0.19
9 A' 642 642 27.10 0.72 0.42 0.59
10 A' 179 179 17.24 2.36 0.59 0.75
11 A" 3114 3114 18.13 71.76 0.75 0.86
12 A" 1479 1479 7.30 7.30 0.75 0.86
13 A" 1116 1116 0.01 0.28 0.75 0.86
14 A" 591 591 19.50 0.60 0.75 0.86
15 A" 67 67 1.75 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11089.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11089.4 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 B3PW91/daug-cc-pVDZ
ABC
2.61000 0.14507 0.14114

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.344 1.100 0.000
N2 0.000 0.590 0.000
C3 -0.558 -0.479 0.000
O4 -1.226 -1.449 0.000
H5 1.307 2.194 0.000
H6 1.890 0.770 0.894
H7 1.890 0.770 -0.894

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43782.47203.61931.09511.09831.0983
N21.43781.20542.37852.06912.09892.0989
C32.47201.20541.17753.25902.89022.8902
O43.61932.37851.17754.43653.92823.9282
H51.09512.06913.25904.43651.78011.7801
H61.09832.09892.89023.92821.78011.7882
H71.09832.09892.89023.92821.78011.7882

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.356 N2 C1 H5 108.797
N2 C1 H6 110.994 N2 C1 H7 110.994
N2 C3 O4 173.052 H5 C1 H6 108.498
H5 C1 H7 108.498 H6 C1 H7 108.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.384      
2 N 0.355      
3 C -0.288      
4 O -0.865      
5 H -0.225      
6 H -0.181      
7 H -0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.497 1.530 0.000 2.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.633 -0.585 0.000
y -0.585 -24.936 0.000
z 0.000 0.000 -22.688
Traceless
 xyz
x 1.179 -0.585 0.000
y -0.585 -2.275 0.000
z 0.000 0.000 1.096
Polar
3z2-r22.192
x2-y22.303
xy-0.585
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.727 1.905 0.000
y 1.905 6.390 0.000
z 0.000 0.000 3.980


<r2> (average value of r2) Å2
<r2> 83.665
(<r2>)1/2 9.147