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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: TPSSh/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at TPSSh/daug-cc-pVTZ
 hartrees
Energy at 0K-208.077421
Energy at 298.15K 
HF Energy-208.077421
Nuclear repulsion energy103.937912
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 TPSSh/daug-cc-pVTZ
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' 3120 3120 14.71 72.70 0.63 0.77
2 A' 3029 3029 47.50 223.12 0.01 0.03
3 A' 2346 2346 1030.80 1.43 0.06 0.11
4 A' 1512 1512 1.93 4.34 0.34 0.51
5 A' 1482 1482 14.79 11.33 0.36 0.53
6 A' 1449 1449 32.14 24.05 0.19 0.31
7 A' 1156 1156 20.08 0.72 0.75 0.86
8 A' 868 868 29.29 9.18 0.11 0.20
9 A' 637 637 25.76 0.64 0.44 0.61
10 A' 175 175 16.57 2.24 0.61 0.76
11 A" 3090 3090 20.30 73.07 0.75 0.86
12 A" 1516 1516 5.95 7.38 0.75 0.86
13 A" 1129 1129 0.17 0.32 0.75 0.86
14 A" 585 585 17.76 0.59 0.75 0.86
15 A" 47 47 1.81 0.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11069.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11069.4 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 TPSSh/daug-cc-pVTZ
ABC
2.64647 0.14500 0.14114

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.346 1.104 0.000
N2 0.000 0.584 0.000
C3 -0.557 -0.480 0.000
O4 -1.226 -1.447 0.000
H5 1.297 2.191 0.000
H6 1.887 0.777 0.890
H7 1.887 0.777 -0.890

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44332.47653.62301.08841.09181.0918
N21.44331.20102.37272.06562.09532.0953
C32.47651.20101.17613.25202.88892.8889
O43.62302.37271.17614.42813.92773.9277
H51.08842.06563.25204.42811.77261.7726
H61.09182.09532.88893.92771.77261.7804
H71.09182.09532.88893.92771.77261.7804

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.772 N2 C1 H5 108.538
N2 C1 H6 110.717 N2 C1 H7 110.717
N2 C3 O4 173.032 H5 C1 H6 108.786
H5 C1 H7 108.786 H6 C1 H7 109.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.129      
2 N -0.178      
3 C 0.204      
4 O -0.885      
5 H 0.211      
6 H 0.388      
7 H 0.388      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.495 1.547 0.000 2.936
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.746 1.910 0.000
y 1.910 6.377 0.000
z 0.000 0.000 3.975


<r2> (average value of r2) Å2
<r2> 83.594
(<r2>)1/2 9.143