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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: BLYP/aug-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 BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-208.024481
Energy at 298.15K 
HF Energy-208.024481
Nuclear repulsion energy103.212152
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 BLYP/aug-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' 3038 3028 14.74 79.17 0.59 0.74
2 A' 2955 2945 49.96 241.09 0.02 0.04
3 A' 2273 2265 935.67 1.65 0.09 0.16
4 A' 1466 1461 1.57 3.95 0.43 0.61
5 A' 1436 1431 20.70 7.45 0.50 0.67
6 A' 1402 1397 23.36 34.30 0.18 0.31
7 A' 1124 1121 17.59 0.82 0.73 0.84
8 A' 834 831 27.03 8.23 0.12 0.21
9 A' 612 610 23.77 0.77 0.46 0.63
10 A' 179 178 15.43 2.73 0.60 0.75
11 A" 3006 2995 20.60 81.92 0.75 0.86
12 A" 1470 1465 6.01 8.01 0.75 0.86
13 A" 1099 1095 0.05 0.31 0.75 0.86
14 A" 557 555 15.64 0.57 0.75 0.86
15 A" 53 52 1.63 0.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10750.4 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 10713.9 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 BLYP/aug-cc-pVTZ
ABC
2.61745 0.14295 0.13914

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.355 1.111 0.000
N2 0.000 0.589 0.000
C3 -0.560 -0.483 0.000
O4 -1.236 -1.458 0.000
H5 1.311 2.204 0.000
H6 1.902 0.784 0.893
H7 1.902 0.784 -0.893

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.45262.49183.64881.09351.09711.0971
N21.45261.20902.39072.08012.11022.1102
C32.49181.20901.18633.27382.90912.9091
O43.64882.39071.18634.46013.95833.9583
H51.09352.08013.27384.46011.77861.7786
H61.09712.11022.90913.95831.77861.7868
H71.09712.11022.90913.95831.77861.7868

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 138.666 N2 C1 H5 108.743
N2 C1 H6 110.943 N2 C1 H7 110.943
N2 C3 O4 172.855 H5 C1 H6 108.558
H5 C1 H7 108.558 H6 C1 H7 109.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.374      
2 N 0.099      
3 C -0.130      
4 O -0.328      
5 H 0.250      
6 H 0.242      
7 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.487 1.569 0.000 2.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.045 -0.641 0.000
y -0.641 -25.320 0.000
z 0.000 0.000 -23.019
Traceless
 xyz
x 1.124 -0.641 0.000
y -0.641 -2.288 0.000
z 0.000 0.000 1.164
Polar
3z2-r22.328
x2-y22.275
xy-0.641
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.028 2.020 0.000
y 2.020 6.656 0.000
z 0.000 0.000 4.130


<r2> (average value of r2) Å2
<r2> 84.850
(<r2>)1/2 9.211