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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: B97D3/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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-207.947868
Energy at 298.15K 
HF Energy-207.947868
Nuclear repulsion energy103.698450
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 B97D3/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' 3070 3023 16.96 76.76 0.62 0.77
2 A' 2977 2932 55.02 236.48 0.02 0.04
3 A' 2311 2276 938.91 1.72 0.11 0.19
4 A' 1476 1453 1.07 4.61 0.24 0.38
5 A' 1446 1424 15.71 11.33 0.42 0.59
6 A' 1416 1394 30.15 28.13 0.19 0.31
7 A' 1132 1115 16.87 0.76 0.74 0.85
8 A' 853 840 28.34 8.33 0.11 0.20
9 A' 624 615 23.23 0.80 0.43 0.61
10 A' 180 177 15.12 2.69 0.60 0.75
11 A" 3037 2991 23.42 79.43 0.75 0.86
12 A" 1476 1454 5.93 7.72 0.75 0.86
13 A" 1106 1089 0.04 0.29 0.75 0.86
14 A" 568 559 15.97 0.57 0.75 0.86
15 A" 56 55 1.54 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10863.6 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 10697.4 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 B97D3/aug-cc-pVTZ
ABC
2.56946 0.14495 0.14088

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 1.086 0.000
N2 0.000 0.594 0.000
C3 -0.563 -0.472 0.000
O4 -1.238 -1.439 0.000
H5 1.338 2.177 0.000
H6 1.897 0.747 0.892
H7 1.897 0.747 -0.892

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.44482.47353.62221.09171.09541.0954
N21.44481.20572.38112.07242.10182.1018
C32.47351.20571.18003.26032.88652.8865
O43.62222.38111.18004.44023.92513.9251
H51.09172.07243.26034.44021.77581.7758
H61.09542.10182.88653.92511.77581.7835
H71.09542.10182.88653.92511.77581.7835

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 137.708 N2 C1 H5 108.778
N2 C1 H6 110.922 N2 C1 H7 110.922
N2 C3 O4 172.901 H5 C1 H6 108.576
H5 C1 H7 108.576 H6 C1 H7 109.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.194      
2 N 0.110      
3 C -0.168      
4 O -0.320      
5 H 0.191      
6 H 0.191      
7 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.440 1.471 0.000 2.849
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.681 -0.605 0.000
y -0.605 -24.927 0.000
z 0.000 0.000 -22.690
Traceless
 xyz
x 1.128 -0.605 0.000
y -0.605 -2.241 0.000
z 0.000 0.000 1.113
Polar
3z2-r22.227
x2-y22.246
xy-0.605
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.934 1.958 0.000
y 1.958 6.476 0.000
z 0.000 0.000 4.059


<r2> (average value of r2) Å2
<r2> 83.769
(<r2>)1/2 9.153