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All results from a given calculation for CH3NCO (methylisocyante)

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-207.926412
Energy at 298.15K 
HF Energy-207.926412
Nuclear repulsion energy103.840486
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 wB97X-D/6-31+G**
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' 3170 3019 12.76 82.29 0.67 0.80
2 A' 3063 2917 49.41 180.17 0.01 0.03
3 A' 2419 2304 1186.50 2.08 0.01 0.01
4 A' 1543 1469 1.63 14.68 0.14 0.25
5 A' 1500 1429 12.16 19.19 0.54 0.70
6 A' 1475 1405 30.99 14.64 0.51 0.67
7 A' 1165 1109 16.92 2.02 0.67 0.80
8 A' 896 853 32.77 9.20 0.13 0.24
9 A' 624 595 33.27 0.68 0.65 0.79
10 A' 153 146 19.24 2.54 0.75 0.86
11 A" 3141 2991 18.57 79.17 0.75 0.86
12 A" 1518 1446 7.81 14.51 0.75 0.86
13 A" 1139 1085 0.04 1.20 0.75 0.86
14 A" 591 563 30.49 0.66 0.75 0.86
15 A" 59 56 3.27 1.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11227.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 10691.8 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 wB97X-D/6-31+G**
ABC
2.82360 0.14337 0.14007

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.305 1.166 0.000
N2 0.000 0.566 0.000
C3 -0.543 -0.505 0.000
O4 -1.188 -1.491 0.000
H5 1.193 2.251 0.000
H6 1.867 0.873 0.891
H7 1.867 0.873 -0.891

Atom - Atom Distances (Å)
  C1 N2 C3 O4 H5 H6 H7
C11.43672.49143.64321.09031.09381.0938
N21.43671.20002.37452.06482.09182.0918
C32.49141.20001.17813.25662.91572.9157
O43.64322.37451.17814.43463.96403.9640
H51.09032.06483.25664.43461.77421.7742
H61.09382.09182.91573.96401.77421.7820
H71.09382.09182.91573.96401.77421.7820

picture of methylisocyante state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 141.622 N2 C1 H5 108.819
N2 C1 H6 110.786 N2 C1 H7 110.786
N2 C3 O4 173.725 H5 C1 H6 108.647
H5 C1 H7 108.647 H6 C1 H7 109.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.378      
2 N -0.323      
3 C 0.646      
4 O -0.469      
5 H 0.177      
6 H 0.173      
7 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.738 1.791 0.000 3.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.588 -0.571 0.000
y -0.571 -25.173 0.000
z 0.000 0.000 -22.646
Traceless
 xyz
x 1.321 -0.571 0.000
y -0.571 -2.556 0.000
z 0.000 0.000 1.235
Polar
3z2-r22.469
x2-y22.585
xy-0.571
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.771 1.980 0.000
y 1.980 6.107 0.000
z 0.000 0.000 3.240


<r2> (average value of r2) Å2
<r2> 84.210
(<r2>)1/2 9.177