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All results from a given calculation for HCCNH2 (Ethynamine)

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-132.646033
Energy at 298.15K-132.648160
HF Energy-132.646033
Nuclear repulsion energy 
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' 3609 3437 27.01      
2 A' 3505 3338 94.00      
3 A' 2276 2168 140.87      
4 A' 1652 1573 39.48      
5 A' 1104 1051 21.50      
6 A' 581 553 187.33      
7 A' 490 467 193.68      
8 A' 434 413 15.05      
9 A" 3714 3537 50.70      
10 A" 1197 1140 0.17      
11 A" 683 650 53.98      
12 A" 376 358 10.38      

Unscaled Zero Point Vibrational Energy (zpe) 9809.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 9341.6 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
10.34331 0.31081 0.30394

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 -0.060 1.368 0.000
C2 0.000 0.161 0.000
N3 0.123 -1.187 0.000
H4 -0.119 2.431 0.000
H5 -0.192 -1.648 0.841
H6 -0.192 -1.648 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20882.56111.06503.13433.1343
C21.20881.35292.27382.00442.0044
N32.56111.35293.62611.01021.0102
H41.06502.27383.62614.16624.1662
H53.13432.00441.01024.16621.6829
H63.13432.00441.01024.16621.6829

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.611 C2 C1 H4 179.624
C2 N3 H5 115.265 C2 N3 H6 115.265
H5 N3 H6 112.813
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 0.210      
2 C -0.366      
3 N -0.729      
4 H 0.235      
5 H 0.325      
6 H 0.325      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.083 -1.509 0.000 1.857
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.980 1.723 0.000
y 1.723 -12.002 0.000
z 0.000 0.000 -17.129
Traceless
 xyz
x -6.414 1.723 0.000
y 1.723 7.052 0.000
z 0.000 0.000 -0.638
Polar
3z2-r2-1.276
x2-y2-8.978
xy1.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.899 -0.208 0.000
y -0.208 7.087 0.000
z 0.000 0.000 2.836


<r2> (average value of r2) Å2
<r2> 44.650
(<r2>)1/2 6.682