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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-132.687647
Energy at 298.15K-132.689848
HF Energy-132.687647
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/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' 3582 3425 20.19      
2 A' 3492 3338 92.60      
3 A' 2273 2173 120.09      
4 A' 1647 1575 30.25      
5 A' 1093 1045 17.22      
6 A' 626 598 192.68      
7 A' 507 485 113.67      
8 A' 454 434 15.46      
9 A" 3672 3510 37.77      
10 A" 1209 1156 0.06      
11 A" 694 664 38.88      
12 A" 375 358 9.91      

Unscaled Zero Point Vibrational Energy (zpe) 9812.0 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 9380.2 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/cc-pVTZ
ABC
10.29865 0.31435 0.30763

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.042 1.359 0.000
C2 0.000 0.162 0.000
N3 0.115 -1.183 0.000
H4 -0.089 2.418 0.000
H5 -0.230 -1.630 0.834
H6 -0.230 -1.630 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19812.54711.06043.10903.1090
C21.19811.34982.25841.98981.9898
N32.54711.34983.60741.00741.0074
H41.06042.25843.60744.13584.1358
H53.10901.98981.00744.13581.6690
H63.10901.98981.00744.13581.6690

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.144 C2 C1 H4 179.484
C2 N3 H5 114.375 C2 N3 H6 114.375
H5 N3 H6 111.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.428      
2 C 0.182      
3 N -0.176      
4 H 0.115      
5 H 0.153      
6 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.027 -1.503 0.000 1.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.303 1.721 0.000
y 1.721 -12.054 0.000
z 0.000 0.000 -16.997
Traceless
 xyz
x -5.778 1.721 0.000
y 1.721 6.597 0.000
z 0.000 0.000 -0.819
Polar
3z2-r2-1.638
x2-y2-8.249
xy1.721
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.860 -0.070 0.000
y -0.070 6.820 0.000
z 0.000 0.000 3.049


<r2> (average value of r2) Å2
<r2> 44.085
(<r2>)1/2 6.640