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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-132.568685
Energy at 298.15K-132.570687
HF Energy-132.568685
Nuclear repulsion energy59.238106
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 PBEPBEultrafine/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' 3443 3419 4.56      
2 A' 3414 3391 89.43      
3 A' 2188 2173 108.51      
4 A' 1585 1574 24.03      
5 A' 1069 1062 12.68      
6 A' 613 609 187.81      
7 A' 468 465 83.86      
8 A' 351 349 27.83      
9 A" 3522 3498 27.18      
10 A" 1164 1156 0.04      
11 A" 646 642 39.23      
12 A" 348 345 7.81      

Unscaled Zero Point Vibrational Energy (zpe) 9404.9 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 9340.0 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 PBEPBEultrafine/cc-pVTZ
ABC
10.11397 0.31007 0.30353

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.013 1.371 0.000
C2 0.000 0.158 0.000
N3 0.072 -1.192 0.000
H4 0.014 2.439 0.000
H5 -0.299 -1.634 0.839
H6 -0.299 -1.634 -0.839

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21282.56401.06783.13523.1352
C21.21281.35252.28062.00112.0011
N32.56401.35253.63161.01831.0183
H41.06782.28063.63164.16984.1698
H53.13522.00111.01834.16981.6779
H63.13522.00111.01834.16981.6779

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.318 C2 C1 H4 179.446
C2 N3 H5 114.410 C2 N3 H6 114.410
H5 N3 H6 110.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.388      
2 C 0.127      
3 N -0.177      
4 H 0.122      
5 H 0.158      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.047 -1.597 0.000 1.909
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.282 2.019 0.000
y 2.019 -12.390 0.000
z 0.000 0.000 -17.162
Traceless
 xyz
x -5.506 2.019 0.000
y 2.019 6.332 0.000
z 0.000 0.000 -0.826
Polar
3z2-r2-1.652
x2-y2-7.892
xy2.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.925 0.117 0.000
y 0.117 7.199 0.000
z 0.000 0.000 3.128


<r2> (average value of r2) Å2
<r2> 44.665
(<r2>)1/2 6.683