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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-132.643145
Energy at 298.15K-132.645368
HF Energy-132.643145
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-pVDZ
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' 3560 3392 16.41      
2 A' 3512 3346 89.66      
3 A' 2288 2179 98.54      
4 A' 1626 1549 24.26      
5 A' 1097 1045 14.74      
6 A' 689 656 201.88      
7 A' 523 498 90.42      
8 A' 436 415 12.18      
9 A" 3653 3480 34.58      
10 A" 1215 1158 0.14      
11 A" 706 672 31.57      
12 A" 368 350 7.44      

Unscaled Zero Point Vibrational Energy (zpe) 9835.9 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 9369.7 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-pVDZ
ABC
9.93995 0.30975 0.30358

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.058 1.369 0.000
C2 0.000 0.159 0.000
N3 0.138 -1.192 0.000
H4 -0.119 2.437 0.000
H5 -0.248 -1.628 0.834
H6 -0.248 -1.628 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21112.56801.07053.11623.1162
C21.21111.35782.28161.98731.9873
N32.56801.35783.63841.01681.0168
H41.07052.28163.63844.15204.1520
H53.11621.98731.01684.15201.6672
H63.11621.98731.01684.15201.6672

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.926 C2 C1 H4 179.475
C2 N3 H5 112.839 C2 N3 H6 112.839
H5 N3 H6 110.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.101      
2 C 0.044      
3 N -0.219      
4 H 0.017      
5 H 0.129      
6 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.162 -1.487 0.000 1.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.902 1.814 0.000
y 1.814 -11.884 0.000
z 0.000 0.000 -16.874
Traceless
 xyz
x -5.523 1.814 0.000
y 1.814 6.504 0.000
z 0.000 0.000 -0.981
Polar
3z2-r2-1.961
x2-y2-8.018
xy1.814
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.012 -0.091 0.000
y -0.091 6.506 0.000
z 0.000 0.000 2.366


<r2> (average value of r2) Å2
<r2> 44.388
(<r2>)1/2 6.662