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All results from a given calculation for HCCNH2 (Ethynamine)

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

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/6-31G
 hartrees
Energy at 0K-132.599838
Energy at 298.15K-132.601927
HF Energy-132.599838
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/6-31G
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' 3689 3689 39.77      
2 A' 3529 3529 80.79      
3 A' 2297 2297 110.18      
4 A' 1703 1703 60.47      
5 A' 1136 1136 19.75      
6 A' 518 518 64.38      
7 A' 493 493 203.73      
8 A' 405 405 350.63      
9 A" 3812 3812 47.52      
10 A" 1188 1188 9.75      
11 A" 750 750 44.66      
12 A" 376 376 14.00      

Unscaled Zero Point Vibrational Energy (zpe) 9947.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9947.7 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/6-31G
ABC
11.28381 0.31018 0.30188

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 1.376 0.000
C2 0.000 0.162 0.000
N3 0.003 -1.182 0.000
H4 -0.005 2.438 0.000
H5 0.002 -1.697 0.861
H6 0.002 -1.697 -0.861

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21312.55711.06263.19133.1913
C21.21311.34402.27572.04942.0494
N32.55711.34403.61971.00361.0036
H41.06262.27573.61974.22424.2242
H53.19132.04941.00364.22421.7218
H63.19132.04941.00364.22421.7218

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.975 C2 C1 H4 179.970
C2 N3 H5 120.929 C2 N3 H6 120.929
H5 N3 H6 118.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 C 0.129      
3 N -0.858      
4 H 0.261      
5 H 0.357      
6 H 0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.003 -1.788 0.000 1.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.249 -0.005 0.000
y -0.005 -10.891 0.000
z 0.000 0.000 -16.239
Traceless
 xyz
x -6.684 -0.005 0.000
y -0.005 7.353 0.000
z 0.000 0.000 -0.669
Polar
3z2-r2-1.338
x2-y2-9.358
xy-0.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.294 -0.010 0.000
y -0.010 6.186 0.000
z 0.000 0.000 1.890


<r2> (average value of r2) Å2
<r2> 44.336
(<r2>)1/2 6.659