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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/SDD

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/SDD
 hartrees
Energy at 0K-132.618345
Energy at 298.15K-132.620396
HF Energy-132.618345
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/SDD
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' 3691 3691 43.98      
2 A' 3529 3529 88.87      
3 A' 2267 2267 148.03      
4 A' 1675 1675 65.43      
5 A' 1119 1119 21.23      
6 A' 523 523 119.48      
7 A' 483 483 120.88      
8 A' 390 390 365.41      
9 A" 3829 3829 47.66      
10 A" 1153 1153 9.03      
11 A" 750 750 58.32      
12 A" 370 370 18.88      

Unscaled Zero Point Vibrational Energy (zpe) 9888.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9888.6 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/SDD
ABC
11.16061 0.30718 0.29896

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 1.383 0.000
C2 0.000 0.163 0.000
N3 0.006 -1.188 0.000
H4 -0.009 2.447 0.000
H5 0.006 -1.700 0.866
H6 0.006 -1.700 -0.866

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22032.57121.06373.20253.2025
C21.22031.35092.28402.05422.0542
N32.57121.35093.63491.00581.0058
H41.06372.28403.63494.23644.2364
H53.20252.05421.00584.23641.7313
H63.20252.05421.00584.23641.7313

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.902 C2 C1 H4 179.782
C2 N3 H5 120.606 C2 N3 H6 120.606
H5 N3 H6 118.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.460      
2 C 0.193      
3 N -0.709      
4 H 0.277      
5 H 0.350      
6 H 0.350      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.007 -1.860 0.000 1.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.839 -0.022 0.000
y -0.022 -10.811 0.000
z 0.000 0.000 -16.596
Traceless
 xyz
x -7.136 -0.022 0.000
y -0.022 7.907 0.000
z 0.000 0.000 -0.771
Polar
3z2-r2-1.541
x2-y2-10.029
xy-0.022
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.769 -0.027 0.000
y -0.027 6.525 0.000
z 0.000 0.000 2.031


<r2> (average value of r2) Å2
<r2> 44.829
(<r2>)1/2 6.695