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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-132.643630
Energy at 298.15K-132.645596
HF Energy-132.643630
Nuclear repulsion energy59.062377
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 BLYP/6-31G(2df,p)
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' 3455 3436 70.40      
2 A' 3405 3386 8.24      
3 A' 2196 2184 72.69      
4 A' 1596 1587 16.84      
5 A' 1051 1045 8.54      
6 A' 652 648 189.02      
7 A' 471 468 59.12      
8 A' 309 307 32.57      
9 A" 3480 3460 14.59      
10 A" 1171 1164 0.01      
11 A" 642 639 32.46      
12 A" 350 348 4.72      

Unscaled Zero Point Vibrational Energy (zpe) 9388.6 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 9336.9 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 BLYP/6-31G(2df,p)
ABC
10.00382 0.30799 0.30175

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 1.375 0.000
C2 0.000 0.161 0.000
N3 0.090 -1.197 0.000
H4 -0.018 2.440 0.000
H5 -0.297 -1.638 0.836
H6 -0.297 -1.638 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21372.57361.06523.14023.1402
C21.21371.36132.27882.00592.0059
N32.57361.36133.63861.02151.0215
H41.06522.27883.63864.17194.1719
H53.14022.00591.02154.17191.6722
H63.14022.00591.02154.17191.6722

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.355 C2 C1 H4 179.376
C2 N3 H5 113.909 C2 N3 H6 113.909
H5 N3 H6 109.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.138      
2 C 0.065      
3 N -0.570      
4 H 0.149      
5 H 0.247      
6 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.097 -1.420 0.000 1.795
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.542 1.980 0.000
y 1.980 -12.276 0.000
z 0.000 0.000 -16.663
Traceless
 xyz
x -5.072 1.980 0.000
y 1.980 5.827 0.000
z 0.000 0.000 -0.755
Polar
3z2-r2-1.510
x2-y2-7.266
xy1.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.221 0.098 0.000
y 0.098 6.635 0.000
z 0.000 0.000 2.626


<r2> (average value of r2) Å2
<r2> 44.571
(<r2>)1/2 6.676