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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-132.600300
Energy at 298.15K-132.601895
HF Energy-132.600300
Nuclear repulsion energy58.820338
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
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' 3511 3484 13.63      
2 A' 3445 3419 71.73      
3 A' 2196 2179 92.73      
4 A' 1649 1636 39.62      
5 A' 1088 1079 15.72      
6 A' 482 479 0.03      
7 A' 315 313 475.66      
8 A' 234 232 53.63      
9 A" 3617 3590 22.76      
10 A" 1142 1133 7.69      
11 A" 662 657 39.23      
12 A" 334 331 8.87      

Unscaled Zero Point Vibrational Energy (zpe) 9337.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 9266.3 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
ABC
11.11070 0.30453 0.29641

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 1.389 0.000
C2 0.000 0.163 0.000
N3 -0.001 -1.191 0.000
H4 0.001 2.458 0.000
H5 -0.001 -1.717 0.868
H6 -0.001 -1.717 -0.868

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22672.58041.06883.22553.2255
C21.22671.35372.29552.07052.0705
N32.58041.35373.64921.01471.0147
H41.06882.29553.64924.26474.2647
H53.22552.07051.01474.26471.7352
H63.22552.07051.01474.26471.7352

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.989 C2 C1 H4 179.994
C2 N3 H5 121.240 C2 N3 H6 121.240
H5 N3 H6 117.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 C 0.154      
3 N -0.744      
4 H 0.172      
5 H 0.315      
6 H 0.315      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 -1.912 0.000 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.147 0.005 0.000
y 0.005 -11.180 0.000
z 0.000 0.000 -16.296
Traceless
 xyz
x -6.408 0.005 0.000
y 0.005 7.041 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.265
x2-y2-8.966
xy0.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.307 0.003 0.000
y 0.003 6.517 0.000
z 0.000 0.000 1.980


<r2> (average value of r2) Å2
<r2> 45.031
(<r2>)1/2 6.711