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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-131.818708
Energy at 298.15K-131.820994
HF Energy-131.818708
Nuclear repulsion energy59.669518
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 HF/LANL2DZ
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' 3863 3476 58.10      
2 A' 3696 3326 91.56      
3 A' 2380 2142 144.95      
4 A' 1805 1624 67.28      
5 A' 1160 1043 24.78      
6 A' 667 600 179.45      
7 A' 550 495 7.39      
8 A' 374 336 481.96      
9 A" 4007 3606 67.52      
10 A" 1260 1134 6.65      
11 A" 881 793 54.68      
12 A" 428 385 22.93      

Unscaled Zero Point Vibrational Energy (zpe) 10534.8 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9480.2 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 HF/LANL2DZ
ABC
11.47602 0.31255 0.30426

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 1.369 0.000
C2 0.000 0.167 0.000
N3 0.006 -1.180 0.000
H4 -0.008 2.420 0.000
H5 0.006 -1.685 0.854
H6 0.006 -1.685 -0.854

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20222.54921.05143.17143.1714
C21.20221.34712.25352.03942.0394
N32.54921.34713.60060.99190.9919
H41.05142.25353.60064.19354.1935
H53.17142.03940.99194.19351.7073
H63.17142.03940.99194.19351.7073

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.890 C2 C1 H4 179.659
C2 N3 H5 120.612 C2 N3 H6 120.612
H5 N3 H6 118.775
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.428      
2 C 0.227      
3 N -0.811      
4 H 0.267      
5 H 0.372      
6 H 0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.009 -1.651 0.000 1.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.264 -0.010 0.000
y -0.010 -11.464 0.000
z 0.000 0.000 -17.056
Traceless
 xyz
x -7.004 -0.010 0.000
y -0.010 7.696 0.000
z 0.000 0.000 -0.691
Polar
3z2-r2-1.383
x2-y2-9.800
xy-0.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.677 -0.027 0.000
y -0.027 6.137 0.000
z 0.000 0.000 1.955


<r2> (average value of r2) Å2
<r2> 44.523
(<r2>)1/2 6.673