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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-132.554146
Energy at 298.15K-132.556149
HF Energy-132.554146
Nuclear repulsion energy59.172845
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 PBEPBE/6-311G**
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' 3448 3417 4.32      
2 A' 3428 3396 86.82      
3 A' 2194 2174 100.91      
4 A' 1591 1576 28.11      
5 A' 1074 1064 12.44      
6 A' 601 595 204.95      
7 A' 474 469 89.88      
8 A' 350 346 27.37      
9 A" 3528 3496 23.84      
10 A" 1165 1155 0.05      
11 A" 655 649 37.08      
12 A" 350 347 8.14      

Unscaled Zero Point Vibrational Energy (zpe) 9428.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 9342.9 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 PBEPBE/6-311G**
ABC
10.10104 0.30943 0.30284

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.008 1.373 0.000
C2 0.000 0.158 0.000
N3 0.076 -1.193 0.000
H4 0.001 2.441 0.000
H5 -0.289 -1.638 0.841
H6 -0.289 -1.638 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21502.56661.06843.14033.1403
C21.21501.35292.28332.00422.0042
N32.56661.35293.63491.01971.0197
H41.06842.28333.63494.17524.1752
H53.14032.00421.01974.17521.6828
H63.14032.00421.01974.17521.6828

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.416 C2 C1 H4 179.264
C2 N3 H5 114.564 C2 N3 H6 114.564
H5 N3 H6 111.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 C 0.030      
3 N -0.535      
4 H 0.097      
5 H 0.226      
6 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.131 -1.622 0.000 1.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.176 2.056 0.000
y 2.056 -12.115 0.000
z 0.000 0.000 -16.990
Traceless
 xyz
x -5.623 2.056 0.000
y 2.056 6.469 0.000
z 0.000 0.000 -0.845
Polar
3z2-r2-1.690
x2-y2-8.061
xy2.056
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.248 0.106 0.000
y 0.106 6.880 0.000
z 0.000 0.000 2.571


<r2> (average value of r2) Å2
<r2> 44.628
(<r2>)1/2 6.680