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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-132.626845
Energy at 298.15K-132.628685
HF Energy-132.626845
Nuclear repulsion energy58.776811
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' 3429 3402 62.48      
2 A' 3378 3351 4.91      
3 A' 2186 2169 71.26      
4 A' 1630 1616 20.77      
5 A' 1053 1045 7.75      
6 A' 669 664 237.48      
7 A' 464 460 40.97      
8 A' 260 258 40.83      
9 A" 3458 3430 9.24      
10 A" 1190 1181 0.05      
11 A" 603 598 28.71      
12 A" 321 318 3.33      

Unscaled Zero Point Vibrational Energy (zpe) 9320.7 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 9245.2 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 BLYP/6-31G*
ABC
9.85911 0.30505 0.29896

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 0.106 1.378 0.000
C2 0.000 0.162 0.000
N3 0.014 -1.206 0.000
H4 0.073 2.448 0.000
H5 -0.403 -1.622 0.839
H6 -0.403 -1.622 -0.839

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22092.58581.07053.15683.1568
C21.22091.36792.28762.01232.0123
N32.58581.36793.65471.02501.0250
H41.07052.28763.65474.18334.1833
H53.15682.01231.02504.18331.6773
H63.15682.01231.02504.18331.6773

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.441 C2 C1 H4 173.285
C2 N3 H5 113.704 C2 N3 H6 113.704
H5 N3 H6 109.813
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 -0.301      
2 C 0.294      
3 N -0.779      
4 H 0.142      
5 H 0.322      
6 H 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.467 -1.329 0.000 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.361 2.429 0.000
y 2.429 -12.457 0.000
z 0.000 0.000 -16.614
Traceless
 xyz
x -4.826 2.429 0.000
y 2.429 5.531 0.000
z 0.000 0.000 -0.705
Polar
3z2-r2-1.410
x2-y2-6.904
xy2.429
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.784 0.461 0.000
y 0.461 6.524 0.000
z 0.000 0.000 2.248


<r2> (average value of r2) Å2
<r2> 44.881
(<r2>)1/2 6.699