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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-130.834301
Energy at 298.15K-130.836454
HF Energy-130.834301
Nuclear repulsion energy58.391244
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 PBE1PBE/STO-3G
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' 3741 3300 174.46      
2 A' 3610 3185 4.20      
3 A' 2486 2193 7.85      
4 A' 1810 1596 10.03      
5 A' 1109 979 6.71      
6 A' 740 653 173.16      
7 A' 631 557 41.69      
8 A' 431 380 12.38      
9 A" 3789 3342 1.22      
10 A" 1336 1179 0.30      
11 A" 786 693 15.24      
12 A" 381 336 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 10425.0 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 9195.9 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 PBE1PBE/STO-3G
ABC
9.00730 0.30196 0.29672

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 1.378 0.000
C2 0.000 0.177 0.000
N3 0.109 -1.223 0.000
H4 0.000 2.453 0.000
H5 -0.385 -1.612 0.842
H6 -0.385 -1.612 -0.842

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20092.60271.07503.13033.1303
C21.20091.40382.27592.01452.0145
N32.60271.40383.67711.05071.0507
H41.07502.27593.67714.16924.1692
H53.13032.01451.05074.16921.6838
H63.13032.01451.05074.16921.6838

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.492 C2 C1 H4 179.869
C2 N3 H5 109.473 C2 N3 H6 109.473
H5 N3 H6 106.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.162      
2 C 0.011      
3 N -0.369      
4 H 0.115      
5 H 0.203      
6 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.570 -0.792 0.000 1.758
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.514 2.546 0.000
y 2.546 -12.434 0.000
z 0.000 0.000 -15.503
Traceless
 xyz
x -3.545 2.546 0.000
y 2.546 4.074 0.000
z 0.000 0.000 -0.529
Polar
3z2-r2-1.058
x2-y2-5.080
xy2.546
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.504 0.192 0.000
y 0.192 4.154 0.000
z 0.000 0.000 1.084


<r2> (average value of r2) Å2
<r2> 44.517
(<r2>)1/2 6.672