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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-130.932512
Energy at 298.15K-130.934653
HF Energy-130.932512
Nuclear repulsion energy58.399022
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 B1B95/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' 3728 3292 171.52      
2 A' 3595 3174 4.47      
3 A' 2479 2189 8.20      
4 A' 1800 1589 10.08      
5 A' 1104 975 5.99      
6 A' 716 632 177.80      
7 A' 632 558 40.72      
8 A' 432 381 12.83      
9 A" 3774 3332 1.31      
10 A" 1324 1169 0.24      
11 A" 786 694 14.49      
12 A" 381 337 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 10375.1 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 9161.2 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 B1B95/STO-3G
ABC
9.04721 0.30202 0.29670

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.010 1.378 0.000
C2 0.000 0.177 0.000
N3 0.101 -1.222 0.000
H4 0.010 2.453 0.000
H5 -0.388 -1.614 0.843
H6 -0.388 -1.614 -0.843

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20112.60181.07503.13403.1340
C21.20111.40282.27612.01712.0171
N32.60181.40283.67631.05011.0501
H41.07502.27613.67634.17254.1725
H53.13402.01711.05014.17251.6862
H63.13402.01711.05014.17251.6862

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.401 C2 C1 H4 179.505
C2 N3 H5 109.805 C2 N3 H6 109.805
H5 N3 H6 106.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 C 0.014      
3 N -0.374      
4 H 0.112      
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
  -1.567 -0.792 0.000 1.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.499 2.544 0.000
y 2.544 -12.461 0.000
z 0.000 0.000 -15.489
Traceless
 xyz
x -3.524 2.544 0.000
y 2.544 4.034 0.000
z 0.000 0.000 -0.509
Polar
3z2-r2-1.018
x2-y2-5.039
xy2.544
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.502 0.215 0.000
y 0.215 4.186 0.000
z 0.000 0.000 1.093


<r2> (average value of r2) Å2
<r2> 44.522
(<r2>)1/2 6.673