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All results from a given calculation for HCCOH (ethynol)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-152.531145
Energy at 298.15K-152.531822
Nuclear repulsion energy57.957118
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 B3LYPultrafine/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' 3699 3544 73.17      
2 A' 3516 3368 80.79      
3 A' 2303 2206 106.68      
4 A' 1268 1215 104.18      
5 A' 1091 1045 81.99      
6 A' 627 600 41.81      
7 A' 366 351 10.07      
8 A" 528 506 41.05      
9 A" 398 382 15.73      

Unscaled Zero Point Vibrational Energy (zpe) 6897.8 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 6608.1 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 B3LYPultrafine/6-31G*
ABC
22.05142 0.32226 0.31762

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.123 0.000
C2 0.076 1.327 0.000
O3 -0.165 -1.183 0.000
H4 0.160 2.387 0.000
H5 0.703 -1.622 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20571.31662.26971.8817
C21.20572.52101.06413.0147
O31.31662.52103.58500.9725
H42.26971.06413.58504.0461
H51.88173.01470.97254.0461

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.068 C1 O3 H5 109.663
C2 C1 O3 176.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.135      
2 C -0.147      
3 O -0.606      
4 H 0.180      
5 H 0.437      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.639 -0.756 0.000 1.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.638 -2.656 0.000
y -2.656 -11.827 0.000
z 0.000 0.000 -18.128
Traceless
 xyz
x -1.661 -2.656 0.000
y -2.656 5.556 0.000
z 0.000 0.000 -3.895
Polar
3z2-r2-7.790
x2-y2-4.811
xy-2.656
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.719 -0.004 0.000
y -0.004 5.368 0.000
z 0.000 0.000 1.446


<r2> (average value of r2) Å2
<r2> 40.647
(<r2>)1/2 6.376