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All results from a given calculation for HCCOH (ethynol)

using model chemistry: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-152.477195
Energy at 298.15K-152.477955
HF Energy-152.477195
Nuclear repulsion energy 
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 wB97X-D/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' 3811 3615 104.08      
2 A' 3522 3341 81.89      
3 A' 2333 2213 115.88      
4 A' 1280 1214 114.53      
5 A' 1114 1057 84.95      
6 A' 668 634 46.23      
7 A' 388 368 12.00      
8 A" 528 501 48.72      
9 A" 436 414 16.50      

Unscaled Zero Point Vibrational Energy (zpe) 7040.2 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 6677.6 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 wB97X-D/6-31G*
ABC
22.18547 0.32422 0.31955

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
C2 -0.336 1.282 0.000
O3 0.199 -1.178 0.000
H4 -0.723 2.272 0.000
H5 1.152 -1.311 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20121.32152.26211.8436
C21.20122.51721.06312.9894
O31.32152.51723.57090.9624
H42.26211.06313.57094.0439
H51.84362.98940.96244.0439

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 174.882 C1 O3 H5 106.590
C2 C1 O3 172.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.134      
2 C -0.188      
3 O -0.626      
4 H 0.227      
5 H 0.454      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.641 -0.796 0.000 1.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.881 -2.438 0.000
y -2.438 -11.418 0.000
z 0.000 0.000 -18.149
Traceless
 xyz
x -2.097 -2.438 0.000
y -2.438 6.097 0.000
z 0.000 0.000 -4.000
Polar
3z2-r2-8.000
x2-y2-5.463
xy-2.438
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.711 0.223 0.000
y 0.223 5.281 0.000
z 0.000 0.000 1.449


<r2> (average value of r2) Å2
<r2> 40.429
(<r2>)1/2 6.358