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All results from a given calculation for HCCOH (ethynol)

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-152.498080
Energy at 298.15K-152.498548
Nuclear repulsion energy57.483306
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' 3612 3585 48.10      
2 A' 3437 3411 77.89      
3 A' 2223 2206 97.66      
4 A' 1219 1210 83.18      
5 A' 1046 1037 81.80      
6 A' 575 570 39.07      
7 A' 320 317 8.00      
8 A" 492 488 32.62      
9 A" 308 306 17.61      

Unscaled Zero Point Vibrational Energy (zpe) 6615.6 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 6564.7 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
21.57035 0.31700 0.31241

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 0.000 0.123 0.000
C2 0.002 1.340 0.000
O3 -0.105 -1.200 0.000
H4 0.034 2.409 0.000
H5 0.793 -1.592 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.21711.32752.28571.8901
C21.21712.54271.06883.0376
O31.32752.54273.61140.9799
H42.28571.06883.61144.0727
H51.89013.03760.97994.0727

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 178.441 C1 O3 H5 109.073
C2 C1 O3 175.572
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 0.150      
2 C -0.083      
3 O -0.505      
4 H 0.107      
5 H 0.331      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.603 -0.774 0.000 1.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.363 -2.784 0.000
y -2.784 -12.213 0.000
z 0.000 0.000 -18.092
Traceless
 xyz
x -1.211 -2.784 0.000
y -2.784 5.015 0.000
z 0.000 0.000 -3.804
Polar
3z2-r2-7.609
x2-y2-4.150
xy-2.784
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.797 -0.236 0.000
y -0.236 5.601 0.000
z 0.000 0.000 1.481


<r2> (average value of r2) Å2
<r2> 41.164
(<r2>)1/2 6.416