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All results from a given calculation for HCCOH (ethynol)

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-151.714692
Energy at 298.15K-151.715287
Nuclear repulsion energy58.062971
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 LSDA/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' 3692 3623 90.37      
2 A' 3441 3377 103.00      
3 A' 2282 2240 114.53      
4 A' 1182 1160 62.28      
5 A' 1115 1094 127.33      
6 A' 577 566 46.17      
7 A' 361 355 11.02      
8 A" 495 486 33.87      
9 A" 372 365 25.76      

Unscaled Zero Point Vibrational Energy (zpe) 6758.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6632.5 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 LSDA/6-31G**
ABC
22.02990 0.32390 0.31920

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.115 0.000
C2 0.080 1.325 0.000
O3 -0.168 -1.176 0.000
H4 0.166 2.394 0.000
H5 0.698 -1.629 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.21341.30112.28601.8780
C21.21342.51331.07263.0182
O31.30112.51333.58580.9773
H42.28601.07263.58584.0582
H51.87803.01820.97734.0582

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.118 C1 O3 H5 110.213
C2 C1 O3 176.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.105      
2 C -0.130      
3 O -0.506      
4 H 0.164      
5 H 0.367      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.626 -1.008 0.000 1.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.680 -2.643 0.000
y -2.643 -11.540 0.000
z 0.000 0.000 -18.162
Traceless
 xyz
x -1.829 -2.643 0.000
y -2.643 5.881 0.000
z 0.000 0.000 -4.052
Polar
3z2-r2-8.104
x2-y2-5.140
xy-2.643
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.751 0.009 0.000
y 0.009 5.560 0.000
z 0.000 0.000 1.482


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000