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All results from a given calculation for HCCOH (ethynol)

using model chemistry: B3LYPultrafine/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-152.604828
Energy at 298.15K-152.605626
HF Energy-152.604828
Nuclear repulsion energy58.325436
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/cc-pVTZ
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' 3765 3640 105.89      
2 A' 3489 3373 95.77      
3 A' 2283 2207 142.81      
4 A' 1257 1215 89.96      
5 A' 1084 1048 95.45      
6 A' 650 628 49.24      
7 A' 402 388 11.86      
8 A" 546 528 63.90      
9 A" 441 426 4.45      

Unscaled Zero Point Vibrational Energy (zpe) 6957.7 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 6726.0 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/cc-pVTZ
ABC
22.63061 0.32627 0.32163

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.123 0.000
C2 0.064 1.319 0.000
O3 -0.152 -1.176 0.000
H4 0.128 2.376 0.000
H5 0.707 -1.616 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.19691.30872.25611.8778
C21.19692.50431.05923.0044
O31.30872.50433.56330.9655
H42.25611.05923.56334.0339
H51.87783.00440.96554.0339

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.598 C1 O3 H5 110.416
C2 C1 O3 176.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.101      
2 C -0.285      
3 O -0.203      
4 H 0.153      
5 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.478 -0.859 0.000 1.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.231 -2.599 0.002
y -2.599 -12.257 -0.008
z 0.002 -0.008 -18.741
Traceless
 xyz
x -1.732 -2.599 0.002
y -2.599 5.729 -0.008
z 0.002 -0.008 -3.997
Polar
3z2-r2-7.994
x2-y2-4.974
xy-2.599
xz0.002
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.568 -0.022 0.000
y -0.022 5.801 0.007
z 0.000 0.007 2.420


<r2> (average value of r2) Å2
<r2> 40.619
(<r2>)1/2 6.373