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All results from a given calculation for HCCOH (ethynol)

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-152.508065
Energy at 298.15K-152.508704
HF Energy-152.508065
Nuclear repulsion energy58.055101
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 B97D3/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' 3687 3635 80.84      
2 A' 3447 3398 84.62      
3 A' 2229 2198 140.44      
4 A' 1237 1219 79.95      
5 A' 1058 1043 92.12      
6 A' 600 591 49.08      
7 A' 368 363 9.14      
8 A" 508 501 51.27      
9 A" 373 368 14.25      

Unscaled Zero Point Vibrational Energy (zpe) 6752.9 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 6658.3 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 B97D3/cc-pVTZ
ABC
22.28172 0.32327 0.31864

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.122 0.000
C2 0.012 1.327 0.000
O3 -0.110 -1.187 0.000
H4 0.036 2.390 0.000
H5 0.771 -1.590 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20571.31272.26891.8769
C21.20572.51671.06323.0139
O31.31272.51673.57970.9690
H42.26891.06323.57974.0469
H51.87693.01390.96904.0469

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 173.822 C1 O3 H5 106.617
C2 C1 O3 169.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.108      
2 C -0.283      
3 O -0.183      
4 H 0.126      
5 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.471 -0.892 0.000 1.720
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.927 -2.724 0.000
y -2.724 -12.348 0.000
z 0.000 0.000 -18.644
Traceless
 xyz
x -1.431 -2.724 0.000
y -2.724 5.438 0.000
z 0.000 0.000 -4.007
Polar
3z2-r2-8.014
x2-y2-4.579
xy-2.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.625 -0.158 0.000
y -0.158 5.982 0.000
z 0.000 0.000 2.467


<r2> (average value of r2) Å2
<r2> 40.831
(<r2>)1/2 6.390