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All results from a given calculation for HCCOH (ethynol)

using model chemistry: B97D3/TZVP

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/TZVP
 hartrees
Energy at 0K-152.505567
Energy at 298.15K-152.506111
HF Energy-152.505567
Nuclear repulsion energy58.017064
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/TZVP
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' 3688 3635 85.53      
2 A' 3449 3399 90.89      
3 A' 2233 2200 147.79      
4 A' 1212 1195 74.40      
5 A' 1056 1041 103.42      
6 A' 581 573 57.51      
7 A' 327 323 8.98      
8 A" 503 496 57.40      
9 A" 344 339 17.99      

Unscaled Zero Point Vibrational Energy (zpe) 6696.4 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 6600.0 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 B97D3/TZVP
ABC
22.32037 0.32285 0.31824

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.121 0.000
C2 -0.005 1.328 0.000
O3 -0.096 -1.188 0.000
H4 0.011 2.393 0.000
H5 0.788 -1.586 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20711.31272.27141.8801
C21.20712.51801.06433.0200
O31.31272.51803.58210.9700
H42.27141.06433.58214.0534
H51.88013.02000.97004.0534

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 178.915 C1 O3 H5 109.997
C2 C1 O3 175.563
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.148      
2 C -0.327      
3 O -0.277      
4 H 0.147      
5 H 0.309      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.649 -0.791 0.000 1.829
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.004 -3.001 0.000
y -3.001 -12.595 0.000
z 0.000 0.000 -18.817
Traceless
 xyz
x -1.298 -3.001 0.000
y -3.001 5.316 0.000
z 0.000 0.000 -4.018
Polar
3z2-r2-8.035
x2-y2-4.409
xy-3.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.315 -0.194 0.000
y -0.194 6.057 0.000
z 0.000 0.000 2.168


<r2> (average value of r2) Å2
<r2> 40.979
(<r2>)1/2 6.402