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All results from a given calculation for HCCOH (ethynol)

using model chemistry: SVWN/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 SVWN/TZVP
 hartrees
Energy at 0K-151.778845
Energy at 298.15K-151.779497
HF Energy-151.778845
Nuclear repulsion energy58.376471
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 SVWN/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' 3673 3630 121.51      
2 A' 3420 3381 121.24      
3 A' 2267 2241 161.28      
4 A' 1159 1146 28.10      
5 A' 1102 1090 166.08      
6 A' 585 579 62.99      
7 A' 364 360 12.14      
8 A" 503 497 66.44      
9 A" 407 402 17.00      

Unscaled Zero Point Vibrational Energy (zpe) 6740.4 cm-1
Scaled (by 0.9885) Zero Point Vibrational Energy (zpe) 6662.9 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 SVWN/TZVP
ABC
22.53993 0.32755 0.32286

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.115 0.000
C2 0.016 1.320 0.000
O3 -0.113 -1.174 0.000
H4 0.045 2.390 0.000
H5 0.761 -1.607 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20461.29382.27511.8826
C21.20462.49671.07063.0196
O31.29382.49673.56700.9756
H42.27511.07063.56704.0602
H51.88263.01960.97564.0602

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.242 C1 O3 H5 111.336
C2 C1 O3 175.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 C -0.381      
3 O -0.293      
4 H 0.202      
5 H 0.329      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.696 -0.938 0.000 1.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.266 -3.058 0.000
y -3.058 -12.362 0.000
z 0.000 0.000 -19.024
Traceless
 xyz
x -1.573 -3.058 0.000
y -3.058 5.783 0.000
z 0.000 0.000 -4.210
Polar
3z2-r2-8.420
x2-y2-4.904
xy-3.058
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.306 -0.128 0.000
y -0.128 6.094 0.000
z 0.000 0.000 2.179


<r2> (average value of r2) Å2
<r2> 40.656
(<r2>)1/2 6.376