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All results from a given calculation for HCCOH (ethynol)

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-152.567334
Energy at 298.15K-152.567963
Nuclear repulsion energy57.824335
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 BLYP/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' 3615 3604 73.64      
2 A' 3418 3408 87.21      
3 A' 2207 2200 129.57      
4 A' 1226 1222 79.60      
5 A' 1039 1036 89.26      
6 A' 598 596 48.76      
7 A' 365 364 9.35      
8 A" 502 500 54.44      
9 A" 375 374 11.76      

Unscaled Zero Point Vibrational Energy (zpe) 6672.3 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 6652.2 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 BLYP/cc-pVTZ
ABC
22.06552 0.32080 0.31620

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.124 0.000
C2 -0.005 1.332 0.000
O3 -0.096 -1.193 0.000
H4 0.002 2.396 0.000
H5 0.795 -1.592 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20731.32062.27171.8916
C21.20732.52601.06453.0313
O31.32062.52603.59010.9757
H42.27171.06453.59014.0663
H51.89163.03130.97574.0663

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.356 C1 O3 H5 110.020
C2 C1 O3 175.597
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.095      
2 C -0.270      
3 O -0.190      
4 H 0.134      
5 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.484 -0.848 0.000 1.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.060 -2.813 0.000
y -2.813 -12.660 0.000
z 0.000 0.000 -18.840
Traceless
 xyz
x -1.310 -2.813 0.000
y -2.813 5.290 0.000
z 0.000 0.000 -3.980
Polar
3z2-r2-7.960
x2-y2-4.400
xy-2.813
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.643 -0.218 0.000
y -0.218 6.041 0.000
z 0.000 0.000 2.468


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