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All results from a given calculation for HCCOH (ethynol)

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-152.125857
Energy at 298.15K-152.126447
HF Energy-151.675562
Nuclear repulsion energy57.751480
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 CCD/6-31+G**
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' 3896 3671 114.95      
2 A' 3546 3341 80.11      
3 A' 2303 2170 115.68      
4 A' 1277 1204 95.29      
5 A' 1080 1018 83.38      
6 A' 598 563 60.50      
7 A' 343 323 9.79      
8 A" 526 496 57.33      
9 A" 346 326 18.81      

Unscaled Zero Point Vibrational Energy (zpe) 6957.3 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 6555.8 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 CCD/6-31+G**
ABC
22.30015 0.31923 0.31472

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.126 0.000
C2 0.079 1.332 0.000
O3 -0.167 -1.190 0.000
H4 0.166 2.391 0.000
H5 0.695 -1.622 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.20831.32722.27041.8816
C21.20832.53441.06213.0177
O31.32722.53443.59640.9645
H42.27041.06213.59644.0474
H51.88163.01770.96454.0474

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 179.047 C1 O3 H5 109.361
C2 C1 O3 176.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability