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All results from a given calculation for C3H2O2 (Propiolic acid)

using model chemistry: PBE1PBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-265.643623
Energy at 298.15K-265.645254
HF Energy-265.643623
Nuclear repulsion energy144.514578
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 PBE1PBE/aug-cc-pVDZ
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' 3790 3644 101.11      
2 A' 3494 3359 56.33      
3 A' 2250 2163 71.81      
4 A' 1820 1750 374.70      
5 A' 1376 1324 113.27      
6 A' 1201 1155 354.90      
7 A' 838 806 26.42      
8 A' 652 627 41.03      
9 A' 594 571 5.21      
10 A' 529 509 27.56      
11 A' 183 176 6.06      
12 A" 779 749 57.22      
13 A" 700 673 22.63      
14 A" 622 598 80.89      
15 A" 228 219 8.18      

Unscaled Zero Point Vibrational Energy (zpe) 9526.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9160.7 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 PBE1PBE/aug-cc-pVDZ
ABC
0.40481 0.13784 0.10283

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.490 0.000
C2 -0.213 -0.941 0.000
C3 -0.461 -2.125 0.000
O4 1.308 0.800 0.000
O5 -0.888 1.308 0.000
H6 -0.672 -3.176 0.000
H7 1.358 1.768 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44672.65561.34391.20693.72681.8648
C21.44671.21002.31172.34752.28153.1316
C32.65561.21003.41833.45941.07144.2972
O41.34392.31173.41832.25344.44120.9692
O51.20692.34753.45942.25344.48872.2926
H63.72682.28151.07144.44124.48875.3442
H71.86483.13164.29720.96922.29265.3442

picture of Propiolic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 176.676 C1 O4 H7 106.323
C2 C1 O4 111.815 C2 C1 O5 124.165
C2 C3 H6 179.537 O4 C1 O5 124.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.795      
2 C -0.376      
3 C 0.942      
4 O -0.509      
5 O -0.569      
6 H -0.546      
7 H 0.263      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.269 -1.185 0.000 1.736
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.650 6.512 0.000
y 6.512 -19.488 0.000
z 0.000 0.000 -28.389
Traceless
 xyz
x -6.712 6.512 0.000
y 6.512 10.032 0.000
z 0.000 0.000 -3.320
Polar
3z2-r2-6.640
x2-y2-11.162
xy6.512
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.783 0.557 -0.000
y 0.557 9.251 -0.001
z -0.000 -0.001 4.104


<r2> (average value of r2) Å2
<r2> 106.041
(<r2>)1/2 10.298