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

using model chemistry: PBE1PBE/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/cc-pVDZ
 hartrees
Energy at 0K-265.623259
Energy at 298.15K-265.624982
HF Energy-265.623259
Nuclear repulsion energy144.591113
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/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' 3762 3617 101.21      
2 A' 3499 3365 59.44      
3 A' 2256 2169 69.32      
4 A' 1854 1783 343.72      
5 A' 1394 1340 133.53      
6 A' 1210 1164 324.18      
7 A' 843 811 32.24      
8 A' 693 666 36.05      
9 A' 598 575 6.60      
10 A' 532 512 27.55      
11 A' 192 185 5.24      
12 A" 792 761 60.36      
13 A" 745 717 18.11      
14 A" 614 590 79.77      
15 A" 256 246 8.39      

Unscaled Zero Point Vibrational Energy (zpe) 9620.5 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9250.1 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/cc-pVDZ
ABC
0.40614 0.13780 0.10289

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.492 0.000
C2 -0.209 -0.942 0.000
C3 -0.456 -2.127 0.000
O4 1.304 0.802 0.000
O5 -0.889 1.306 0.000
H6 -0.667 -3.179 0.000
H7 1.338 1.774 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44912.65841.34031.20543.73171.8530
C21.44911.21052.30862.34832.28403.1255
C32.65841.21053.41683.46001.07354.2935
O41.34032.30863.41682.25054.44250.9726
O51.20542.34833.46002.25054.49082.2762
H63.73172.28401.07354.44254.49085.3437
H71.85303.12554.29350.97262.27625.3437

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 176.537 C1 O4 H7 105.376
C2 C1 O4 111.653 C2 C1 O5 124.165
C2 C3 H6 179.586 O4 C1 O5 124.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.025      
2 C 0.446      
3 C -0.287      
4 O -0.154      
5 O -0.222      
6 H 0.030      
7 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.227 -0.938 0.000 1.544
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.785 6.137 0.000
y 6.137 -18.821 0.000
z 0.000 0.000 -27.693
Traceless
 xyz
x -6.528 6.137 0.000
y 6.137 9.918 0.000
z 0.000 0.000 -3.390
Polar
3z2-r2-6.780
x2-y2-10.965
xy6.137
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.120 0.746 0.000
y 0.746 8.173 0.000
z 0.000 0.000 2.379


<r2> (average value of r2) Å2
<r2> 105.519
(<r2>)1/2 10.272