return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/6-31+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 B97D3/6-31+G**
 hartrees
Energy at 0K-265.754965
Energy at 298.15K-265.756477
HF Energy-265.754965
Nuclear repulsion energy143.387970
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 B97D3/6-31+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' 3668 3605 75.89      
2 A' 3432 3373 48.51      
3 A' 2170 2133 59.90      
4 A' 1730 1700 354.48      
5 A' 1318 1295 83.29      
6 A' 1132 1112 394.35      
7 A' 808 794 17.40      
8 A' 609 599 49.22      
9 A' 573 564 3.57      
10 A' 511 502 26.70      
11 A' 180 176 5.72      
12 A" 748 735 57.25      
13 A" 662 651 21.65      
14 A" 592 582 97.35      
15 A" 245 241 7.28      

Unscaled Zero Point Vibrational Energy (zpe) 9188.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 9030.7 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 B97D3/6-31+G**
ABC
0.39479 0.13665 0.10151

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.487 0.000
C2 -0.214 -0.943 0.000
C3 -0.475 -2.133 0.000
O4 1.327 0.799 0.000
O5 -0.895 1.318 0.000
H6 -0.702 -3.179 0.000
H7 1.377 1.775 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44622.66231.36351.22123.73241.8853
C21.44621.21762.32622.36142.28823.1493
C32.66231.21763.44133.47591.07064.3238
O41.36352.32623.44132.28204.46570.9766
O51.22122.36143.47592.28204.50082.3176
H63.73242.28821.07064.46574.50085.3720
H71.88533.14934.32380.97662.31765.3720

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 175.699 C1 O4 H7 106.352
C2 C1 O4 111.879 C2 C1 O5 124.227
C2 C3 H6 172.554 O4 C1 O5 123.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.337      
2 C 0.427      
3 C -0.585      
4 O -0.390      
5 O -0.386      
6 H 0.227      
7 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.168 -1.198 0.000 1.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.855 6.637 0.000
y 6.637 -19.546 0.000
z 0.000 0.000 -28.464
Traceless
 xyz
x -6.850 6.637 0.000
y 6.637 10.114 0.000
z 0.000 0.000 -3.264
Polar
3z2-r2-6.528
x2-y2-11.309
xy6.637
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.466 0.694 0.000
y 0.694 9.575 0.000
z 0.000 0.000 3.412


<r2> (average value of r2) Å2
<r2> 107.243
(<r2>)1/2 10.356