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

using model chemistry: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-265.818955
Energy at 298.15K-265.820651
HF Energy-265.818955
Nuclear repulsion energy144.772111
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 B1B95/6-31+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' 3809 3644 107.77      
2 A' 3499 3347 54.39      
3 A' 2257 2159 76.23      
4 A' 1839 1759 408.06      
5 A' 1378 1318 160.83      
6 A' 1197 1145 338.75      
7 A' 841 805 31.60      
8 A' 678 649 49.42      
9 A' 602 576 6.54      
10 A' 529 506 29.38      
11 A' 191 183 6.37      
12 A" 785 751 61.98      
13 A" 728 696 34.08      
14 A" 614 587 96.23      
15 A" 261 249 8.36      

Unscaled Zero Point Vibrational Energy (zpe) 9603.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9186.8 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 B1B95/6-31+G**
ABC
0.40631 0.13836 0.10321

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.488 0.000
C2 -0.219 -0.939 0.000
C3 -0.460 -2.120 0.000
O4 1.306 0.793 0.000
O5 -0.883 1.311 0.000
H6 -0.674 -3.165 0.000
H7 1.367 1.760 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44392.64871.34091.20693.71451.8674
C21.44391.20562.30812.34602.27173.1309
C32.64871.20563.40713.45751.06604.2892
O41.34092.30813.40712.24884.42560.9686
O51.20692.34603.45752.24884.48092.2943
H63.71452.27171.06604.42564.48095.3310
H71.86743.13094.28920.96862.29435.3310

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 177.224 C1 O4 H7 106.807
C2 C1 O4 111.901 C2 C1 O5 124.262
C2 C3 H6 179.949 O4 C1 O5 123.837
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.340      
2 C 0.286      
3 C -0.424      
4 O -0.418      
5 O -0.409      
6 H 0.245      
7 H 0.380      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.251 -1.200 0.000 1.733
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.726 6.690 0.000
y 6.690 -19.256 0.000
z 0.000 0.000 -28.317
Traceless
 xyz
x -6.939 6.690 0.000
y 6.690 10.265 0.000
z 0.000 0.000 -3.326
Polar
3z2-r2-6.652
x2-y2-11.469
xy6.690
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.056 0.537 0.000
y 0.537 8.856 0.000
z 0.000 0.000 3.231


<r2> (average value of r2) Å2
<r2> 105.655
(<r2>)1/2 10.279