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

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-265.865611
Energy at 298.15K-265.867310
HF Energy-265.865611
Nuclear repulsion energy144.910951
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 B3PW91/6-311G**
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' 3781 3642 94.20      
2 A' 3478 3349 52.34      
3 A' 2231 2149 67.74      
4 A' 1824 1757 355.91      
5 A' 1372 1321 106.32      
6 A' 1187 1143 371.80      
7 A' 834 803 30.77      
8 A' 701 675 39.17      
9 A' 604 581 6.50      
10 A' 533 513 27.47      
11 A' 194 187 5.82      
12 A" 784 755 70.74      
13 A" 745 717 16.40      
14 A" 595 573 86.69      
15 A" 244 235 9.17      

Unscaled Zero Point Vibrational Energy (zpe) 9553.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9200.9 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 B3PW91/6-311G**
ABC
0.40577 0.13881 0.10343

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.489 0.000
C2 -0.216 -0.940 0.000
C3 -0.465 -2.115 0.000
O4 1.308 0.793 0.000
O5 -0.883 1.306 0.000
H6 -0.680 -3.158 0.000
H7 1.362 1.760 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44552.64581.34331.20263.71031.8628
C21.44551.20152.30822.34272.26633.1272
C32.64581.20153.40683.44641.06484.2845
O41.34332.30823.40682.25064.42370.9680
O51.20262.34273.44642.25064.46852.2907
H63.71032.26631.06484.42374.46855.3252
H71.86283.12724.28450.96802.29075.3252

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 176.597 C1 O4 H7 106.261
C2 C1 O4 111.665 C2 C1 O5 124.171
C2 C3 H6 179.654 O4 C1 O5 124.164
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.244      
2 C 0.078      
3 C -0.095      
4 O -0.305      
5 O -0.316      
6 H 0.128      
7 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.215 -1.008 0.000 1.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.126 6.424 0.000
y 6.424 -19.037 0.000
z 0.000 0.000 -27.840
Traceless
 xyz
x -6.687 6.424 0.000
y 6.424 9.946 0.000
z 0.000 0.000 -3.259
Polar
3z2-r2-6.517
x2-y2-11.089
xy6.424
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.319 0.718 0.000
y 0.718 8.280 0.000
z 0.000 0.000 2.549


<r2> (average value of r2) Å2
<r2> 105.192
(<r2>)1/2 10.256