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

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-265.857178
Energy at 298.15K-265.858824
HF Energy-265.857178
Nuclear repulsion energy142.006204
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 B3LYP/SDD
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' 3644 3503 63.99      
2 A' 3488 3353 50.77      
3 A' 2212 2127 92.45      
4 A' 1674 1609 326.36      
5 A' 1331 1279 83.50      
6 A' 1099 1056 405.54      
7 A' 809 778 12.47      
8 A' 715 688 56.28      
9 A' 597 574 5.51      
10 A' 505 485 33.45      
11 A' 192 185 6.58      
12 A" 761 732 58.92      
13 A" 739 710 49.51      
14 A" 596 573 146.95      
15 A" 265 255 11.97      

Unscaled Zero Point Vibrational Energy (zpe) 9313.6 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 8953.1 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 B3LYP/SDD
ABC
0.38450 0.13488 0.09985

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.480 0.000
C2 -0.252 -0.943 0.000
C3 -0.527 -2.133 0.000
O4 1.358 0.758 0.000
O5 -0.868 1.369 0.000
H6 -0.759 -3.175 0.000
H7 1.510 1.731 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.44522.66551.38621.24183.73351.9613
C21.44521.22122.34192.39222.28933.2027
C32.66551.22123.45093.51791.06824.3683
O41.38622.34193.45092.30804.46680.9855
O51.24182.39223.51792.30804.54532.4054
H63.73352.28931.06824.46684.54535.4062
H71.96133.20274.36830.98552.40545.4062

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 177.011 C1 O4 H7 110.436
C2 C1 O4 111.589 C2 C1 O5 125.645
C2 C3 H6 179.521 O4 C1 O5 122.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.194      
2 C 0.132      
3 C -0.335      
4 O -0.430      
5 O -0.242      
6 H 0.285      
7 H 0.395      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.102 -1.340 0.000 1.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.917 7.805 0.000
y 7.805 -19.378 0.000
z 0.000 0.000 -28.300
Traceless
 xyz
x -7.078 7.805 0.000
y 7.805 10.230 0.000
z 0.000 0.000 -3.153
Polar
3z2-r2-6.306
x2-y2-11.539
xy7.805
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.343 0.782 0.000
y 0.782 8.486 0.000
z 0.000 0.000 2.192


<r2> (average value of r2) Å2
<r2> 108.713
(<r2>)1/2 10.427