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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-262.264373
Energy at 298.15K-262.265425
HF Energy-262.264373
Nuclear repulsion energy138.183700
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 BLYP/STO-3G
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' 3567 3301 116.37      
2 A' 3465 3206 18.51      
3 A' 2241 2073 77.44      
4 A' 1717 1589 51.50      
5 A' 1390 1286 14.23      
6 A' 1119 1036 179.42      
7 A' 757 701 18.97      
8 A' 680 629 18.18      
9 A' 547 506 0.30      
10 A' 434 402 16.99      
11 A' 164 152 2.64      
12 A" 697 645 21.72      
13 A" 638 591 41.55      
14 A" 614 568 18.90      
15 A" 231 214 4.41      

Unscaled Zero Point Vibrational Energy (zpe) 9130.5 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 8447.5 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 BLYP/STO-3G
ABC
0.35724 0.12934 0.09496

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.494 0.000
C2 -0.272 -0.975 0.000
C3 -0.595 -2.154 0.000
O4 1.435 0.719 0.000
O5 -0.858 1.436 0.000
H6 -0.876 -3.206 0.000
H7 1.463 1.768 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7
C11.49432.71431.45241.27413.80301.9398
C21.49431.22232.40492.48142.31173.2457
C32.71431.22233.51783.59971.08934.4291
O41.45242.40493.51782.40244.55531.0491
O51.27412.48143.59972.40244.64252.3448
H63.80302.31171.08934.55534.64255.4969
H71.93983.24574.42911.04912.34485.4969

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 175.155 C1 O4 H7 100.454
C2 C1 O4 109.391 C2 C1 O5 127.180
C2 C3 H6 179.619 O4 C1 O5 123.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.176      
2 C -0.050      
3 C -0.101      
4 O -0.169      
5 O -0.173      
6 H 0.124      
7 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.732 -0.145 0.000 0.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.321 4.733 0.000
y 4.733 -19.153 0.000
z 0.000 0.000 -25.021
Traceless
 xyz
x -4.234 4.733 0.000
y 4.733 6.518 0.000
z 0.000 0.000 -2.284
Polar
3z2-r2-4.568
x2-y2-7.168
xy4.733
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.739 1.037 0.000
y 1.037 6.232 0.000
z 0.000 0.000 0.702


<r2> (average value of r2) Å2
<r2> 111.564
(<r2>)1/2 10.562