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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-193.398784
Energy at 298.15K-193.403923
HF Energy-192.729932
Nuclear repulsion energy147.018939
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 CCD/6-31G*
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 3503 3315 51.47      
2 A 3281 3105 13.36      
3 A 3269 3094 0.12      
4 A 3201 3029 6.57      
5 A 3190 3019 5.18      
6 A 3184 3014 13.50      
7 A 2255 2134 4.14      
8 A 1565 1481 0.58      
9 A 1517 1436 2.01      
10 A 1434 1357 3.68      
11 A 1261 1194 1.27      
12 A 1238 1171 0.63      
13 A 1172 1109 1.03      
14 A 1163 1100 1.71      
15 A 1121 1061 4.97      
16 A 1119 1059 5.22      
17 A 1002 948 19.06      
18 A 961 909 4.35      
19 A 861 815 7.83      
20 A 835 791 1.08      
21 A 781 739 2.61      
22 A 603 571 50.05      
23 A 556 526 37.79      
24 A 506 479 2.19      
25 A 480 455 15.07      
26 A 201 191 0.65      
27 A 200 190 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 20227.3 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 19145.1 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 CCD/6-31G*
ABC
0.52785 0.11085 0.10531

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.624 0.155 0.000
C2 -0.564 0.984 0.000
H3 1.566 0.702 0.000
C4 0.624 -1.161 0.750
C5 0.624 -1.161 -0.750
C6 -1.570 1.656 0.000
H7 -2.481 2.214 0.000
H8 1.536 -1.437 1.273
H9 -0.295 -1.438 1.259
H10 1.536 -1.437 -1.273
H11 -0.295 -1.438 -1.259

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.44891.08891.51451.51452.65853.72602.23302.22872.23302.2287
C21.44892.14842.56402.56401.20972.27783.44842.74283.44842.7428
H31.08892.14842.21792.21793.27744.32002.48933.10252.48933.1025
C41.51452.56402.21791.49933.64864.64721.08711.08652.23592.2263
C51.51452.56402.21791.49933.64864.64722.23592.22631.08711.0865
C62.65851.20973.27743.64863.64861.06854.56453.57574.56453.5757
H73.72602.27784.32004.64724.64721.06855.57574.43905.57574.4390
H82.23303.44842.48931.08712.23594.56455.57571.83082.54623.1247
H92.22872.74283.10251.08652.22633.57574.43901.83083.12472.5183
H102.23303.44842.48932.23591.08714.56455.57572.54623.12471.8308
H112.22872.74283.10252.22631.08653.57574.43903.12472.51831.8308

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 178.888 C1 C4 C5 60.331
C1 C4 H8 117.313 C1 C4 H9 116.976
C1 C5 C4 60.331 C1 C5 H10 117.313
C1 C5 H11 116.976 C2 C1 H3 114.946
C2 C1 C4 119.803 C2 C1 C5 119.803
C2 C6 H7 177.695 H3 C1 C4 115.887
H3 C1 C5 115.887 C4 C1 C5 59.338
C4 C5 H10 118.785 C4 C5 H11 117.966
C5 C4 H8 118.785 C5 C4 H9 117.966
H8 C4 H9 114.765 H10 C5 H11 114.765
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability