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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-192.859654
Energy at 298.15K-192.864858
Nuclear repulsion energy147.018482
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 LSDA/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 3438 3368 80.60      
2 A 3214 3149 6.64      
3 A 3115 3052 3.70      
4 A 3105 3042 3.24      
5 A 2208 2163 17.45      
6 A 1474 1444 1.55      
7 A 1377 1349 1.75      
8 A 1231 1206 0.75      
9 A 1133 1110 0.97      
10 A 1056 1034 14.19      
11 A 991 971 27.69      
12 A 816 799 1.83      
13 A 766 750 2.32      
14 A 651 638 58.11      
15 A 515 504 9.05      
16 A 206 202 1.16      
17 A 3199 3134 0.20      
18 A 3109 3045 9.08      
19 A 1447 1418 10.21      
20 A 1182 1158 0.92      
21 A 1103 1080 0.04      
22 A 1070 1049 15.89      
23 A 904 885 0.15      
24 A 831 814 12.41      
25 A 597 585 68.77      
26 A 532 521 4.84      
27 A 212 208 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 19739.7 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 19339.0 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 LSDA/6-31G
ABC
0.52917 0.11110 0.10550

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.611 0.152 0.000
C2 -0.549 0.978 0.000
H3 1.565 0.693 0.000
C4 0.611 -1.172 0.748
C5 0.611 -1.172 -0.748
C6 -1.546 1.681 0.000
H7 -2.425 2.298 0.000
H8 1.526 -1.449 1.279
H9 -0.312 -1.445 1.266
H10 1.526 -1.449 -1.279
H11 -0.312 -1.445 -1.266

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.42391.09681.52091.52092.64363.71752.24412.23752.24412.2375
C21.42392.13352.55482.55481.21982.29373.43952.74413.43952.7441
H31.09682.13352.22432.22433.26434.30072.49493.11412.49493.1141
C41.52092.55482.22431.49623.65384.67081.09321.09302.24082.2323
C51.52092.55482.22431.49623.65384.67082.24082.23231.09321.0930
C62.64361.21983.26433.65383.65381.07394.56803.59124.56803.5912
H73.71752.29374.30074.67084.67081.07395.59314.48095.59314.4809
H82.24413.43952.49491.09322.24084.56805.59311.83782.55723.1389
H92.23752.74413.11411.09302.23233.59124.48091.83783.13892.5320
H102.24413.43952.49492.24081.09324.56805.59312.55723.13891.8378
H112.23752.74413.11412.23231.09303.59124.48093.13892.53201.8378

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.747 C1 C4 C5 60.536
C1 C4 H8 117.351 C1 C4 H9 116.787
C1 C5 C4 60.536 C1 C5 H10 117.351
C1 C5 H11 116.787 C2 C1 H3 115.031
C2 C1 C4 120.321 C2 C1 C5 120.321
C2 C6 H7 179.908 H3 C1 C4 115.412
H3 C1 C5 115.412 C4 C1 C5 58.929
C4 C5 H10 119.029 C4 C5 H11 118.283
C5 C4 H8 119.029 C5 C4 H9 118.283
H8 C4 H9 114.412 H10 C5 H11 114.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 C 0.204      
3 H 0.206      
4 C -0.323      
5 C -0.323      
6 C -0.470      
7 H 0.250      
8 H 0.180      
9 H 0.190      
10 H 0.180      
11 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.571 -0.700 0.000 0.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.834 -1.886 0.000
y -1.886 -29.718 0.000
z 0.000 0.000 -30.883
Traceless
 xyz
x 4.467 -1.886 0.000
y -1.886 -1.359 0.000
z 0.000 0.000 -3.107
Polar
3z2-r2-6.214
x2-y23.884
xy-1.886
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.004 -2.728 0.000
y -2.728 7.505 0.000
z 0.000 0.000 5.068


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000