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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-193.916791
Energy at 298.15K-193.922127
Nuclear repulsion energy146.694278
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 B3PW91/6-31G
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 3520 3371 66.04      
2 A 3283 3144 15.20      
3 A 3187 3052 8.31      
4 A 3180 3045 5.07      
5 A 2237 2143 16.30      
6 A 1532 1467 0.82      
7 A 1415 1355 2.60      
8 A 1243 1190 0.55      
9 A 1163 1114 1.49      
10 A 1103 1056 10.63      
11 A 989 947 23.98      
12 A 834 798 1.35      
13 A 774 741 3.91      
14 A 701 671 59.85      
15 A 520 498 9.04      
16 A 212 203 1.36      
17 A 3266 3128 0.09      
18 A 3176 3042 15.46      
19 A 1510 1446 5.29      
20 A 1228 1176 0.84      
21 A 1154 1105 0.02      
22 A 1119 1072 13.33      
23 A 926 887 0.20      
24 A 846 810 14.01      
25 A 655 627 71.24      
26 A 538 516 2.64      
27 A 217 208 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 20262.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 19405.4 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 B3PW91/6-31G
ABC
0.52876 0.11009 0.10442

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.628 0.000
C2 -1.091 -0.307 0.000
H3 -0.301 1.673 0.000
C4 1.292 0.315 0.752
C5 1.292 0.315 -0.752
C6 -2.013 -1.097 0.000
H7 -2.821 -1.791 0.000
H8 1.773 1.135 1.276
H9 1.347 -0.638 1.266
H10 1.773 1.135 -1.276
H11 1.347 -0.638 -1.266

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43671.08721.52791.52792.65173.71632.24242.24062.24242.2406
C21.43672.13132.57542.57541.21502.27963.45072.76683.45072.7668
H31.08722.13132.22462.22463.25694.28352.49393.10802.49393.1080
C41.52792.57542.22461.50493.67274.68211.08481.08412.23992.2327
C51.52792.57542.22461.50493.67274.68212.23992.23271.08481.0841
C62.65171.21503.25693.67273.67271.06464.57683.62004.57683.6200
H73.71632.27964.28354.68214.68211.06465.59404.50605.59404.5060
H82.24243.45072.49391.08482.23994.57685.59401.82342.55183.1281
H92.24062.76683.10801.08412.23273.62004.50601.82343.12812.5315
H102.24243.45072.49392.23991.08484.57685.59402.55183.12811.8234
H112.24062.76683.10802.23271.08413.62004.50603.12812.53151.8234

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.980 C1 C4 C5 60.497
C1 C4 H8 117.233 C1 C4 H9 117.133
C1 C5 C4 60.497 C1 C5 H10 117.233
C1 C5 H11 117.133 C2 C1 H3 114.522
C2 C1 C4 120.590 C2 C1 C5 120.590
C2 C6 H7 179.992 H3 C1 C4 115.540
H3 C1 C5 115.540 C4 C1 C5 59.007
C4 C5 H10 118.851 C4 C5 H11 118.260
C5 C4 H8 118.851 C5 C4 H9 118.260
H8 C4 H9 114.428 H10 C5 H11 114.428
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.263      
2 C 0.163      
3 H 0.204      
4 C -0.316      
5 C -0.316      
6 C -0.473      
7 H 0.265      
8 H 0.179      
9 H 0.189      
10 H 0.179      
11 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.813 0.371 0.000 0.894
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.507 2.533 0.000
y 2.533 -27.009 0.000
z 0.000 0.000 -30.860
Traceless
 xyz
x 0.428 2.533 0.000
y 2.533 2.674 0.000
z 0.000 0.000 -3.102
Polar
3z2-r2-6.205
x2-y2-1.498
xy2.533
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 121.451
(<r2>)1/2 11.020