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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-193.972108
Energy at 298.15K-193.977311
Nuclear repulsion energy147.267878
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 3500 3354 72.12      
2 A 3263 3127 10.56      
3 A 3169 3037 7.47      
4 A 3164 3033 5.50      
5 A 2241 2148 16.12      
6 A 1515 1452 0.44      
7 A 1391 1334 3.81      
8 A 1231 1180 1.23      
9 A 1143 1095 0.57      
10 A 1066 1022 5.24      
11 A 986 945 22.30      
12 A 818 784 1.36      
13 A 766 735 2.06      
14 A 650 623 46.98      
15 A 510 488 5.57      
16 A 205 197 0.82      
17 A 3250 3115 0.09      
18 A 3161 3030 16.05      
19 A 1473 1411 2.35      
20 A 1203 1153 0.55      
21 A 1115 1069 1.73      
22 A 1076 1031 6.81      
23 A 916 878 2.35      
24 A 831 796 7.76      
25 A 588 563 55.85      
26 A 527 505 0.00      
27 A 213 204 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 19985.3 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 19153.9 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
0.53285 0.11106 0.10544

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 0.631 0.000
C2 -1.083 -0.313 0.000
H3 -0.308 1.674 0.000
C4 1.283 0.320 0.748
C5 1.283 0.320 -0.748
C6 -1.998 -1.105 0.000
H7 -2.803 -1.803 0.000
H8 1.763 1.143 1.269
H9 1.334 -0.635 1.260
H10 1.763 1.143 -1.269
H11 1.334 -0.635 -1.260

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43671.08801.51741.51742.64653.71242.23112.22942.23112.2294
C21.43672.13352.56072.56071.20982.27573.43882.74443.43882.7444
H31.08802.13352.21962.21963.25264.28002.48603.10142.48603.1014
C41.51742.56072.21961.49543.65414.66501.08561.08482.23002.2235
C51.51742.56072.21961.49543.65414.66502.23002.22351.08561.0848
C62.64651.20983.25263.65413.65411.06584.56083.59294.56083.5929
H73.71242.27574.28004.66504.66501.06585.57964.47965.57964.4796
H82.23113.43882.48601.08562.23004.56085.57961.82882.53733.1204
H92.22942.74443.10141.08482.22353.59294.47961.82883.12042.5192
H102.23113.43882.48602.23001.08564.56085.57962.53733.12041.8288
H112.22942.74443.10142.22351.08483.59294.47963.12042.51921.8288

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.759 C1 C4 C5 60.479
C1 C4 H8 117.028 C1 C4 H9 116.932
C1 C5 C4 60.479 C1 C5 H10 117.028
C1 C5 H11 116.932 C2 C1 H3 114.648
C2 C1 C4 120.159 C2 C1 C5 120.159
C2 C6 H7 179.926 H3 C1 C4 115.863
H3 C1 C5 115.863 C4 C1 C5 59.043
C4 C5 H10 118.680 C4 C5 H11 118.158
C5 C4 H8 118.680 C5 C4 H9 118.158
H8 C4 H9 114.843 H10 C5 H11 114.843
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 -0.272      
2 C 0.313      
3 H 0.163      
4 C -0.262      
5 C -0.262      
6 C -0.477      
7 H 0.191      
8 H 0.146      
9 H 0.156      
10 H 0.146      
11 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.817 0.377 0.000 0.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.324 2.554 0.000
y 2.554 -26.761 0.000
z 0.000 0.000 -30.657
Traceless
 xyz
x 0.386 2.554 0.000
y 2.554 2.729 0.000
z 0.000 0.000 -3.115
Polar
3z2-r2-6.230
x2-y2-1.562
xy2.554
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> 120.417
(<r2>)1/2 10.973