return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-194.108711
Energy at 298.15K-194.113953
Nuclear repulsion energy147.638443
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 B3LYP/6-311+G(3df,2p)
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 3464 3349 79.18      
2 A 3225 3118 10.24      
3 A 3139 3036 5.62      
4 A 3133 3030 5.62      
5 A 2210 2137 31.04      
6 A 1504 1454 1.05      
7 A 1382 1336 3.47      
8 A 1214 1174 0.65      
9 A 1139 1101 0.41      
10 A 1061 1026 6.40      
11 A 961 930 21.12      
12 A 815 788 1.01      
13 A 755 730 3.10      
14 A 688 665 43.08      
15 A 507 490 10.73      
16 A 205 198 1.67      
17 A 3210 3104 0.13      
18 A 3130 3027 16.11      
19 A 1474 1425 2.91      
20 A 1203 1164 0.84      
21 A 1117 1080 0.66      
22 A 1085 1049 5.54      
23 A 894 864 1.50      
24 A 821 794 9.09      
25 A 629 608 50.71      
26 A 522 505 4.13      
27 A 210 203 1.93      

Unscaled Zero Point Vibrational Energy (zpe) 19846.9 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 19191.9 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 B3LYP/6-311+G(3df,2p)
ABC
0.53323 0.11177 0.10607

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.612 0.152 0.000
C2 -0.560 0.978 0.000
H3 1.547 0.698 0.000
C4 0.612 -1.169 0.748
C5 0.612 -1.169 -0.748
C6 -1.541 1.671 0.000
H7 -2.407 2.284 0.000
H8 1.521 -1.441 1.266
H9 -0.300 -1.442 1.258
H10 1.521 -1.441 -1.266
H11 -0.300 -1.442 -1.258

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43371.08291.51751.51752.63493.69622.22812.22582.22812.2258
C21.43372.12562.55732.55731.20122.26263.43222.73953.43222.7395
H31.08292.12562.21742.21743.23794.26072.48513.09382.48513.0938
C41.51752.55732.21741.49633.64114.64721.08081.08002.22652.2209
C51.51752.55732.21741.49633.64114.64722.22652.22091.08081.0800
C62.63491.20123.23793.64113.64111.06134.54513.57944.54513.5794
H73.69622.26264.26074.64724.64721.06135.55924.46165.55924.4616
H82.22813.43222.48511.08082.22654.54515.55921.82062.53243.1126
H92.22582.73953.09381.08002.22093.57944.46161.82063.11262.5169
H102.22813.43222.48512.22651.08084.54515.55922.53243.11261.8206
H112.22582.73953.09382.22091.08003.57944.46163.11262.51691.8206

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.940 C1 C4 C5 60.463
C1 C4 H8 117.083 C1 C4 H9 116.930
C1 C5 C4 60.463 C1 C5 H10 117.083
C1 C5 H11 116.930 C2 C1 H3 114.547
C2 C1 C4 120.087 C2 C1 C5 120.087
C2 C6 H7 179.942 H3 C1 C4 116.012
H3 C1 C5 116.012 C4 C1 C5 59.074
C4 C5 H10 118.641 C4 C5 H11 118.197
C5 C4 H8 118.641 C5 C4 H9 118.197
H8 C4 H9 114.818 H10 C5 H11 114.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.133      
2 C 0.080      
3 H 0.151      
4 C -0.360      
5 C -0.360      
6 C -0.239      
7 H 0.226      
8 H 0.156      
9 H 0.162      
10 H 0.156      
11 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.662 -0.767 0.000 1.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.127 -2.391 0.000
y -2.391 9.575 0.000
z 0.000 0.000 7.275


<r2> (average value of r2) Å2
<r2> 120.633
(<r2>)1/2 10.983