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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-193.789092
Energy at 298.15K-193.794104
Nuclear repulsion energy146.275906
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 PBEPBE/6-31+G**
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 3418 3379 79.66      
2 A 3185 3149 9.06      
3 A 3090 3055 7.51      
4 A 3086 3051 4.18      
5 A 2154 2129 34.01      
6 A 1457 1440 0.88      
7 A 1339 1324 3.55      
8 A 1192 1179 0.60      
9 A 1105 1093 0.42      
10 A 1018 1006 8.16      
11 A 957 946 23.74      
12 A 795 786 1.27      
13 A 742 733 2.59      
14 A 604 597 61.76      
15 A 491 485 5.87      
16 A 197 195 1.50      
17 A 3171 3135 0.13      
18 A 3085 3049 16.87      
19 A 1420 1404 3.02      
20 A 1161 1147 0.96      
21 A 1066 1054 2.39      
22 A 1031 1019 7.25      
23 A 868 858 1.85      
24 A 803 793 8.40      
25 A 541 534 68.79      
26 A 501 496 4.02      
27 A 205 202 1.50      

Unscaled Zero Point Vibrational Energy (zpe) 19339.6 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 19119.1 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 PBEPBE/6-31+G**
ABC
0.52592 0.10964 0.10408

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.615 0.150 0.000
C2 -0.558 0.983 0.000
H3 1.565 0.696 0.000
C4 0.615 -1.182 0.753
C5 0.615 -1.182 -0.753
C6 -1.551 1.697 0.000
H7 -2.424 2.322 0.000
H8 1.534 -1.453 1.278
H9 -0.309 -1.455 1.268
H10 1.534 -1.453 -1.278
H11 -0.309 -1.455 -1.268

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43831.09611.52931.52932.66173.73512.24672.24462.24672.2446
C21.43832.14192.57402.57401.22342.29693.45592.75953.45592.7595
H31.09612.14192.23502.23503.27274.30722.50043.12252.50043.1225
C41.52932.57402.23501.50553.68024.69841.09361.09292.24602.2389
C51.52932.57402.23501.50553.68024.69842.24602.23891.09361.0929
C62.66171.22343.27273.68023.68021.07344.59093.61784.59093.6178
H73.73512.29694.30724.69844.69841.07345.61704.51105.61704.5110
H82.24673.45592.50041.09362.24604.59095.61701.84402.55653.1439
H92.24462.75953.12251.09292.23893.61784.51101.84403.14392.5363
H102.24673.45592.50042.24601.09364.59095.61702.55653.14391.8440
H112.24462.75953.12252.23891.09293.61784.51103.14392.53631.8440

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.675 C1 C4 C5 60.515
C1 C4 H8 116.891 C1 C4 H9 116.760
C1 C5 C4 60.515 C1 C5 H10 116.891
C1 C5 H11 116.760 C2 C1 H3 114.701
C2 C1 C4 120.282 C2 C1 C5 120.282
C2 C6 H7 179.894 H3 C1 C4 115.716
H3 C1 C5 115.716 C4 C1 C5 58.971
C4 C5 H10 118.719 C4 C5 H11 118.139
C5 C4 H8 118.719 C5 C4 H9 118.139
H8 C4 H9 114.991 H10 C5 H11 114.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 C 0.230      
3 H 0.188      
4 C -0.422      
5 C -0.422      
6 C -0.557      
7 H 0.207      
8 H 0.175      
9 H 0.184      
10 H 0.175      
11 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.686 -0.802 0.000 1.055
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.789 -1.954 0.000
y -1.954 -30.816 0.000
z 0.000 0.000 -32.056
Traceless
 xyz
x 4.646 -1.954 0.000
y -1.954 -1.393 0.000
z 0.000 0.000 -3.253
Polar
3z2-r2-6.506
x2-y24.026
xy-1.954
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.260 -2.819 0.000
y -2.819 9.526 0.000
z 0.000 0.000 6.881


<r2> (average value of r2) Å2
<r2> 122.574
(<r2>)1/2 11.071