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All results from a given calculation for C5H6 (Cyclopropylacetylene)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-191.539916
Energy at 298.15K-191.544748
Nuclear repulsion energy143.938554
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 BLYP/STO-3G
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 3584 3316 134.47      
2 A 3451 3193 0.18      
3 A 3317 3069 1.90      
4 A 3299 3052 4.01      
5 A 2303 2130 3.47      
6 A 1575 1457 0.15      
7 A 1418 1312 7.78      
8 A 1244 1151 0.84      
9 A 1164 1077 0.39      
10 A 1152 1065 2.42      
11 A 1000 925 5.18      
12 A 828 766 0.25      
13 A 784 726 1.23      
14 A 686 634 18.46      
15 A 493 456 1.74      
16 A 198 184 0.66      
17 A 3444 3187 0.07      
18 A 3294 3048 1.92      
19 A 1549 1433 0.46      
20 A 1246 1153 0.10      
21 A 1164 1077 0.88      
22 A 1144 1058 3.58      
23 A 960 888 0.66      
24 A 854 790 2.74      
25 A 647 599 20.81      
26 A 503 466 0.07      
27 A 200 185 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 20749.1 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 19197.1 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 BLYP/STO-3G
ABC
0.50745 0.10597 0.10054

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.624 0.155 0.000
C2 -0.576 1.015 0.000
H3 1.588 0.703 0.000
C4 0.624 -1.205 0.769
C5 0.624 -1.205 -0.769
C6 -1.567 1.723 0.000
H7 -2.449 2.357 0.000
H8 1.552 -1.485 1.296
H9 -0.308 -1.496 1.284
H10 1.552 -1.485 -1.296
H11 -0.308 -1.496 -1.284

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.47631.10871.56201.56202.69423.78052.28692.28932.28692.2893
C21.47632.18622.63782.63781.21792.30433.52962.83283.52962.8328
H31.10872.18622.27132.27133.31584.36282.54273.17402.54273.1740
C41.56202.63782.27131.53823.73664.76661.10371.10332.28142.2729
C51.56202.63782.27131.53823.73664.76662.28142.27291.10371.1033
C62.69421.21793.31583.73663.73661.08634.65823.68714.65823.6871
H73.78052.30434.36284.76664.76661.08635.69654.59125.69654.5912
H82.28693.52962.54271.10372.28144.65825.69651.86012.59183.1802
H92.28932.83283.17401.10332.27293.68714.59121.86013.18022.5672
H102.28693.52962.54272.28141.10374.65825.69652.59183.18021.8601
H112.28932.83283.17402.27291.10333.68714.59123.18022.56721.8601

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 179.894 C1 C4 C5 60.504
C1 C4 H8 117.117 C1 C4 H9 117.351
C1 C5 C4 60.504 C1 C5 H10 117.117
C1 C5 H11 117.351 C2 C1 H3 114.758
C2 C1 C4 120.471 C2 C1 C5 120.471
C2 C6 H7 179.808 H3 C1 C4 115.469
H3 C1 C5 115.469 C4 C1 C5 58.993
C4 C5 H10 118.511 C4 C5 H11 117.797
C5 C4 H8 118.511 C5 C4 H9 117.797
H8 C4 H9 114.880 H10 C5 H11 114.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 C -0.043      
3 H 0.096      
4 C -0.147      
5 C -0.147      
6 C -0.137      
7 H 0.109      
8 H 0.086      
9 H 0.090      
10 H 0.086      
11 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.400 -0.568 0.000 0.694
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.855 -1.561 0.000
y -1.561 -27.845 0.000
z 0.000 0.000 -28.907
Traceless
 xyz
x 3.522 -1.561 0.000
y -1.561 -0.964 0.000
z 0.000 0.000 -2.557
Polar
3z2-r2-5.115
x2-y22.990
xy-1.561
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.868 -2.018 0.000
y -2.018 4.561 0.000
z 0.000 0.000 2.630


<r2> (average value of r2) Å2
<r2> 124.485
(<r2>)1/2 11.157