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: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-192.746096
Energy at 298.15K-192.751477
HF Energy-192.746096
Nuclear repulsion energy147.314138
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 HSEh1PBE/3-21G
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' 3514 3385 69.79      
2 A' 3299 3178 4.87      
3 A' 3210 3093 2.53      
4 A' 3197 3079 2.96      
5 A' 2263 2180 13.86      
6 A' 1526 1470 1.21      
7 A' 1395 1344 2.29      
8 A' 1199 1155 1.00      
9 A' 1168 1125 2.39      
10 A' 1090 1050 18.83      
11 A' 966 930 20.03      
12 A' 826 796 1.92      
13 A' 778 749 4.77      
14 A' 756 728 49.14      
15 A' 500 482 9.39      
16 A' 211 204 2.12      
17 A" 3283 3163 0.08      
18 A" 3192 3075 8.64      
19 A" 1507 1452 7.69      
20 A" 1219 1174 0.73      
21 A" 1141 1099 0.06      
22 A" 1115 1074 16.13      
23 A" 916 882 0.27      
24 A" 833 803 14.48      
25 A" 725 698 58.53      
26 A" 547 527 4.73      
27 A" 222 214 2.64      

Unscaled Zero Point Vibrational Energy (zpe) 20299.8 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 19554.8 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 HSEh1PBE/3-21G
ABC
0.52306 0.11233 0.10662

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.616 0.156 0.000
C2 -0.574 0.955 0.000
H3 1.546 0.718 0.000
C4 0.616 -1.165 0.754
C5 0.616 -1.165 -0.754
C6 -1.539 1.681 0.000
H7 -2.422 2.271 0.000
H8 1.530 -1.438 1.271
H9 -0.299 -1.440 1.264
H10 1.530 -1.438 -1.271
H11 -0.299 -1.440 -1.264

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 C6 H7 H8 H9 H10 H11
C11.43351.08631.52091.52092.64093.70272.23342.23182.23342.2318
C21.43352.13272.54572.54571.20832.26953.42982.72193.42982.7219
H31.08632.13272.23132.23133.23214.26152.50233.10762.50233.1076
C41.52092.54572.23131.50753.64954.64901.08431.08342.23782.2327
C51.52092.54572.23131.50753.64954.64902.23782.23271.08431.0834
C62.64091.20833.23213.64953.64951.06204.55653.58864.55653.5886
H73.70272.26954.26154.64904.64901.06205.56694.45865.56694.4586
H82.23343.42982.50231.08432.23784.55655.56691.82872.54213.1259
H92.23182.72193.10761.08342.23273.58864.45861.82873.12592.5282
H102.23343.42982.50232.23781.08434.55655.56692.54213.12591.8287
H112.23182.72193.10762.23271.08343.58864.45863.12592.52821.8287

picture of Cyclopropylacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C6 176.948 C1 C4 C5 60.292
C1 C4 H8 117.031 C1 C4 H9 116.962
C1 C5 C4 60.292 C1 C5 H10 117.031
C1 C5 H11 116.962 C2 C1 H3 114.938
C2 C1 C4 118.974 C2 C1 C5 118.974
C2 C6 H7 176.802 H3 C1 C4 116.710
H3 C1 C5 116.710 C4 C1 C5 59.416
C4 C5 H10 118.497 C4 C5 H11 118.105
C5 C4 H8 118.497 C5 C4 H9 118.105
H8 C4 H9 115.045 H10 C5 H11 115.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.480      
2 C 0.166      
3 H 0.260      
4 C -0.405      
5 C -0.405      
6 C -0.380      
7 H 0.275      
8 H 0.238      
9 H 0.247      
10 H 0.238      
11 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.554 -0.708 0.000 0.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.727 -2.038 0.000
y -2.038 -30.068 0.000
z 0.000 0.000 -31.344
Traceless
 xyz
x 4.979 -2.038 0.000
y -2.038 -1.533 0.000
z 0.000 0.000 -3.447
Polar
3z2-r2-6.894
x2-y24.341
xy-2.038
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.407 -2.550 0.000
y -2.550 6.863 0.000
z 0.000 0.000 4.664


<r2> (average value of r2) Å2
<r2> 119.868
(<r2>)1/2 10.948