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All results from a given calculation for C5H6 (3-Penten-1-yne, (E)-)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-190.393402
Energy at 298.15K-190.398038
Nuclear repulsion energy138.516003
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 HF/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 3949 3224 173.67      
2 A 3757 3067 0.53      
3 A 3714 3032 2.93      
4 A 3698 3019 43.08      
5 A 3560 2907 1.07      
6 A 2673 2183 20.07      
7 A 2057 1680 4.00      
8 A 1821 1487 4.06      
9 A 1724 1408 9.85      
10 A 1539 1257 2.90      
11 A 1522 1243 4.54      
12 A 1314 1073 1.80      
13 A 1176 960 3.09      
14 A 1056 862 2.48      
15 A 945 771 14.33      
16 A 629 513 1.16      
17 A 441 360 0.80      
18 A 195 159 0.49      
19 A 3726 3043 0.21      
20 A 1814 1481 2.82      
21 A 1276 1042 0.01      
22 A 1201 981 15.08      
23 A 962 786 0.46      
24 A 925 755 14.94      
25 A 533 435 0.08      
26 A 196 160 0.85      
27 A 176 144 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 23289.9 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 19016.2 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 HF/STO-3G
ABC
1.29760 0.07492 0.07177

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.346 -0.402 0.000
H2 -2.767 -0.886 0.878
H3 -2.767 -0.886 -0.878
H4 -2.649 0.640 0.000
C5 -0.832 -0.528 0.000
H6 -0.443 -1.541 0.000
C7 0.000 0.494 0.000
H8 -0.378 1.511 0.000
C9 1.449 0.355 0.000
C10 2.617 0.249 0.000
H11 3.676 0.151 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 C10 H11
C11.08811.08811.08521.51902.21772.51092.74433.86945.00476.0468
H21.08811.75651.76522.15522.56923.21483.49704.48215.57186.5849
H31.08811.75651.76522.15522.56923.21483.49704.48215.57186.5849
H41.08521.76521.76522.16043.10242.65322.43264.10815.28036.3439
C51.51902.15522.15522.16041.08521.31812.08922.44593.53494.5587
H62.21772.56922.56923.10241.08522.08323.05312.67883.54494.4531
C72.51093.21483.21482.65321.31812.08321.08481.45572.62813.6919
H82.74433.49703.49702.43262.08923.05311.08482.16193.24964.2758
C93.86944.48214.48214.10812.44592.67881.45572.16191.17242.2362
C105.00475.57185.57185.28033.53493.54492.62813.24961.17241.0638
H116.04686.58496.58496.34394.55874.45313.69194.27582.23621.0638

picture of 3-Penten-1-yne, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 115.766 C1 C5 C7 124.363
H2 C1 H3 107.633 H2 C1 H4 108.627
H2 C1 C5 110.424 H3 C1 H4 108.627
H3 C1 C5 110.424 H4 C1 C5 111.013
C5 C7 H8 120.483 C5 C7 C9 123.645
H6 C5 C7 119.870 C7 C9 C10 179.707
H8 C7 C9 115.872 C9 C10 H11 179.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.185      
2 H 0.071      
3 H 0.071      
4 H 0.068      
5 C -0.029      
6 H 0.069      
7 C -0.071      
8 H 0.074      
9 C -0.041      
10 C -0.128      
11 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.720 -0.263 0.000 0.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.721 -0.155 0.000
y -0.155 -27.762 0.000
z 0.000 0.000 -29.458
Traceless
 xyz
x 3.889 -0.155 0.000
y -0.155 -0.673 0.000
z 0.000 0.000 -3.216
Polar
3z2-r2-6.433
x2-y23.042
xy-0.155
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.632 1.042 0.000
y 1.042 3.339 0.000
z 0.000 0.000 1.388


<r2> (average value of r2) Å2
<r2> 157.526
(<r2>)1/2 12.551