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

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-193.800294
Energy at 298.15K-193.804590
Nuclear repulsion energy140.739465
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/6-31G(2df,p)
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' 3436 3401 72.03      
2 A' 3101 3069 22.75      
3 A' 3080 3049 0.54      
4 A' 3069 3037 2.19      
5 A' 2962 2932 18.16      
6 A' 2148 2126 1.23      
7 A' 1636 1619 6.52      
8 A' 1429 1414 7.38      
9 A' 1379 1364 6.10      
10 A' 1339 1326 6.31      
11 A' 1223 1210 0.02      
12 A' 1086 1075 0.12      
13 A' 955 945 19.61      
14 A' 895 886 4.28      
15 A' 646 639 4.02      
16 A' 587 581 39.46      
17 A' 360 356 4.71      
18 A' 152 151 0.10      
19 A" 3016 2985 12.13      
20 A" 1429 1414 5.40      
21 A" 1016 1006 0.31      
22 A" 946 936 0.41      
23 A" 731 723 14.86      
24 A" 531 526 56.35      
25 A" 478 473 0.44      
26 A" 270 267 0.40      
27 A" 152 150 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 19026.1 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 18830.1 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/6-31G(2df,p)
ABC
0.40009 0.11016 0.08779

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.176 -0.921 0.000
C2 2.255 -0.378 0.000
C3 1.202 0.236 0.000
H4 0.115 2.078 0.000
C5 0.000 0.987 0.000
H6 -2.091 1.157 0.000
C7 -1.245 0.459 0.000
H8 -0.663 -1.616 0.000
H9 -2.181 -1.266 0.884
H10 -2.181 -1.266 -0.884
C11 -1.574 -0.999 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06992.28854.28573.70565.66244.63233.90135.44065.44064.7506
C21.06991.21863.25712.63574.60873.59893.16914.60924.60923.8784
C32.28851.21862.13871.41743.41922.45752.62763.80533.80533.0377
H44.28573.25712.13871.09622.38982.11383.77424.15104.15103.5093
C53.70562.63571.41741.09622.09781.35282.68613.25813.25812.5341
H65.66244.60873.41922.38982.09781.09623.11912.58092.58092.2173
C74.63233.59892.45752.11381.35281.09622.15542.15252.15251.4948
H83.90133.16912.62763.77422.68613.11912.15541.79121.79121.1001
H95.44064.60923.80534.15103.25812.58092.15251.79121.76711.1050
H105.44064.60923.80534.15103.25812.58092.15251.79121.76711.1050
C114.75063.87843.03773.50932.53412.21731.49481.10011.10501.1050

picture of 3-Penten-1-yne, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 179.706 C2 C3 C5 178.216
C3 C5 H4 116.018 C3 C5 C7 125.011
H4 C5 C7 118.971 C5 C7 H6 117.492
C5 C7 C11 125.652 H6 C7 C11 116.856
C7 C11 H8 111.420 C7 C11 H9 110.891
C7 C11 H10 110.891 H8 C11 H9 108.638
H8 C11 H10 108.638 H9 C11 H10 106.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.192      
2 C -0.454      
3 C 0.319      
4 H 0.119      
5 C -0.221      
6 H 0.106      
7 C -0.013      
8 H 0.150      
9 H 0.144      
10 H 0.144      
11 C -0.486      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.729 -0.189 0.000 0.754
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.372 -1.881 0.000
y -1.881 -28.104 0.000
z 0.000 0.000 -31.940
Traceless
 xyz
x 4.650 -1.881 0.000
y -1.881 0.552 0.000
z 0.000 0.000 -5.203
Polar
3z2-r2-10.405
x2-y22.732
xy-1.881
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.731 -0.675 0.000
y -0.675 7.276 0.000
z 0.000 0.000 4.357


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000