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

using model chemistry: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-194.017363
Energy at 298.15K-194.021674
Nuclear repulsion energy140.271877
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/6-311G**
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' 3407 3393 66.25      
2 A' 3074 3062 32.78      
3 A' 3052 3040 1.59      
4 A' 3035 3023 5.06      
5 A' 2939 2928 24.52      
6 A' 2122 2113 2.41      
7 A' 1613 1607 5.37      
8 A' 1446 1441 10.58      
9 A' 1391 1385 5.74      
10 A' 1364 1358 6.08      
11 A' 1235 1230 0.05      
12 A' 1089 1085 0.22      
13 A' 950 946 19.91      
14 A' 872 869 3.64      
15 A' 648 645 7.86      
16 A' 623 621 37.78      
17 A' 359 358 5.64      
18 A' 152 152 0.28      
19 A" 2972 2961 22.29      
20 A" 1448 1442 7.09      
21 A" 1028 1024 0.72      
22 A" 946 942 0.36      
23 A" 723 720 21.26      
24 A" 569 567 57.02      
25 A" 480 478 4.79      
26 A" 264 263 1.28      
27 A" 130 129 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 18964.6 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 18890.6 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/6-311G**
ABC
0.40269 0.10813 0.08662

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 3.203 -0.887 0.000
C2 2.275 -0.359 0.000
C3 1.215 0.237 0.000
H4 0.111 2.070 0.000
C5 0.000 0.982 0.000
H6 -2.087 1.155 0.000
C7 -1.247 0.455 0.000
H8 -0.699 -1.642 0.000
H9 -2.204 -1.266 0.883
H10 -2.204 -1.266 -0.883
C11 -1.595 -1.009 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 C5 H6 C7 H8 H9 H10 C11
H11.06742.28354.27803.70775.67014.64783.97375.49145.49144.7990
C21.06741.21613.25312.64044.61723.61503.23854.65444.65443.9240
C32.28351.21612.13991.42483.42702.47162.68123.83723.83723.0732
H44.27803.25312.13991.09372.38042.11023.79874.15494.15493.5194
C53.70772.64041.42481.09372.09441.35432.71483.26933.26932.5507
H65.67014.61723.42702.38042.09441.09353.12242.57942.57942.2191
C74.64783.61502.47162.11021.35431.09352.16692.15732.15731.5041
H83.97373.23852.68123.79872.71483.12242.16691.78511.78511.0971
H95.49144.65443.83724.15493.26932.57942.15731.78511.76531.1029
H105.49144.65443.83724.15493.26932.57942.15731.78511.76531.1029
C114.79903.92403.07323.51942.55072.21911.50411.09711.10291.1029

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 179.679 C2 C3 C5 177.792
C3 C5 H4 115.728 C3 C5 C7 125.568
H4 C5 C7 118.704 C5 C7 H6 117.260
C5 C7 C11 126.262 H6 C7 C11 116.478
C7 C11 H8 111.872 C7 C11 H9 110.750
C7 C11 H10 110.750 H8 C11 H9 108.473
H8 C11 H10 108.473 H9 C11 H10 106.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.109      
2 C -0.131      
3 C -0.014      
4 H 0.110      
5 C -0.141      
6 H 0.097      
7 C -0.117      
8 H 0.120      
9 H 0.115      
10 H 0.115      
11 C -0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.764 -0.168 0.000 0.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.248 -1.864 0.000
y -1.864 -29.037 0.000
z 0.000 0.000 -33.055
Traceless
 xyz
x 4.798 -1.864 0.000
y -1.864 0.614 0.000
z 0.000 0.000 -5.412
Polar
3z2-r2-10.824
x2-y22.790
xy-1.864
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.291 -0.666 0.000
y -0.666 7.479 0.000
z 0.000 0.000 4.527


<r2> (average value of r2) Å2
<r2> 135.820
(<r2>)1/2 11.654