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

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-193.979424
Energy at 298.15K-193.983831
HF Energy-193.979424
Nuclear repulsion energy 
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 wB97X-D/6-31G*
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' 3506 3325 66.06      
2 A' 3209 3043 18.95      
3 A' 3195 3030 8.61      
4 A' 3153 2990 15.24      
5 A' 3064 2906 27.37      
6 A' 2260 2143 3.14      
7 A' 1756 1665 5.07      
8 A' 1528 1449 12.26      
9 A' 1451 1376 1.56      
10 A' 1353 1283 1.79      
11 A' 1335 1266 1.59      
12 A' 1147 1088 0.46      
13 A' 1062 1007 10.70      
14 A' 929 881 6.21      
15 A' 672 637 47.57      
16 A' 552 524 2.84      
17 A' 399 379 1.72      
18 A' 174 165 1.08      
19 A" 3128 2967 18.36      
20 A" 1513 1435 8.49      
21 A" 1085 1029 0.01      
22 A" 997 945 38.85      
23 A" 820 778 0.08      
24 A" 599 568 54.66      
25 A" 473 449 0.16      
26 A" 198 187 0.04      
27 A" 171 163 2.60      

Unscaled Zero Point Vibrational Energy (zpe) 19861.8 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 18838.9 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 wB97X-D/6-31G*
ABC
1.28728 0.07491 0.07173

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.327 -0.441 0.000
H2 -2.757 -0.933 0.881
H3 -2.757 -0.933 -0.881
H4 -2.649 0.605 0.000
C5 -0.835 -0.557 0.000
H6 -0.414 -1.561 0.000
C7 0.000 0.488 0.000
H8 -0.403 1.500 0.000
C9 1.421 0.364 0.000
C10 2.624 0.299 0.000
H11 3.686 0.404 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 C10 H11
C11.09671.09671.09441.49632.21652.50582.73293.83375.00646.0721
H21.09671.76151.77562.14732.58053.22463.49804.46285.59056.6390
H31.09671.76151.77562.14732.58053.22463.49804.46285.59056.6390
H41.09441.77561.77562.15403.11192.65152.41744.07705.28206.3379
C51.49632.14732.14732.15401.08841.33812.10192.43723.56394.6222
H62.21652.58052.58053.11191.08842.09053.06082.65983.56274.5468
C72.50583.22463.22462.65151.33812.09051.08911.42642.63103.6867
H82.73293.49803.49802.41742.10193.06081.08912.14893.25684.2333
C93.83374.46284.46284.07702.43722.65981.42642.14891.20492.2652
C105.00645.59055.59055.28203.56393.56272.63103.25681.20491.0668
H116.07216.63906.63906.33794.62224.54683.68674.23332.26521.0668

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 117.202 C1 C5 C7 124.180
H2 C1 H3 106.853 H2 C1 H4 108.267
H2 C1 C5 110.867 H3 C1 H4 108.267
H3 C1 C5 110.867 H4 C1 C5 111.549
C5 C7 H8 119.640 C5 C7 C9 123.644
H6 C5 C7 118.618 C7 C9 C10 178.103
H8 C7 C9 116.717 C9 C10 H11 171.265
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.546      
2 H 0.184      
3 H 0.184      
4 H 0.179      
5 C -0.098      
6 H 0.177      
7 C -0.248      
8 H 0.184      
9 C 0.284      
10 C -0.541      
11 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.934 -0.325 0.000 0.989
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.975 -0.068 0.000
y -0.068 -28.907 0.000
z 0.000 0.000 -32.104
Traceless
 xyz
x 6.530 -0.068 0.000
y -0.068 -0.867 0.000
z 0.000 0.000 -5.663
Polar
3z2-r2-11.326
x2-y24.932
xy-0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.023 1.506 0.000
y 1.506 6.077 0.000
z 0.000 0.000 3.709


<r2> (average value of r2) Å2
<r2> 158.314
(<r2>)1/2 12.582