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 C5H8 (1,3-Pentadiene, (Z)-)

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-194.005683
Energy at 298.15K-194.013415
HF Energy-194.005683
Nuclear repulsion energy156.206997
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/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' 3367 3059 26.13      
2 A' 3325 3020 13.49      
3 A' 3305 3003 33.65      
4 A' 3282 2981 17.32      
5 A' 3279 2979 5.15      
6 A' 3257 2959 12.40      
7 A' 3160 2871 42.79      
8 A' 1882 1710 11.29      
9 A' 1800 1635 4.27      
10 A' 1610 1462 6.03      
11 A' 1587 1441 13.43      
12 A' 1541 1400 2.34      
13 A' 1502 1365 2.43      
14 A' 1428 1297 1.78      
15 A' 1385 1259 2.14      
16 A' 1274 1157 0.73      
17 A' 1143 1039 0.14      
18 A' 1020 927 8.78      
19 A' 940 854 1.96      
20 A' 653 594 5.10      
21 A' 414 377 4.90      
22 A' 236 214 0.38      
23 A" 3201 2908 35.80      
24 A" 1601 1454 6.81      
25 A" 1167 1060 1.00      
26 A" 1137 1033 15.64      
27 A" 1102 1001 0.01      
28 A" 1056 960 60.18      
29 A" 878 797 8.94      
30 A" 698 634 33.06      
31 A" 396 360 0.45      
32 A" 134 122 0.07      
33 A" 118 107 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 26437.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 24018.8 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 HF/6-311G**
ABC
0.53645 0.08833 0.07691

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.384 0.136 0.000
C2 1.111 -0.224 0.000
C3 0.000 0.736 0.000
C4 -1.297 0.460 0.000
C5 -1.962 -0.888 0.000
H6 2.679 1.172 0.000
H7 3.174 -0.594 0.000
H8 0.871 -1.273 0.000
H9 0.292 1.774 0.000
H10 -1.976 1.298 0.000
H11 -1.259 -1.710 0.000
H12 -2.600 -0.991 0.874
H13 -2.600 -0.991 -0.874

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32262.45813.69474.46481.07731.07552.06742.65664.51184.08385.18425.1842
C21.32261.46812.50293.14402.09952.09571.07612.15903.44172.79753.88943.8894
C32.45811.46811.32562.54652.71463.44112.18921.07842.05422.75073.24153.2415
C43.69472.50291.32561.50274.03924.59302.77482.06181.07902.17002.13752.1375
C54.46483.14402.54651.50275.07785.14452.85893.48782.18591.08191.08731.0873
H61.07732.09952.71464.03925.07781.83363.04112.46184.65684.88025.77215.7721
H71.07552.09573.44114.59305.14451.83362.40133.72955.48624.57145.85365.8536
H82.06741.07612.18922.77482.85893.04112.40133.10113.83582.17423.59053.5905
H92.65662.15901.07842.06183.48782.46183.72953.10112.31733.81354.09584.0958
H104.51183.44172.05421.07902.18594.65685.48623.83582.31733.09242.52892.5289
H114.08382.79752.75072.17001.08194.88024.57142.17423.81353.09241.75501.7550
H125.18423.88943.24152.13751.08735.77215.85363.59054.09582.52891.75501.7485
H135.18423.88943.24152.13751.08735.77215.85363.59054.09582.52891.75501.7485

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.397 C1 C2 H8 118.693
C2 C1 H6 121.707 C2 C1 H7 121.493
C2 C3 C4 127.171 C2 C3 H9 115.093
C3 C2 H8 117.910 C3 C4 C5 128.298
C3 C4 H10 116.992 C4 C3 H9 117.737
C4 C5 H11 113.188 C4 C5 H12 110.198
C4 C5 H13 110.198 C5 C4 H10 114.710
H6 C1 H7 116.800 H11 C5 H12 108.001
H11 C5 H13 108.001 H12 C5 H13 107.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 C -0.146      
3 C -0.110      
4 C -0.149      
5 C -0.207      
6 H 0.100      
7 H 0.107      
8 H 0.098      
9 H 0.092      
10 H 0.099      
11 H 0.091      
12 H 0.102      
13 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.445 -0.213 0.000 0.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.308 0.168 0.000
y 0.168 -29.877 0.000
z 0.000 0.000 -35.482
Traceless
 xyz
x 3.372 0.168 0.000
y 0.168 2.518 0.000
z 0.000 0.000 -5.890
Polar
3z2-r2-11.780
x2-y20.569
xy0.168
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.482 1.117 0.000
y 1.117 7.160 0.000
z 0.000 0.000 4.698


<r2> (average value of r2) Å2
<r2> 155.755
(<r2>)1/2 12.480