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All results from a given calculation for C5H8 (1,2-Pentadiene)

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 C1 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-193.982692
Energy at 298.15K-193.990385
Nuclear repulsion energy157.117405
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 3352 3045 5.55      
2 A 3279 2979 11.94      
3 A 3273 2974 7.88      
4 A 3236 2940 54.20      
5 A 3229 2934 55.57      
6 A 3174 2884 25.16      
7 A 3169 2879 25.03      
8 A 3154 2865 53.17      
9 A 2197 1996 54.49      
10 A 1620 1472 3.73      
11 A 1612 1465 6.63      
12 A 1610 1463 1.19      
13 A 1599 1453 3.34      
14 A 1543 1402 3.83      
15 A 1491 1355 21.58      
16 A 1462 1329 0.41      
17 A 1397 1269 0.36      
18 A 1228 1116 1.04      
19 A 1204 1094 3.54      
20 A 1175 1067 4.18      
21 A 1114 1012 1.37      
22 A 1062 965 0.15      
23 A 997 906 58.52      
24 A 995 904 16.43      
25 A 895 813 1.82      
26 A 851 773 2.29      
27 A 686 623 6.71      
28 A 578 525 2.42      
29 A 394 358 3.72      
30 A 370 336 9.49      
31 A 276 251 0.00      
32 A 167 151 0.43      
33 A 109 99 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 26248.4 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 23846.7 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
0.34680 0.10603 0.08512

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.365 0.515 -0.000
C2 1.537 -1.000 0.000
C3 -0.068 1.000 0.000
C4 -1.128 0.257 -0.001
C5 -2.197 -0.476 0.000
H6 1.864 0.941 -0.868
H7 1.864 0.941 0.868
H8 1.080 -1.447 0.877
H9 2.591 -1.258 -0.000
H10 1.079 -1.447 -0.877
H11 -0.213 2.070 0.001
H12 -2.655 -0.790 0.922
H13 -2.657 -0.790 -0.921

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52471.51252.50643.69701.08831.08832.16792.15612.16802.21504.32604.3275
C21.52472.56432.94663.77032.15112.15111.08521.08561.08523.53354.29744.2990
C31.51252.56431.29512.59092.11882.11882.84173.48882.84181.07963.27883.2801
C42.50642.94661.29511.29583.18963.19032.92414.01642.92342.03142.06872.0689
C53.69703.77032.59091.29584.38764.38783.52834.85163.52823.22811.07651.0765
H61.08832.15112.11883.18964.38761.73653.05982.47362.51342.51855.15994.8413
H71.08832.15112.11883.19034.38781.73652.51342.47353.05982.51804.83985.1613
H82.16791.08522.84172.92413.52833.05982.51341.75761.75373.84823.79274.1988
H92.15611.08563.48884.01644.85162.47362.47351.75761.75764.35205.34755.3491
H102.16801.08522.84182.92343.52822.51343.05981.75371.75763.84864.19733.7944
H112.21503.53351.07962.03143.22812.51852.51803.84824.35203.84863.87253.8739
H124.32604.29743.27882.06871.07655.15994.83983.79275.34754.19733.87251.8432
H134.32754.29903.28012.06891.07654.84135.16134.19885.34913.79443.87391.8432

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.216 C1 C2 H9 110.246
C1 C2 H10 111.219 C1 C3 C4 126.257
C1 C3 H11 116.421 C2 C1 C3 115.195
C2 C1 H6 109.690 C2 C1 H7 109.689
C3 C1 H6 108.001 C3 C1 H7 107.995
C3 C4 C5 179.413 C4 C3 H11 117.321
C4 C5 H12 121.112 C4 C5 H13 121.129
H6 C1 H7 105.844 H8 C2 H9 108.118
H8 C2 H10 107.799 H9 C2 H10 108.118
H12 C5 H13 117.758
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 -0.158      
2 C -0.246      
3 C -0.167      
4 C -0.040      
5 C -0.247      
6 H 0.100      
7 H 0.100      
8 H 0.097      
9 H 0.090      
10 H 0.097      
11 H 0.122      
12 H 0.127      
13 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.438 0.079 0.001 0.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.599 2.017 -0.001
y 2.017 -31.822 0.001
z -0.001 0.001 -32.404
Traceless
 xyz
x 1.513 2.017 -0.001
y 2.017 -0.320 0.001
z -0.001 0.001 -1.193
Polar
3z2-r2-2.386
x2-y21.222
xy2.017
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.272 2.393 0.001
y 2.393 7.815 0.001
z 0.001 0.001 5.764


<r2> (average value of r2) Å2
<r2> 145.034
(<r2>)1/2 12.043