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All results from a given calculation for C5H8 (1,4-Pentadiene)

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-194.708832
Energy at 298.15K-194.716384
HF Energy-193.968848
Nuclear repulsion energy155.052108
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 CCD/6-31+G**
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 3311 3120 16.33      
2 A 3226 3040 3.05      
3 A 3214 3028 6.22      
4 A 3093 2915 22.00      
5 A 1753 1652 0.69      
6 A 1528 1440 5.25      
7 A 1494 1408 0.00      
8 A 1351 1273 0.23      
9 A 1291 1217 0.01      
10 A 1109 1045 4.02      
11 A 1028 968 19.20      
12 A 940 885 44.31      
13 A 936 882 1.74      
14 A 681 642 11.74      
15 A 378 356 0.55      
16 A 301 284 0.11      
17 A 89 84 0.04      
18 A 3311 3120 20.06      
19 A 3225 3039 8.20      
20 A 3214 3029 27.75      
21 A 3142 2961 15.00      
22 A 1745 1644 14.21      
23 A 1502 1415 2.66      
24 A 1364 1285 1.08      
25 A 1339 1261 5.19      
26 A 1204 1135 2.25      
27 A 1032 972 22.53      
28 A 998 940 2.84      
29 A 940 886 41.07      
30 A 918 865 5.78      
31 A 611 575 12.22      
32 A 457 431 2.34      
33 A 97 91 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25410.0 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 23943.9 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 CCD/6-31+G**
ABC
0.66719 0.07803 0.07744

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.663
C2 0.000 1.249 -0.182
C3 0.000 -1.249 -0.182
C4 0.969 2.172 -0.172
C5 -0.969 -2.172 -0.172
H6 -0.881 -0.008 1.313
H7 0.881 0.008 1.313
H8 -0.851 1.375 -0.845
H9 0.851 -1.375 -0.845
H10 0.924 3.049 -0.804
H11 -0.924 -3.049 -0.804
H12 1.834 2.078 0.473
H13 -1.834 -2.078 0.473

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50871.50872.52112.52111.09431.09432.21162.21163.50763.50762.77812.7781
C21.50872.49901.33813.55642.14312.13341.08632.83772.11624.44022.11663.8553
C31.50872.49903.55641.33812.13342.14312.83771.08634.44022.11623.85532.1166
C42.52111.33813.55644.75723.22192.62592.09823.61261.08175.58951.08355.1319
C52.52113.55641.33814.75722.62593.22193.61262.09825.58951.08175.13191.0835
H61.09432.14312.13343.22192.62591.76152.56343.08624.13343.70533.52532.4283
H71.09432.13342.14312.62593.22191.76153.08622.56343.70534.13342.42833.5253
H82.21161.08632.83772.09823.61262.56343.08623.23472.44024.42473.07313.8241
H92.21162.83771.08633.61262.09823.08622.56343.23474.42472.44023.82413.0731
H103.50762.11624.44021.08175.58954.13343.70532.44024.42476.37141.84495.9598
H113.50764.44022.11625.58951.08173.70534.13344.42472.44026.37145.95981.8449
H122.77812.11663.85531.08355.13193.52532.42833.07313.82411.84495.95985.5430
H132.77813.85532.11665.13191.08352.42833.52533.82413.07315.95981.84495.5430

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.530 C1 C2 H8 115.962
C1 C3 C5 124.530 C1 C3 H9 115.962
C2 C1 C3 111.821 C2 C1 H6 109.809
C2 C1 H7 109.048 C2 C4 H10 121.612
C2 C4 H12 121.510 C3 C1 H6 109.048
C3 C1 H7 109.809 C3 C5 H11 121.612
C3 C5 H13 121.510 C4 C2 H8 119.502
C5 C3 H9 119.502 H6 C1 H7 107.195
H10 C4 H12 116.878 H11 C5 H13 116.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCD/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.229      
2 C -0.073      
3 C -0.073      
4 C -0.383      
5 C -0.383      
6 H 0.140      
7 H 0.140      
8 H 0.153      
9 H 0.153      
10 H 0.143      
11 H 0.143      
12 H 0.134      
13 H 0.134      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


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