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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-195.014754
Energy at 298.15K-195.022121
Nuclear repulsion energy154.270154
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 PBEPBE/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 3171 3125 17.32      
2 A 3090 3046 1.14      
3 A 3081 3037 9.98      
4 A 2955 2913 22.18      
5 A 1687 1663 0.76      
6 A 1450 1429 6.33      
7 A 1420 1400 0.00      
8 A 1289 1271 0.03      
9 A 1236 1218 0.10      
10 A 1061 1045 0.82      
11 A 1000 986 10.12      
12 A 897 884 14.63      
13 A 892 879 26.15      
14 A 663 653 8.34      
15 A 362 357 0.41      
16 A 291 287 0.12      
17 A 86 85 0.01      
18 A 3171 3125 21.65      
19 A 3090 3046 10.64      
20 A 3080 3036 30.54      
21 A 3000 2957 15.35      
22 A 1672 1648 20.42      
23 A 1422 1402 2.61      
24 A 1299 1281 0.11      
25 A 1270 1251 5.69      
26 A 1146 1129 3.59      
27 A 1001 987 14.18      
28 A 953 940 2.61      
29 A 894 881 33.77      
30 A 874 862 10.97      
31 A 595 586 10.94      
32 A 442 436 2.98      
33 A 102 101 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24319.0 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 23971.2 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 PBEPBE/6-31G*
ABC
0.65847 0.07743 0.07684

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 1.253 -0.178
C3 0.000 -1.253 -0.178
C4 0.970 2.181 -0.178
C5 -0.970 -2.181 -0.178
H6 -0.891 -0.010 1.326
H7 0.891 0.010 1.326
H8 -0.866 1.374 -0.844
H9 0.866 -1.374 -0.844
H10 0.920 3.068 -0.818
H11 -0.920 -3.068 -0.818
H12 1.851 2.090 0.468
H13 -1.851 -2.090 0.468

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51171.51172.53212.53211.10781.10782.21822.21823.53063.53062.79902.7990
C21.51172.50691.34183.56862.15672.14461.09902.84512.13294.46432.13153.8759
C31.51172.50693.56861.34182.14462.15672.84511.09904.46432.13293.87592.1315
C42.53211.34183.56864.77343.24422.64192.11263.61781.09485.61521.09675.1590
C52.53213.56861.34184.77342.64193.24423.61782.11265.61521.09485.15901.0967
H61.10782.15672.14463.24422.64191.78162.57393.10674.16553.73443.55882.4461
H71.10782.14462.15672.64193.24421.78163.10672.57393.73444.16552.44613.5588
H82.21821.09902.84512.11263.61782.57393.10673.24702.46184.44183.10093.8327
H92.21822.84511.09903.61782.11263.10672.57393.24704.44182.46183.83273.1009
H103.53062.13294.46431.09485.61524.16553.73442.46184.44186.40571.86465.9949
H113.53064.46432.13295.61521.09483.73444.16554.44182.46186.40575.99491.8646
H122.79902.13153.87591.09675.15903.55882.44613.10093.83271.86465.99495.5838
H132.79903.87592.13155.15901.09672.44613.55883.83273.10095.99491.86465.5838

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 124.985 C1 C2 H8 115.442
C1 C3 C5 124.985 C1 C3 H9 115.442
C2 C1 C3 112.029 C2 C1 H6 109.880
C2 C1 H7 108.938 C2 C4 H10 121.843
C2 C4 H12 121.553 C3 C1 H6 108.938
C3 C1 H7 109.880 C3 C5 H11 121.843
C3 C5 H13 121.553 C4 C2 H8 119.563
C5 C3 H9 119.563 H6 C1 H7 107.049
H10 C4 H12 116.603 H11 C5 H13 116.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 C -0.046      
3 C -0.046      
4 C -0.358      
5 C -0.358      
6 H 0.163      
7 H 0.163      
8 H 0.142      
9 H 0.142      
10 H 0.150      
11 H 0.150      
12 H 0.144      
13 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.075 0.075
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.339 0.831 0.000
y 0.831 -31.443 0.000
z 0.000 0.000 -31.915
Traceless
 xyz
x 1.340 0.831 0.000
y 0.831 -0.316 0.000
z 0.000 0.000 -1.024
Polar
3z2-r2-2.047
x2-y21.104
xy0.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.006 3.150 0.000
y 3.150 10.365 0.000
z 0.000 0.000 5.554


<r2> (average value of r2) Å2
<r2> 159.833
(<r2>)1/2 12.642