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All results from a given calculation for C5H8 (1,3-Pentadiene, (E)-)

using model chemistry: HF/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-32.047237
Energy at 298.15K-32.054919
Nuclear repulsion energy83.113480
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/CEP-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 3417 3068 41.65      
2 A 3359 3016 23.18      
3 A 3346 3005 24.60      
4 A 3336 2995 50.69      
5 A 3331 2992 7.48      
6 A 3294 2958 30.06      
7 A 3211 2884 72.08      
8 A 1899 1706 16.13      
9 A 1817 1631 10.76      
10 A 1620 1455 7.02      
11 A 1567 1407 0.52      
12 A 1546 1389 10.47      
13 A 1437 1291 1.96      
14 A 1428 1282 1.17      
15 A 1392 1250 4.60      
16 A 1291 1159 1.15      
17 A 1173 1053 0.24      
18 A 1046 939 7.56      
19 A 966 867 2.55      
20 A 501 450 0.04      
21 A 474 426 0.86      
22 A 207 186 2.04      
23 A 3264 2931 55.70      
24 A 1609 1445 7.25      
25 A 1175 1055 23.00      
26 A 1158 1040 50.33      
27 A 1114 1001 10.66      
28 A 1042 936 59.55      
29 A 945 849 6.19      
30 A 708 636 3.92      
31 A 273 245 3.65      
32 A 224 201 0.12      
33 A 145 130 1.00      

Unscaled Zero Point Vibrational Energy (zpe) 26656.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 23937.5 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/CEP-31G*
ABC
0.94133 0.07080 0.06666

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.382 0.994 0.000
C2 -1.461 0.008 0.000
C3 0.000 0.253 0.000
C4 0.922 -0.731 0.000
C5 2.421 -0.508 0.000
H6 -2.096 2.039 0.000
H7 -3.442 0.775 0.000
H8 -1.783 -1.026 0.000
H9 0.319 1.289 0.000
H10 0.584 -1.762 0.000
H11 2.663 0.555 0.000
H12 2.880 -0.966 0.880
H13 2.880 -0.966 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34862.49463.72695.03251.08311.08212.10692.71654.04915.06365.68345.6834
C21.34861.48172.49513.91672.12722.12351.08332.19272.70554.16004.53534.5353
C32.49461.48171.34812.53782.75393.48112.19431.08402.09802.67963.24853.2485
C43.72692.49511.34811.51604.09634.61592.72082.10821.08492.16452.15962.1596
C55.03253.91672.53781.51605.18586.00164.23612.76592.22421.09011.09311.0931
H61.08312.12722.75394.09635.18581.84583.08072.52854.65114.98475.87905.8790
H71.08212.12353.48114.61596.00161.84582.44843.79514.75886.10826.61566.6156
H82.10691.08332.19432.72084.23613.08072.44843.12662.47934.71854.74564.7456
H92.71652.19271.08402.10822.76592.52853.79513.12663.06272.45633.52413.5241
H104.04912.70552.09801.08492.22424.65114.75882.47933.06273.11272.58412.5841
H115.06364.16002.67962.16451.09014.98476.10824.71852.45633.11271.77071.7707
H125.68344.53533.24852.15961.09315.87906.61564.74563.52412.58411.77071.7604
H135.68344.53533.24852.15961.09315.87906.61564.74563.52412.58411.77071.7604

picture of 1,3-Pentadiene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.555 C1 C2 H8 119.674
C2 C1 H6 121.657 C2 C1 H7 121.376
C2 C3 C4 123.635 C2 C3 H9 116.578
C3 C2 H8 116.771 C3 C4 C5 124.666
C3 C4 H10 118.756 C4 C3 H9 119.787
C4 C5 H11 111.257 C4 C5 H12 110.689
C4 C5 H13 110.689 C5 C4 H10 116.578
H6 C1 H7 116.967 H11 C5 H12 108.401
H11 C5 H13 108.401 H12 C5 H13 107.273
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.659      
2 C 0.008      
3 C -0.222      
4 C -0.349      
5 C -0.331      
6 H 0.192      
7 H 0.193      
8 H 0.267      
9 H 0.289      
10 H 0.255      
11 H 0.134      
12 H 0.111      
13 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.540 -0.280 0.000 0.608
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.866 -0.083 0.000
y -0.083 -28.815 0.000
z 0.000 0.000 -35.630
Traceless
 xyz
x 2.356 -0.083 0.000
y -0.083 3.933 0.000
z 0.000 0.000 -6.289
Polar
3z2-r2-12.578
x2-y2-1.051
xy-0.083
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.685 -3.904 0.000
y -3.904 8.823 0.000
z 0.000 0.000 4.573


<r2> (average value of r2) Å2
<r2> 142.933
(<r2>)1/2 11.955