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

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-193.992057
Energy at 298.15K-193.999464
HF Energy-193.992057
Nuclear repulsion energy156.989363
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 HSEh1PBE/3-21G
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' 3158 3042 6.31      
2 A' 3154 3038 25.81      
3 A' 3152 3036 0.81      
4 A' 3076 2963 15.11      
5 A' 3054 2942 24.12      
6 A' 2102 2025 26.60      
7 A' 1564 1506 7.52      
8 A' 1540 1483 0.25      
9 A' 1521 1465 6.15      
10 A' 1461 1407 11.76      
11 A' 1417 1365 6.76      
12 A' 1356 1306 4.92      
13 A' 1183 1139 1.12      
14 A' 1112 1071 3.74      
15 A' 1024 986 1.93      
16 A' 918 884 78.46      
17 A' 858 826 2.25      
18 A' 648 624 1.69      
19 A' 369 356 4.33      
20 A' 154 148 0.40      
21 A" 3224 3106 3.17      
22 A" 3156 3040 22.11      
23 A" 3084 2971 11.41      
24 A" 1559 1502 10.21      
25 A" 1332 1283 0.03      
26 A" 1141 1099 2.76      
27 A" 1069 1030 0.69      
28 A" 927 893 18.24      
29 A" 821 791 7.55      
30 A" 536 516 6.75      
31 A" 331 319 8.12      
32 A" 257 248 0.11      
33 A" 100 97 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 25177.4 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 24253.4 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 HSEh1PBE/3-21G
ABC
0.33532 0.10940 0.08662

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.401 0.455 0.000
C2 -1.423 -1.077 0.000
C3 0.000 1.031 0.000
C4 1.093 0.317 0.000
C5 2.187 -0.393 0.000
H6 -1.936 0.836 0.882
H7 -1.936 0.836 -0.882
H8 -0.909 -1.466 -0.886
H9 -2.453 -1.450 0.000
H10 -0.909 -1.466 0.886
H11 0.079 2.119 0.000
H12 2.666 -0.703 -0.926
H13 2.666 -0.703 0.926

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53201.51542.49793.68671.09951.09952.17152.17502.17152.22754.32874.3287
C21.53202.54352.87633.67362.16832.16831.09521.09511.09523.53134.20854.2085
C31.51542.54351.30512.60942.13662.13662.80103.48842.80101.09043.31223.3122
C42.49792.87631.30511.30423.19723.19722.82333.96132.82332.06662.09112.0911
C53.68673.67362.60941.30424.39164.39163.39354.75803.39353.27831.08771.0877
H61.09952.16832.13663.19724.39161.76333.07862.50342.52092.54685.17834.8527
H71.09952.16832.13663.19724.39161.76332.52092.50343.07862.54684.85275.1783
H82.17151.09522.80102.82333.39353.07862.52091.77991.77103.82233.65504.0791
H92.17501.09513.48843.96134.75802.50342.50341.77991.77994.37535.25465.2546
H102.17151.09522.80102.82333.39352.52093.07861.77101.77993.82234.07913.6550
H112.22753.53131.09042.06663.27832.54682.54683.82234.37533.82233.93803.9380
H124.32874.20853.31222.09111.08775.17834.85273.65505.25464.07913.93801.8518
H134.32874.20853.31222.09111.08774.85275.17834.07915.25463.65503.93801.8518

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 110.388 C1 C2 H9 110.670
C1 C2 H10 110.388 C1 C3 C4 124.490
C1 C3 H11 116.542 C2 C1 C3 113.161
C2 C1 H6 109.879 C2 C1 H7 109.879
C3 C1 H6 108.543 C3 C1 H7 108.543
C3 C4 C5 179.857 C4 C3 H11 118.968
C4 C5 H12 121.650 C4 C5 H13 121.650
H6 C1 H7 106.612 H8 C2 H9 108.708
H8 C2 H10 107.906 H9 C2 H10 108.708
H12 C5 H13 116.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.477      
2 C -0.624      
3 C -0.324      
4 C 0.140      
5 C -0.534      
6 H 0.231      
7 H 0.231      
8 H 0.223      
9 H 0.211      
10 H 0.223      
11 H 0.236      
12 H 0.232      
13 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.377 0.008 0.000 0.377
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.559 -2.040 0.000
y -2.040 -31.120 0.000
z 0.000 0.000 -32.001
Traceless
 xyz
x 2.002 -2.040 0.000
y -2.040 -0.340 0.000
z 0.000 0.000 -1.662
Polar
3z2-r2-3.324
x2-y21.561
xy-2.040
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.364 -2.316 0.000
y -2.316 6.575 0.000
z 0.000 0.000 4.966


<r2> (average value of r2) Å2
<r2> 142.682
(<r2>)1/2 11.945