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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-32.940838
Energy at 298.15K-32.948040
Nuclear repulsion energy83.788116
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 B3LYP/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 3211 3110 18.08      
2 A 3133 3034 18.51      
3 A 3129 3030 76.32      
4 A 3128 3030 20.00      
5 A 3121 3023 69.62      
6 A 3055 2958 36.94      
7 A 3039 2943 34.00      
8 A 3016 2921 60.32      
9 A 2034 1970 34.01      
10 A 1513 1465 7.81      
11 A 1507 1460 9.37      
12 A 1501 1453 0.50      
13 A 1477 1431 5.94      
14 A 1430 1385 7.92      
15 A 1378 1335 12.23      
16 A 1340 1298 2.92      
17 A 1277 1237 0.05      
18 A 1157 1120 2.17      
19 A 1103 1068 4.62      
20 A 1093 1059 2.89      
21 A 1014 982 0.27      
22 A 1003 971 1.59      
23 A 910 882 23.53      
24 A 889 860 104.12      
25 A 843 817 2.84      
26 A 792 766 8.20      
27 A 621 601 1.78      
28 A 525 509 7.74      
29 A 349 338 4.01      
30 A 314 304 9.76      
31 A 249 241 0.12      
32 A 144 139 0.63      
33 A 83 80 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 24688.9 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 23908.8 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 B3LYP/CEP-31G
ABC
0.32381 0.10346 0.08219

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.384 0.512 -0.001
C2 1.460 -1.039 0.000
C3 -0.048 1.077 0.001
C4 -1.168 0.331 -0.001
C5 -2.281 -0.432 -0.000
H6 1.914 0.914 -0.887
H7 1.917 0.916 0.882
H8 0.965 -1.459 0.893
H9 2.513 -1.375 -0.002
H10 0.961 -1.461 -0.889
H11 -0.146 2.170 0.003
H12 -2.753 -0.752 0.937
H13 -2.756 -0.749 -0.936

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55301.53922.55853.78421.10781.10782.20442.19882.20442.25604.42574.4272
C21.55302.59862.96463.79042.19272.19271.10361.10491.10363.58884.32564.3287
C31.53922.59861.34572.69462.15972.15952.87263.54532.87231.09753.39613.3975
C42.55852.96461.34571.34903.25973.26192.92484.05762.92142.10372.13572.1358
C53.78423.79042.69461.34904.49394.49623.51984.88603.51563.36531.09651.0965
H61.10782.19272.15973.25974.49391.76873.11442.52602.55932.57165.28004.9574
H71.10782.19272.15953.26194.49621.76872.55872.52643.11432.56934.95885.2832
H82.20441.10362.87262.92483.51983.11442.55871.79001.78133.89813.78484.2062
H92.19881.10493.54534.05764.88602.52602.52641.79001.78994.43125.38515.3876
H102.20441.10362.87232.92143.51562.55933.11431.78131.78993.89934.19853.7846
H112.25603.58881.09752.10373.36532.57162.56933.89814.43123.89934.02494.0265
H124.42574.32563.39612.13571.09655.28004.95883.78485.38514.19854.02491.8727
H134.42724.32873.39752.13581.09654.95745.28324.20625.38763.78464.02651.8727

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 111.018 C1 C2 H9 110.505
C1 C2 H10 111.020 C1 C3 C4 124.831
C1 C3 H11 116.653 C2 C1 C3 114.357
C2 C1 H6 109.858 C2 C1 H7 109.854
C3 C1 H6 108.248 C3 C1 H7 108.236
C3 C4 C5 179.201 C4 C3 H11 118.516
C4 C5 H12 121.350 C4 C5 H13 121.362
H6 C1 H7 105.932 H8 C2 H9 108.286
H8 C2 H10 107.613 H9 C2 H10 108.283
H12 C5 H13 117.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 C -0.385      
3 C -0.158      
4 C -0.236      
5 C -0.349      
6 H 0.121      
7 H 0.120      
8 H 0.141      
9 H 0.147      
10 H 0.141      
11 H 0.245      
12 H 0.185      
13 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.599 0.048 0.001 0.601
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.153 2.066 0.000
y 2.066 -31.335 0.001
z 0.000 0.001 -31.671
Traceless
 xyz
x 1.351 2.066 0.000
y 2.066 -0.424 0.001
z 0.000 0.001 -0.927
Polar
3z2-r2-1.854
x2-y21.183
xy2.066
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.364 2.535 0.004
y 2.535 7.584 0.003
z 0.004 0.003 5.127


<r2> (average value of r2) Å2
<r2> 122.324
(<r2>)1/2 11.060