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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-32.973518
Energy at 298.15K-32.981070
Nuclear repulsion energy83.697316
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-121G
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 3199 3117 34.80      
2 A 3111 3032 8.20      
3 A 3093 3014 8.11      
4 A 2976 2900 35.96      
5 A 1674 1631 0.81      
6 A 1502 1463 10.66      
7 A 1457 1420 0.26      
8 A 1318 1284 0.12      
9 A 1263 1230 0.00      
10 A 1090 1063 1.82      
11 A 1028 1002 13.88      
12 A 961 937 59.98      
13 A 907 884 4.88      
14 A 672 655 11.80      
15 A 372 362 0.48      
16 A 296 289 0.14      
17 A 89 87 0.02      
18 A 3199 3117 42.26      
19 A 3111 3031 18.21      
20 A 3093 3014 38.91      
21 A 3026 2949 22.40      
22 A 1662 1619 29.20      
23 A 1457 1420 4.45      
24 A 1329 1296 1.89      
25 A 1314 1281 2.65      
26 A 1173 1143 2.55      
27 A 1031 1004 19.55      
28 A 965 941 7.32      
29 A 961 936 53.15      
30 A 907 884 11.41      
31 A 615 599 14.55      
32 A 451 439 2.92      
33 A 100 97 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24699.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 24069.8 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-121G
ABC
0.67313 0.07542 0.07480

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.654
C2 0.000 1.270 -0.196
C3 0.000 -1.270 -0.196
C4 0.960 2.224 -0.157
C5 -0.960 -2.224 -0.157
H6 -0.886 -0.009 1.309
H7 0.886 0.009 1.309
H8 -0.845 1.382 -0.881
H9 0.845 -1.382 -0.881
H10 0.911 3.111 -0.787
H11 -0.911 -3.111 -0.787
H12 1.819 2.143 0.511
H13 -1.819 -2.143 0.511

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52861.52862.55462.55461.10131.10132.23162.23163.54713.54712.81422.8142
C21.52862.54041.35393.62402.16442.15421.09312.86632.13674.51332.13753.9312
C31.52862.54043.62401.35392.15422.16442.86631.09314.51332.13673.93122.1375
C42.55461.35393.62404.84493.24642.65742.11903.67981.08865.68821.09075.2188
C52.55463.62401.35394.84492.65743.24643.67982.11905.68821.08865.21881.0907
H61.10132.16442.15423.24642.65741.77132.59433.11044.16503.74363.54682.4622
H71.10132.15422.16442.65743.24641.77133.11042.59433.74364.16502.46223.5468
H82.23161.09312.86632.11903.67982.59433.11043.23902.46554.49403.09993.9124
H92.23162.86631.09313.67982.11903.11042.59433.23904.49402.46553.91243.0999
H103.54712.13674.51331.08865.68824.16503.74362.46554.49406.48241.85596.0605
H113.54714.51332.13675.68821.08863.74364.16504.49402.46556.48246.06051.8559
H122.81422.13753.93121.09075.21883.54682.46223.09993.91241.85596.06055.6211
H132.81423.93122.13755.21881.09072.46223.54683.91243.09996.06051.85595.6211

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 124.703 C1 C2 H8 115.688
C1 C3 C5 124.703 C1 C3 H9 115.688
C2 C1 C3 112.397 C2 C1 H6 109.703
C2 C1 H7 108.914 C2 C4 H10 121.660
C2 C4 H12 121.567 C3 C1 H6 108.914
C3 C1 H7 109.703 C3 C5 H11 121.660
C3 C5 H13 121.567 C4 C2 H8 119.607
C5 C3 H9 119.607 H6 C1 H7 107.066
H10 C4 H12 116.773 H11 C5 H13 116.773
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 C 0.120      
3 C 0.120      
4 C -0.406      
5 C -0.406      
6 H 0.146      
7 H 0.146      
8 H 0.128      
9 H 0.128      
10 H 0.122      
11 H 0.122      
12 H 0.130      
13 H 0.130      


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 0.108 0.108
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 0.913 0.950 0.000
y 0.950 -0.231 0.000
z 0.000 0.000 -0.682
Traceless
 xyz
x 1.370 0.950 0.000
y 0.950 -0.347 0.000
z 0.000 0.000 -1.023
Polar
3z2-r2-2.046
x2-y21.144
xy0.950
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.779 3.317 0.000
y 3.317 11.187 0.000
z 0.000 0.000 6.314


<r2> (average value of r2) Å2
<r2> 132.516
(<r2>)1/2 11.512