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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-33.022902
Energy at 298.15K-33.030366
Nuclear repulsion energy84.094428
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 3201 3103 27.13      
2 A 3122 3027 7.35      
3 A 3111 3016 5.86      
4 A 3001 2909 31.16      
5 A 1685 1634 0.82      
6 A 1485 1440 7.08      
7 A 1444 1400 0.09      
8 A 1306 1266 0.13      
9 A 1257 1218 0.02      
10 A 1076 1043 3.65      
11 A 1018 987 14.95      
12 A 924 896 48.57      
13 A 902 875 4.88      
14 A 667 647 11.47      
15 A 367 356 0.49      
16 A 297 288 0.11      
17 A 90 87 0.01      
18 A 3201 3103 33.18      
19 A 3121 3026 16.66      
20 A 3111 3016 40.30      
21 A 3042 2949 21.19      
22 A 1671 1620 25.53      
23 A 1446 1402 3.11      
24 A 1320 1280 1.72      
25 A 1294 1254 7.20      
26 A 1158 1123 2.82      
27 A 1020 989 21.77      
28 A 952 923 2.10      
29 A 923 895 46.36      
30 A 888 861 8.53      
31 A 605 587 13.21      
32 A 447 434 3.22      
33 A 102 99 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24628.1 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 23874.5 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 B3LYP/CEP-121G*
ABC
0.66252 0.07673 0.07613

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 0.666
C2 0.000 1.262 -0.184
C3 0.000 -1.262 -0.184
C4 0.967 2.194 -0.172
C5 -0.967 -2.194 -0.172
H6 -0.886 -0.009 1.319
H7 0.886 0.009 1.319
H8 -0.856 1.386 -0.853
H9 0.856 -1.386 -0.853
H10 0.916 3.078 -0.806
H11 -0.916 -3.078 -0.806
H12 1.839 2.105 0.478
H13 -1.839 -2.105 0.478

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52181.52182.53992.53991.10051.10052.22712.22713.53293.53292.80112.8011
C21.52182.52501.34283.58962.15862.14801.09322.86252.12674.47982.12803.8932
C31.52182.52503.58961.34282.14802.15862.86251.09324.47982.12673.89322.1280
C42.53991.34283.58964.79583.24162.64632.10693.64641.08935.63461.09115.1744
C52.53993.58961.34284.79582.64633.24163.64642.10695.63461.08935.17441.0911
H61.10052.15862.14803.24162.64631.77202.58143.10574.15843.73313.54942.4507
H71.10052.14802.15862.64633.24161.77203.10572.58143.73314.15842.45073.5494
H82.22711.09322.86252.10693.64642.58143.10573.25752.45044.46493.09013.8630
H92.22712.86251.09323.64642.10693.10572.58143.25754.46492.45043.86303.0901
H103.53292.12674.47981.08935.63464.15843.73312.45044.46496.42331.85716.0083
H113.53294.47982.12675.63461.08933.73314.15844.46492.45046.42336.00831.8571
H122.80112.12803.89321.09115.17443.54942.45073.09013.86301.85716.00835.5895
H132.80113.89322.12805.17441.09112.45073.54943.86303.09016.00831.85715.5895

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 124.792 C1 C2 H8 115.814
C1 C3 C5 124.792 C1 C3 H9 115.814
C2 C1 C3 112.111 C2 C1 H6 109.757
C2 C1 H7 108.929 C2 C4 H10 121.613
C2 C4 H12 121.587 C3 C1 H6 108.929
C3 C1 H7 109.757 C3 C5 H11 121.613
C3 C5 H13 121.587 C4 C2 H8 119.388
C5 C3 H9 119.388 H6 C1 H7 107.236
H10 C4 H12 116.800 H11 C5 H13 116.800
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 -0.432      
2 C 0.046      
3 C 0.046      
4 C -0.488      
5 C -0.488      
6 H 0.172      
7 H 0.172      
8 H 0.165      
9 H 0.165      
10 H 0.158      
11 H 0.158      
12 H 0.163      
13 H 0.163      


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 0.105 0.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.070 0.989 0.000
y 0.989 -0.258 0.000
z 0.000 0.000 -0.812
Traceless
 xyz
x 1.605 0.989 0.000
y 0.989 -0.387 0.000
z 0.000 0.000 -1.219
Polar
3z2-r2-2.437
x2-y21.328
xy0.989
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.930 3.227 0.000
y 3.227 11.305 0.000
z 0.000 0.000 6.474


<r2> (average value of r2) Å2
<r2> 130.791
(<r2>)1/2 11.436