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

using model chemistry: B3LYP/3-21G*

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/3-21G*
 hartrees
Energy at 0K-194.234704
Energy at 298.15K-194.242281
Nuclear repulsion energy154.979217
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/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 3230 3107 16.87      
2 A 3159 3039 3.96      
3 A 3148 3028 2.99      
4 A 3035 2920 18.62      
5 A 1723 1658 0.25      
6 A 1530 1472 9.35      
7 A 1506 1449 0.01      
8 A 1359 1307 0.00      
9 A 1303 1254 0.01      
10 A 1114 1072 0.22      
11 A 1048 1008 10.08      
12 A 974 937 50.14      
13 A 923 888 8.40      
14 A 685 659 9.39      
15 A 381 366 0.37      
16 A 313 301 0.45      
17 A 84 81 0.03      
18 A 3230 3107 21.83      
19 A 3159 3039 10.34      
20 A 3148 3028 19.67      
21 A 3075 2958 10.76      
22 A 1705 1640 17.31      
23 A 1500 1443 3.47      
24 A 1362 1310 0.31      
25 A 1347 1296 2.53      
26 A 1188 1143 3.48      
27 A 1048 1008 12.04      
28 A 972 935 49.21      
29 A 960 923 2.33      
30 A 920 885 10.27      
31 A 619 595 15.19      
32 A 465 448 2.47      
33 A 97 93 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25153.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 24197.8 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/3-21G*
ABC
0.64364 0.07864 0.07795

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.690
C2 0.000 1.250 -0.172
C3 0.000 -1.250 -0.172
C4 0.978 2.154 -0.193
C5 -0.978 -2.154 -0.193
H6 -0.888 -0.008 1.336
H7 0.888 0.008 1.336
H8 -0.869 1.367 -0.817
H9 0.869 -1.367 -0.817
H10 0.938 3.027 -0.836
H11 -0.938 -3.027 -0.836
H12 1.857 2.055 0.437
H13 -1.857 -2.055 0.437

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51861.51862.52462.52461.09841.09842.21242.21243.51743.51742.78162.7816
C21.51862.50051.33133.54152.15572.14591.08832.83212.11624.42912.11403.8402
C31.51862.50053.54151.33132.14592.15572.83211.08834.42912.11623.84022.1140
C42.52461.33133.54154.73023.23952.63582.10173.57711.08525.56091.08685.1136
C52.52463.54151.33134.73022.63583.23953.57712.10175.56091.08525.11361.0868
H61.09842.15572.14593.23952.63581.77682.55493.09324.15563.71903.55042.4362
H71.09842.14592.15572.63583.23951.77683.09322.55493.71904.15562.43623.5504
H82.21241.08832.83212.10173.57712.55493.09323.23922.45394.39463.07873.7766
H92.21242.83211.08833.57712.10173.09322.55493.23924.39462.45393.77663.0787
H103.51742.11624.42911.08525.56094.15563.71902.45394.39466.33831.84685.9386
H113.51744.42912.11625.56091.08523.71904.15564.39462.45396.33835.93861.8468
H122.78162.11403.84021.08685.11363.55042.43623.07873.77661.84685.93865.5403
H132.78163.84022.11405.11361.08682.43623.55043.77663.07875.93861.84685.5403

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 124.590 C1 C2 H8 115.135
C1 C3 C5 124.590 C1 C3 H9 115.135
C2 C1 C3 110.835 C2 C1 H6 109.885
C2 C1 H7 109.111 C2 C4 H10 121.938
C2 C4 H12 121.586 C3 C1 H6 109.111
C3 C1 H7 109.885 C3 C5 H11 121.938
C3 C5 H13 121.586 C4 C2 H8 120.262
C5 C3 H9 120.262 H6 C1 H7 107.966
H10 C4 H12 116.476 H11 C5 H13 116.476
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.488      
2 C -0.140      
3 C -0.140      
4 C -0.376      
5 C -0.376      
6 H 0.206      
7 H 0.206      
8 H 0.190      
9 H 0.190      
10 H 0.185      
11 H 0.185      
12 H 0.179      
13 H 0.179      


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 0.040 0.040
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.069 1.067 0.000
y 1.067 -0.225 0.000
z 0.000 0.000 -0.844
Traceless
 xyz
x 1.603 1.067 0.000
y 1.067 -0.337 0.000
z 0.000 0.000 -1.266
Polar
3z2-r2-2.533
x2-y21.293
xy1.067
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.530 3.121 0.000
y 3.121 9.224 0.000
z 0.000 0.000 4.858


<r2> (average value of r2) Å2
<r2> 158.155
(<r2>)1/2 12.576