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All results from a given calculation for C5H8 (2,3-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 C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-32.966285
Energy at 298.15K-32.973357
Nuclear repulsion energy81.787174
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 3099 3020 32.25      
2 A 3078 3000 3.72      
3 A 3046 2968 40.98      
4 A 2978 2902 14.06      
5 A 1524 1485 4.13      
6 A 1509 1470 9.02      
7 A 1438 1402 0.06      
8 A 1427 1390 4.19      
9 A 1167 1137 0.07      
10 A 1102 1073 2.14      
11 A 1072 1044 0.21      
12 A 911 888 28.89      
13 A 814 793 0.02      
14 A 545 531 5.52      
15 A 295 287 1.01      
16 A 164 160 0.11      
17 A 139 136 2.48      
18 A 3099 3020 71.92      
19 A 3077 2998 2.53      
20 A 3046 2968 41.12      
21 A 2977 2901 112.22      
22 A 2018 1967 11.06      
23 A 1515 1477 10.62      
24 A 1508 1470 9.33      
25 A 1424 1388 4.36      
26 A 1324 1290 17.45      
27 A 1105 1077 5.04      
28 A 1069 1041 0.99      
29 A 961 936 13.50      
30 A 723 705 21.29      
31 A 576 561 15.09      
32 A 226 221 1.66      
33 A 152 148 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 24552.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 23926.8 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
0.56270 0.07240 0.06998

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 0.448
C2 0.000 1.328 0.442
C3 0.000 -1.328 0.442
C4 -0.889 2.200 -0.445
C5 0.889 -2.200 -0.445
H6 0.677 1.858 1.119
H7 -0.677 -1.858 1.119
H8 -1.529 2.852 0.169
H9 -0.278 2.853 -1.086
H10 -1.532 1.588 -1.086
H11 1.529 -2.852 0.169
H12 0.278 -2.853 -1.086
H13 1.532 -1.588 -1.086

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32801.32802.53572.53572.08802.08803.24783.25112.68783.24783.25112.6878
C21.32802.65591.52883.74511.09443.32662.17572.17632.17954.45904.45993.6312
C31.32802.65593.74511.52883.32661.09444.45904.45993.63122.17572.17632.1795
C42.53571.52883.74514.74642.23944.35431.10001.10001.09565.63445.22584.5416
C52.53573.74511.52884.74644.35432.23945.63445.22584.54161.10001.10001.0956
H62.08801.09443.32662.23944.35433.95452.59922.60073.13314.87955.21654.1796
H72.08803.32661.09444.35432.23943.95454.87955.21654.17962.59922.60073.1331
H83.24782.17574.45901.10005.63442.59924.87951.77151.78116.47156.11415.5369
H93.25112.17634.45991.10005.22582.60075.21651.77151.78136.11415.73284.7957
H102.68782.17953.63121.09564.54163.13314.17961.78111.78135.53694.79574.4135
H113.24784.45902.17575.63441.10004.87952.59926.47156.11415.53691.77151.7811
H123.25114.45992.17635.22581.10005.21652.60076.11415.73284.79571.77151.7813
H132.68783.63122.17954.54161.09564.17963.13315.53694.79574.41351.78111.7813

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.995 C1 C2 H6 118.756
C1 C3 C5 124.995 C1 C3 H7 118.756
C2 C1 C3 179.437 C2 C4 H8 110.655
C2 C4 H9 110.700 C2 C4 H10 111.220
C3 C5 H11 110.655 C3 C5 H12 110.700
C3 C5 H13 111.220 C4 C2 H6 116.248
C5 C3 H7 116.248 H8 C4 H9 107.265
H8 C4 H10 108.426 H9 C4 H10 108.446
H11 C5 H12 107.265 H11 C5 H13 108.426
H12 C5 H13 108.446
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 0.234      
2 C -0.209      
3 C -0.209      
4 C -0.538      
5 C -0.538      
6 H 0.152      
7 H 0.152      
8 H 0.154      
9 H 0.153      
10 H 0.171      
11 H 0.154      
12 H 0.153      
13 H 0.171      


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 -0.240 0.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.418 -0.265 0.000
y -0.265 -28.146 0.000
z 0.000 0.000 -32.640
Traceless
 xyz
x -2.025 -0.265 0.000
y -0.265 4.384 0.000
z 0.000 0.000 -2.358
Polar
3z2-r2-4.717
x2-y2-4.273
xy-0.265
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.554 -1.016 0.000
y -1.016 14.674 0.000
z 0.000 0.000 6.450


<r2> (average value of r2) Å2
<r2> 144.727
(<r2>)1/2 12.030