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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-195.039600
Energy at 298.15K-195.046658
HF Energy-194.827439
Nuclear repulsion energy152.029539
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 B2PLYP/6-31G*
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 3176 3015 18.40      
2 A 3161 3001 2.13      
3 A 3129 2970 24.55      
4 A 3072 2916 7.98      
5 A 1557 1477 2.49      
6 A 1534 1456 4.75      
7 A 1482 1407 0.03      
8 A 1452 1378 1.18      
9 A 1188 1127 0.01      
10 A 1119 1062 1.26      
11 A 1085 1030 0.04      
12 A 915 869 20.33      
13 A 841 798 0.00      
14 A 546 519 2.83      
15 A 294 279 1.18      
16 A 172 164 0.01      
17 A 140 133 1.29      
18 B 3176 3015 42.12      
19 B 3160 3000 1.27      
20 B 3129 2970 24.81      
21 B 3071 2915 70.50      
22 B 2080 1974 7.87      
23 B 1544 1465 5.56      
24 B 1533 1456 5.13      
25 B 1449 1376 6.68      
26 B 1347 1279 21.80      
27 B 1126 1068 3.54      
28 B 1082 1027 0.52      
29 B 982 933 11.21      
30 B 716 680 16.70      
31 B 579 550 10.23      
32 B 227 215 0.54      
33 B 156 149 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 25110.6 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 23835.0 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 B2PLYP/6-31G*
ABC
0.57359 0.07429 0.07181

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.417
C2 0.000 1.312 0.415
C3 0.000 -1.312 0.415
C4 -0.877 2.171 -0.462
C5 0.877 -2.171 -0.462
H6 0.676 1.835 1.091
H7 -0.676 -1.835 1.091
H8 -1.517 2.821 0.144
H9 -0.271 2.821 -1.103
H10 -1.516 1.557 -1.100
H11 1.517 -2.821 0.144
H12 0.271 -2.821 -1.103
H13 1.516 -1.557 -1.100

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31171.31172.50072.50072.06882.06883.21423.21522.64973.21423.21522.6497
C21.31172.62341.50863.69661.09003.28912.15672.15702.15684.41034.41043.5804
C31.31172.62343.69661.50863.28911.09004.41034.41043.58042.15672.15702.1568
C42.50071.50863.69664.68232.22164.30111.09541.09541.09175.56885.16144.4749
C52.50073.69661.50864.68234.30112.22165.56885.16144.47491.09541.09541.0917
H62.06881.09003.28912.22164.30113.91212.58382.58413.11144.82505.16264.1242
H72.06883.28911.09004.30112.22163.91214.82505.16264.12422.58382.58413.1114
H83.21422.15674.41031.09545.56882.58384.82501.76271.77386.40536.04775.4686
H93.21522.15704.41041.09545.16142.58415.16261.76271.77396.04775.66714.7278
H102.64972.15683.58041.09174.47493.11144.12421.77381.77395.46864.72784.3452
H113.21424.41032.15675.56881.09544.82502.58386.40536.04775.46861.76271.7738
H123.21524.41042.15705.16141.09545.16262.58416.04775.66714.72781.76271.7739
H132.64973.58042.15684.47491.09174.12423.11145.46864.72784.34521.77381.7739

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 124.768 C1 C2 H6 118.653
C1 C3 C5 124.768 C1 C3 H7 118.653
C2 C1 C3 179.822 C2 C4 H8 110.833
C2 C4 H9 110.858 C2 C4 H10 111.069
C3 C5 H11 110.833 C3 C5 H12 110.858
C3 C5 H13 111.069 C4 C2 H6 116.579
C5 C3 H7 116.579 H8 C4 H9 107.149
H8 C4 H10 108.395 H9 C4 H10 108.403
H11 C5 H12 107.149 H11 C5 H13 108.395
H12 C5 H13 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.225      
2 C -0.293      
3 C -0.293      
4 C -0.482      
5 C -0.482      
6 H 0.168      
7 H 0.168      
8 H 0.163      
9 H 0.162      
10 H 0.170      
11 H 0.163      
12 H 0.162      
13 H 0.170      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.692 -0.934 0.000
y -0.934 12.937 0.000
z 0.000 0.000 5.598


<r2> (average value of r2) Å2
<r2> 172.180
(<r2>)1/2 13.122