return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-195.238353
Energy at 298.15K-195.245299
HF Energy-195.238353
Nuclear repulsion energy152.203984
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 wB97X-D/cc-pVDZ
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 3178 3027 22.89      
2 A 3178 3027 24.25      
3 A 3162 3012 1.42      
4 A 3161 3011 5.66      
5 A 3127 2978 20.44      
6 A 3126 2978 19.16      
7 A 3061 2915 10.41      
8 A 3059 2914 76.50      
9 A 2102 2002 20.44      
10 A 1529 1456 4.13      
11 A 1502 1431 14.40      
12 A 1491 1420 8.11      
13 A 1489 1419 5.52      
14 A 1465 1396 0.18      
15 A 1416 1349 3.32      
16 A 1416 1349 3.79      
17 A 1323 1260 20.52      
18 A 1177 1121 0.03      
19 A 1111 1059 2.47      
20 A 1102 1050 1.98      
21 A 1062 1012 0.56      
22 A 1060 1010 1.67      
23 A 971 925 15.61      
24 A 911 868 27.68      
25 A 837 797 0.01      
26 A 720 686 19.25      
27 A 581 553 17.22      
28 A 553 527 6.56      
29 A 295 281 1.00      
30 A 221 211 1.97      
31 A 149 142 1.23      
32 A 126 120 1.29      
33 A 113 108 1.50      

Unscaled Zero Point Vibrational Energy (zpe) 24887.0 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 23707.3 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 wB97X-D/cc-pVDZ
ABC
0.57210 0.07461 0.07207

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.224
C2 0.000 1.306 0.363
C3 0.000 -1.306 0.363
C4 0.690 2.474 -0.385
C5 -0.690 -2.474 -0.385
H6 0.706 1.582 1.159
H7 -0.706 -1.582 1.159
H8 0.403 3.421 0.065
H9 1.769 2.360 -0.329
H10 0.404 2.487 -1.437
H11 -0.403 -3.421 0.065
H12 -1.769 -2.360 -0.329
H13 -0.404 -2.487 -1.437

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31331.31332.63932.63931.96861.96863.44783.00123.01763.44783.00123.0176
C21.31332.61181.54903.91441.09863.07752.17332.17302.19054.75304.12934.2178
C31.31332.61183.91441.54903.07751.09864.75304.12934.21782.17332.17302.1905
C42.63931.54903.91445.13651.78264.55861.08641.08691.09006.01165.42405.1880
C52.63933.91441.54905.13654.55861.78266.01165.42405.18801.08641.08691.0900
H61.96861.09863.07751.78264.55863.46472.16071.98792.76515.23954.88704.9524
H71.96863.07751.09864.55861.78263.46475.23954.88704.95242.16071.98792.7651
H83.44782.17334.75301.08646.01162.16075.23951.77391.76776.88836.18806.1486
H93.00122.17304.12931.08695.42401.98794.88701.77391.76216.18805.89975.4266
H103.01762.19054.21781.09005.18802.76514.95241.76771.76216.14865.42665.0395
H113.44784.75302.17336.01161.08645.23952.16076.88836.18806.14861.77391.7677
H123.00124.12932.17305.42401.08694.88701.98796.18805.89975.42661.77391.7621
H133.01764.21782.19055.18801.09004.95242.76516.14865.42665.03951.76771.7621

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 134.303 C1 C2 H6 109.083
C1 C3 C5 134.303 C1 C3 H7 109.083
C2 C1 C3 167.799 C2 C4 H8 109.859
C2 C4 H9 109.810 C2 C4 H10 111.008
C3 C5 H11 109.859 C3 C5 H12 109.810
C3 C5 H13 111.008 C4 C2 H6 82.764
C5 C3 H7 82.764 H8 C4 H9 109.415
H8 C4 H10 108.624 H9 C4 H10 108.084
H11 C5 H12 109.415 H11 C5 H13 108.624
H12 C5 H13 108.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.342      
2 C -0.199      
3 C -0.201      
4 C -0.643      
5 C -0.643      
6 H 0.169      
7 H 0.169      
8 H 0.166      
9 H 0.166      
10 H 0.171      
11 H 0.166      
12 H 0.166      
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 -0.255 -0.000 0.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.103 0.000 1.072
y 0.000 -32.503 -0.000
z 1.072 -0.000 -32.044
Traceless
 xyz
x 4.171 0.000 1.072
y 0.000 -2.430 -0.000
z 1.072 -0.000 -1.741
Polar
3z2-r2-3.482
x2-y24.400
xy0.000
xz1.072
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.086 0.000 1.250
y 0.000 6.918 0.000
z 1.250 0.000 7.093


<r2> (average value of r2) Å2
<r2> 171.763
(<r2>)1/2 13.106