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

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-194.319663
Energy at 298.15K-194.326977
HF Energy-193.888976
Nuclear repulsion energy152.372687
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 MP2/SDD
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 3249 3136 29.00      
2 A 3149 3040 7.61      
3 A 3131 3022 7.18      
4 A 3018 2913 32.91      
5 A 1655 1598 0.37      
6 A 1512 1460 10.40      
7 A 1478 1426 0.06      
8 A 1326 1280 0.01      
9 A 1277 1232 0.07      
10 A 1084 1047 0.62      
11 A 991 957 33.02      
12 A 905 874 8.69      
13 A 870 840 49.20      
14 A 656 633 12.99      
15 A 366 353 0.48      
16 A 288 278 0.51      
17 A 76 73 0.02      
18 A 3249 3136 36.92      
19 A 3148 3039 17.33      
20 A 3131 3022 38.85      
21 A 3078 2971 20.91      
22 A 1647 1590 17.66      
23 A 1479 1427 4.54      
24 A 1344 1298 0.64      
25 A 1326 1280 0.88      
26 A 1184 1143 2.21      
27 A 997 962 30.61      
28 A 967 933 6.81      
29 A 909 877 6.91      
30 A 869 839 52.95      
31 A 577 557 15.71      
32 A 440 425 1.59      
33 A 73 71 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 24722.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 23865.1 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 MP2/SDD
ABC
0.63971 0.07539 0.07481

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.683
C2 0.000 1.270 -0.183
C3 0.000 -1.270 -0.183
C4 0.997 2.207 -0.180
C5 -0.997 -2.207 -0.180
H6 -0.895 -0.009 1.336
H7 0.895 0.009 1.336
H8 -0.863 1.398 -0.851
H9 0.863 -1.398 -0.851
H10 0.955 3.090 -0.824
H11 -0.955 -3.090 -0.824
H12 1.873 2.105 0.469
H13 -1.873 -2.105 0.469

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53671.53672.57082.57081.10791.10792.24782.24783.56823.56822.82572.8257
C21.53672.53971.36813.61702.17772.16711.09912.88292.15344.50942.15183.9145
C31.53672.53973.61701.36812.16712.17772.88291.09914.50942.15343.91452.1518
C42.57081.36813.61704.84343.28432.67212.13593.67001.09385.68211.09545.2202
C52.57083.61701.36814.84342.67213.28433.67002.13595.68211.09385.22021.0954
H61.10792.17772.16713.28432.67211.78962.60093.13094.20623.76343.58892.4700
H71.10792.16712.17772.67213.28431.78963.13092.60093.76344.20622.47003.5889
H82.24781.09912.88292.13593.67002.60093.13093.28672.48354.48993.11893.8779
H92.24782.88291.09913.67002.13593.13092.60093.28674.48992.48353.87793.1189
H103.56822.15344.50941.09385.68214.20623.76342.48354.48996.46911.86716.0549
H113.56824.50942.15345.68211.09383.76344.20624.48992.48356.46916.05491.8671
H122.82572.15183.91451.09545.22023.58892.47003.11893.87791.86716.05495.6353
H132.82573.91452.15185.22021.09542.47003.58893.87793.11896.05491.86715.6353

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 124.407 C1 C2 H8 116.046
C1 C3 C5 124.407 C1 C3 H9 116.046
C2 C1 C3 111.454 C2 C1 H6 109.805
C2 C1 H7 108.983 C2 C4 H10 121.618
C2 C4 H12 121.336 C3 C1 H6 108.983
C3 C1 H7 109.805 C3 C5 H11 121.618
C3 C5 H13 121.336 C4 C2 H8 119.539
C5 C3 H9 119.539 H6 C1 H7 107.735
H10 C4 H12 117.046 H11 C5 H13 117.046
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.446      
2 C -0.023      
3 C -0.023      
4 C -0.495      
5 C -0.495      
6 H 0.177      
7 H 0.177      
8 H 0.195      
9 H 0.195      
10 H 0.190      
11 H 0.190      
12 H 0.181      
13 H 0.181      


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 7.654 2.827 0.000
y 2.827 9.255 0.000
z 0.000 0.000 5.414


<r2> (average value of r2) Å2
<r2> 164.351
(<r2>)1/2 12.820