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: MP3=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-194.718365
Energy at 298.15K-194.725383
HF Energy-193.955257
Nuclear repulsion energy152.266868
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 MP3=FULL/6-31+G**
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 3239 3017 15.23      
2 A 3239 3017 33.79      
3 A 3224 3003 0.98      
4 A 3223 3002 6.57      
5 A 3194 2976 20.69      
6 A 3194 2976 20.35      
7 A 3124 2910 9.40      
8 A 3123 2910 64.55      
9 A 2102 1958 9.01      
10 A 1565 1458 4.37      
11 A 1551 1444 8.61      
12 A 1534 1429 5.11      
13 A 1533 1429 5.54      
14 A 1502 1399 0.21      
15 A 1465 1365 4.71      
16 A 1465 1365 1.70      
17 A 1358 1265 19.44      
18 A 1198 1116 0.00      
19 A 1140 1062 2.36      
20 A 1129 1052 2.53      
21 A 1089 1015 1.05      
22 A 1087 1013 2.30      
23 A 995 927 8.81      
24 A 917 854 25.35      
25 A 851 793 0.02      
26 A 715 666 19.06      
27 A 575 535 14.29      
28 A 539 502 6.40      
29 A 293 273 0.83      
30 A 214 200 1.71      
31 A 156 145 0.38      
32 A 143 134 1.07      
33 A 136 127 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 25405.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 23667.8 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 MP3=FULL/6-31+G**
ABC
0.57353 0.07452 0.07204

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.269
C2 0.000 1.307 0.383
C3 0.000 -1.307 0.383
C4 0.583 2.481 -0.398
C5 -0.583 -2.481 -0.398
H6 0.779 1.650 1.055
H7 -0.779 -1.650 1.055
H8 0.313 3.414 0.085
H9 1.663 2.397 -0.434
H10 0.214 2.505 -1.422
H11 -0.313 -3.414 0.085
H12 -1.663 -2.397 -0.434
H13 -0.214 -2.505 -1.422

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31211.31212.63462.63461.98631.98633.43323.00093.02983.43323.00093.0298
C21.31212.61421.52603.91171.08393.13052.15082.14972.17664.74084.14164.2232
C31.31212.61423.91171.52603.13051.08394.74084.14164.22322.15082.14972.1766
C42.63461.52603.91175.09771.68504.58581.08441.08381.08875.98245.37065.1523
C52.63463.91171.52605.09774.58581.68505.98245.37065.15231.08441.08381.0887
H61.98631.08393.13051.68504.58583.64862.06631.88592.68015.27014.95524.9376
H71.98633.13051.08394.58581.68503.64865.27014.95524.93762.06631.88592.6801
H83.43322.15084.74081.08445.98242.06635.27011.76811.76226.85656.15966.1303
H93.00092.14974.14161.08385.37061.88594.95521.76811.75736.15965.83485.3411
H103.02982.17664.22321.08875.15232.68014.93761.76221.75736.13035.34115.0283
H113.43324.74082.15085.98241.08445.27012.06636.85656.15966.13031.76811.7622
H123.00094.14162.14975.37061.08384.95521.88596.15965.83485.34111.76811.7573
H133.02984.22322.17665.15231.08874.93762.68016.13035.34115.02831.76221.7573

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 136.224 C1 C2 H6 111.641
C1 C3 C5 136.224 C1 C3 H7 111.641
C2 C1 C3 170.030 C2 C4 H8 109.807
C2 C4 H9 109.757 C2 C4 H10 111.617
C3 C5 H11 109.807 C3 C5 H12 109.757
C3 C5 H13 111.617 C4 C2 H6 78.419
C5 C3 H7 78.419 H8 C4 H9 109.264
H8 C4 H10 108.372 H9 C4 H10 107.970
H11 C5 H12 109.264 H11 C5 H13 108.372
H12 C5 H13 107.970
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability