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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-194.597438
Energy at 298.15K-194.604466
HF Energy-193.936312
Nuclear repulsion energy152.205959
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=FULL/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 3210 3025 9.94      
2 A 3190 3006 4.35      
3 A 3175 2992 18.40      
4 A 3100 2921 7.16      
5 A 1569 1478 2.58      
6 A 1548 1459 5.30      
7 A 1491 1405 0.01      
8 A 1465 1380 2.38      
9 A 1199 1129 0.03      
10 A 1129 1064 1.15      
11 A 1097 1033 0.04      
12 A 921 868 22.57      
13 A 851 802 0.01      
14 A 543 511 2.94      
15 A 293 276 1.22      
16 A 163 153 0.09      
17 A 137 129 1.27      
18 A 3211 3025 29.48      
19 A 3190 3006 2.98      
20 A 3175 2992 18.56      
21 A 3100 2920 50.01      
22 A 2083 1963 3.30      
23 A 1558 1468 6.68      
24 A 1547 1458 5.73      
25 A 1463 1379 4.53      
26 A 1355 1277 16.36      
27 A 1139 1074 3.98      
28 A 1094 1030 0.59      
29 A 999 941 10.36      
30 A 718 676 19.15      
31 A 578 545 10.02      
32 A 220 207 0.66      
33 A 148 139 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 25328.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 23864.3 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 MP2=FULL/6-31G*
ABC
0.56958 0.07474 0.07222

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.419
C2 0.000 1.314 0.417
C3 0.000 -1.314 0.417
C4 -0.880 2.159 -0.464
C5 0.880 -2.159 -0.464
H6 0.676 1.841 1.091
H7 -0.676 -1.841 1.091
H8 -1.526 2.806 0.138
H9 -0.279 2.807 -1.109
H10 -1.512 1.531 -1.095
H11 1.526 -2.806 0.138
H12 0.279 -2.807 -1.109
H13 1.512 -1.531 -1.095

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31371.31372.49322.49322.07272.07273.20653.20832.63193.20653.20832.6319
C21.31372.62731.50483.68901.09053.29572.15252.15312.14954.40214.40273.5591
C31.31372.62733.68901.50483.29571.09054.40214.40273.55912.15252.15312.1495
C42.49321.50483.68904.66292.22244.29621.09471.09471.09185.55015.13984.4431
C52.49323.68901.50484.66294.29622.22245.55015.13984.44311.09471.09471.0918
H62.07271.09053.29572.22244.29623.92172.58582.58573.10844.81915.15744.1052
H72.07273.29571.09054.29622.22243.92174.81915.15744.10522.58582.58573.1084
H83.20652.15254.40211.09475.55012.58584.81911.76441.77406.38846.02645.4375
H93.20832.15314.40271.09475.13982.58575.15741.76441.77426.02645.64104.6932
H102.63192.14953.55911.09184.44313.10844.10521.77401.77425.43754.69324.3043
H113.20654.40212.15255.55011.09474.81912.58586.38846.02645.43751.76441.7740
H123.20834.40272.15315.13981.09475.15742.58576.02645.64104.69321.76441.7742
H132.63193.55912.14954.44311.09184.10523.10845.43754.69324.30431.77401.7742

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 124.264 C1 C2 H6 118.819
C1 C3 C5 124.264 C1 C3 H7 118.819
C2 C1 C3 179.753 C2 C4 H8 110.813
C2 C4 H9 110.858 C2 C4 H10 110.744
C3 C5 H11 110.813 C3 C5 H12 110.858
C3 C5 H13 110.744 C4 C2 H6 116.918
C5 C3 H7 116.918 H8 C4 H9 107.385
H8 C4 H10 108.455 H9 C4 H10 108.474
H11 C5 H12 107.385 H11 C5 H13 108.455
H12 C5 H13 108.474
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability