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All results from a given calculation for C5H8 (1,3-Pentadiene, (Z)-)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-32.639718
Energy at 298.15K-32.647043
HF Energy-32.041525
Nuclear repulsion energy83.511850
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/CEP-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' 3286 3120 23.74      
2 A' 3227 3064 20.75      
3 A' 3206 3044 36.41      
4 A' 3197 3036 7.67      
5 A' 3184 3023 11.40      
6 A' 3168 3008 0.42      
7 A' 3084 2928 30.43      
8 A' 1731 1643 4.19      
9 A' 1657 1573 2.68      
10 A' 1519 1442 8.84      
11 A' 1483 1408 9.42      
12 A' 1446 1373 3.47      
13 A' 1392 1321 1.07      
14 A' 1324 1257 0.87      
15 A' 1290 1225 1.01      
16 A' 1204 1143 1.21      
17 A' 1068 1014 0.09      
18 A' 976 926 10.86      
19 A' 902 856 0.98      
20 A' 606 575 5.04      
21 A' 382 362 3.38      
22 A' 225 213 0.26      
23 A" 3159 3000 27.40      
24 A" 1506 1430 9.20      
25 A" 1072 1017 5.50      
26 A" 1032 980 41.08      
27 A" 957 908 0.71      
28 A" 839 797 63.37      
29 A" 803 762 13.42      
30 A" 639 607 45.79      
31 A" 347 329 0.30      
32 A" 135 128 0.06      
33 A" 104 99 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 25073.3 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 23804.6 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/CEP-31G*
ABC
0.51204 0.08564 0.07440

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.429 0.170 0.000
C2 1.111 -0.220 0.000
C3 0.000 0.755 0.000
C4 -1.344 0.456 0.000
C5 -1.968 -0.932 0.000
H6 2.706 1.231 0.000
H7 3.243 -0.564 0.000
H8 0.876 -1.290 0.000
H9 0.295 1.813 0.000
H10 -2.049 1.299 0.000
H11 -1.215 -1.734 0.000
H12 -2.612 -1.062 0.890
H13 -2.612 -1.062 -0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.37502.49903.78454.53321.09631.09562.13212.69384.61854.11135.26535.2653
C21.37501.47852.54643.15992.15622.15941.09552.19113.50592.77473.91913.9191
C32.49901.47851.37732.59212.74733.50102.22521.09832.11982.76993.30423.3042
C43.78452.54641.37731.52104.12364.69902.82422.12851.09882.19352.16872.1687
C54.53323.15992.59211.52105.14985.22362.86623.55752.23181.10071.10631.1063
H61.09632.15622.74734.12365.14981.87363.11522.48024.75534.91525.85895.8589
H71.09562.15943.50104.69905.22361.87362.47583.78715.61014.60815.94265.9426
H82.13211.09552.22522.82422.86623.11522.47583.15743.90592.13683.60653.6065
H92.69382.19111.09832.12853.55752.48023.78713.15742.39983.85524.18464.1846
H104.61853.50592.11981.09882.23184.75535.61013.90592.39983.14552.58532.5853
H114.11132.77472.76992.19351.10074.91524.60812.13683.85523.14551.78771.7877
H125.26533.91913.30422.16871.10635.85895.94263.60654.18462.58531.78771.7803
H135.26533.91913.30422.16871.10635.85895.94263.60654.18462.58531.78771.7803

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 122.229 C1 C2 H8 118.874
C2 C1 H6 121.082 C2 C1 H7 121.450
C2 C3 C4 126.135 C2 C3 H9 115.710
C3 C2 H8 118.897 C3 C4 C5 126.781
C3 C4 H10 117.318 C4 C3 H9 118.155
C4 C5 H11 112.593 C4 C5 H12 110.264
C4 C5 H13 110.264 C5 C4 H10 115.901
H6 C1 H7 117.468 H11 C5 H12 108.194
H11 C5 H13 108.194 H12 C5 H13 107.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability