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 C6H8 ((E)-hexa-1,3,5-triene)

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 CS 1Ag
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-232.591476
Energy at 298.15K-232.598538
HF Energy-231.805745
Nuclear repulsion energy193.799585
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 Ag 3308 3117 0.00      
2 Ag 3215 3029 0.00      
3 Ag 3201 3016 0.00      
4 Ag 3187 3003 0.00      
5 Ag 1734 1634 0.00      
6 Ag 1659 1563 0.00      
7 Ag 1473 1388 0.00      
8 Ag 1364 1285 0.00      
9 Ag 1344 1266 0.00      
10 Ag 1255 1182 0.00      
11 Ag 969 913 0.00      
12 Ag 451 425 0.00      
13 Ag 354 333 0.00      
14 Au 1054 993 70.70      
15 Au 970 914 1.65      
16 Au 910 858 80.49      
17 Au 707 667 8.01      
18 Au 250 235 1.87      
19 Au 94 89 0.29      
20 Bg 1025 966 0.00      
21 Bg 910 858 0.00      
22 Bg 865 815 0.00      
23 Bg 613 578 0.00      
24 Bg 203 191 0.00      
25 Bu 3308 3117 21.81      
26 Bu 3215 3029 5.69      
27 Bu 3202 3017 40.17      
28 Bu 3189 3005 6.96      
29 Bu 1716 1617 6.64      
30 Bu 1509 1422 2.88      
31 Bu 1356 1277 3.67      
32 Bu 1315 1239 0.99      
33 Bu 1190 1121 5.53      
34 Bu 1002 944 2.44      
35 Bu 550 518 3.26      
36 Bu 148 139 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 26406.4 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 24880.1 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=FULL/6-31G*
ABC
0.88049 0.04461 0.04246

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.676 0.000
C2 0.000 -0.676 0.000
C3 1.203 1.485 0.000
C4 -1.203 -1.485 0.000
C5 1.202 2.829 0.000
C6 -1.202 -2.829 0.000
H7 0.954 -1.207 0.000
H8 -0.954 1.207 0.000
H9 2.154 0.951 0.000
H10 -2.154 -0.951 0.000
H11 2.123 3.401 0.000
H12 -2.123 -3.401 0.000
H13 -0.274 -3.394 0.000
H14 0.274 3.394 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.35211.44972.47312.46563.70532.11031.09122.17152.69983.45414.59644.07922.7317
C21.35212.47311.44973.70532.46561.09122.11032.69982.17154.59643.45412.73174.0792
C31.44972.47313.82191.34454.93862.70262.17481.08994.14802.12555.91025.09722.1237
C42.47311.44973.82194.93861.34452.17482.70264.14801.08995.91022.12552.12375.0972
C52.46563.70531.34454.93866.14734.04312.69772.10535.05491.08447.06146.39551.0864
C63.70532.46564.93861.34456.14732.69774.04315.05492.10537.06141.08441.08646.3955
H72.11031.09122.70262.17484.04312.69773.07582.46943.11814.75333.77902.50834.6505
H81.09122.11032.17482.70262.69774.04313.07583.11812.46943.77904.75334.65052.5083
H92.17152.69981.08994.14802.10535.05492.46943.11814.70962.44946.10204.97763.0824
H102.69982.17154.14801.08995.05492.10533.11812.46944.70966.10202.44943.08244.9776
H113.45414.59642.12555.91021.08447.06144.75333.77902.44946.10208.01807.20501.8494
H124.59643.45415.91022.12557.06141.08443.77904.75336.10202.44948.01801.84947.2050
H134.07922.73175.09722.12376.39551.08642.50834.65054.97763.08247.20501.84946.8100
H142.73174.07922.12375.09721.08646.39554.65052.50833.08244.97761.84947.20506.8100

picture of (E)-hexa-1,3,5-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.895 C1 C2 H7 119.084
C1 C3 C5 123.822 C1 C3 H9 116.827
C2 C1 C3 123.895 C2 C1 H8 119.084
C2 C4 C6 123.822 C2 C4 H10 116.827
C3 C1 H8 117.021 C3 C5 H11 121.742
C3 C5 H14 121.409 C4 C2 H7 117.021
C4 C6 H12 121.742 C4 C6 H13 121.409
C5 C3 H9 119.351 C6 C4 H10 119.351
H11 C5 H14 116.849 H12 C6 H13 116.849
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability