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 C6H10 (1,5-Hexadiene)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1Ag
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-39.140201
Energy at 298.15K-39.149785
HF Energy-38.607851
Nuclear repulsion energy114.453071
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-121G
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 3192 3115 15.02      
2 A 3092 3018 8.08      
3 A 3076 3002 56.39      
4 A 3038 2966 41.88      
5 A 2958 2887 3.48      
6 A 1634 1594 4.01      
7 A 1506 1470 2.40      
8 A 1466 1430 1.67      
9 A 1384 1351 0.53      
10 A 1322 1291 0.58      
11 A 1243 1213 0.14      
12 A 1088 1062 0.22      
13 A 1036 1011 2.36      
14 A 985 962 15.15      
15 A 946 923 0.12      
16 A 838 818 22.43      
17 A 787 768 0.23      
18 A 612 597 5.87      
19 A 411 401 0.04      
20 A 342 333 0.21      
21 A 81 79 0.01      
22 A 72 70 0.01      
23 B 3191 3115 56.58      
24 B 3091 3017 19.69      
25 B 3075 3001 14.61      
26 B 3015 2943 0.46      
27 B 2963 2892 73.14      
28 B 1636 1597 9.94      
29 B 1518 1482 8.17      
30 B 1468 1433 0.40      
31 B 1331 1299 0.42      
32 B 1308 1276 0.19      
33 B 1294 1263 2.52      
34 B 1191 1163 2.27      
35 B 991 967 42.78      
36 B 971 947 4.55      
37 B 926 904 0.08      
38 B 839 819 77.35      
39 B 638 623 17.79      
40 B 432 422 0.88      
41 B 206 201 0.09      
42 B 99 96 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 30643.5 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 29908.1 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/CEP-121G
ABC
0.40451 0.04487 0.04359

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.434 0.657 -0.314
C2 0.434 -0.657 -0.314
C3 0.436 1.918 -0.353
C4 -0.436 -1.918 -0.353
C5 0.436 2.882 0.623
C6 -0.436 -2.882 0.623
H7 -1.121 0.639 -1.183
H8 -1.054 0.668 0.602
H9 1.121 -0.639 -1.183
H10 1.054 -0.668 0.602
H11 1.105 2.027 -1.218
H12 -1.105 -2.027 -1.218
H13 1.083 3.761 0.560
H14 -0.216 2.805 1.499
H15 -1.083 -3.761 0.560
H16 0.216 -2.805 1.499

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57451.53292.57552.56623.66071.10781.10612.20242.19242.25062.91113.56382.81944.55003.9617
C21.57452.57551.53293.66072.56622.20242.19241.10781.10612.91112.25064.55003.96173.56382.8194
C31.53292.57553.93461.37134.97542.17992.16712.77402.82491.09934.32382.15572.15475.94945.0780
C42.57551.53293.93464.97541.37132.77402.82492.17992.16714.32381.09935.94945.07802.15572.1547
C52.56623.66071.37134.97545.82933.27392.66904.01533.60282.13715.46511.09321.09566.81465.7579
C63.66072.56624.97541.37135.82934.01533.60283.27392.66905.46512.13716.81465.75791.09321.0956
H71.10782.20242.17992.77403.27394.01531.78632.58013.10182.62432.66634.20063.56444.73234.5651
H81.10612.19242.16712.82492.66903.60281.78633.10182.49513.13443.25263.75992.46454.42883.8049
H92.20241.10782.77402.17994.01533.27392.58013.10181.78632.66632.62434.73234.56514.20063.5644
H102.19241.10612.82492.16713.60282.66903.10182.49511.78633.25263.13444.42883.80493.75992.4645
H112.25062.91111.09934.32382.13715.46512.62433.13442.66633.25264.61852.48343.12046.43885.6148
H122.91112.25064.32381.09935.46512.13712.66633.25262.62433.13444.61856.43885.61482.48343.1204
H133.56384.55002.15575.94941.09326.81464.20063.75994.73234.42882.48346.43881.86707.82766.6889
H142.81943.96172.15475.07801.09565.75793.56442.46454.56513.80493.12045.61481.86706.68895.6263
H154.55003.56385.94942.15576.81461.09324.73234.42884.20063.75996.43882.48347.82766.68891.8670
H163.96172.81945.07802.15475.75791.09564.56513.80493.56442.46455.61483.12046.68895.62631.8670

picture of 1,5-Hexadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.947 C1 C2 H9 109.145
C1 C2 H10 108.482 C1 C3 C5 124.069
C1 C3 H11 116.560 C2 C1 C3 111.947
C2 C1 H7 109.145 C2 C1 H8 108.482
C2 C4 C6 124.069 C2 C4 H12 116.560
C3 C1 H7 110.236 C3 C1 H8 109.336
C3 C5 H13 121.606 C3 C5 H14 121.320
C4 C2 H9 110.236 C4 C2 H10 109.336
C4 C6 H15 121.606 C4 C6 H16 121.320
C5 C3 H11 119.364 C6 C4 H12 119.364
H7 C1 H8 107.580 H9 C2 H10 107.580
H13 C5 H14 117.073 H15 C6 H16 117.073
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability