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 C6H12 ((E)-2-Hexene)

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at HSEh1PBE/6-311G**
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-235.631122
Energy at 298.15K-235.643344
HF Energy-235.631122
Nuclear repulsion energy226.961487
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 HSEh1PBE/6-311G**
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 3138 3014 54.28      
2 A 3122 2999 22.21      
3 A 3120 2996 36.20      
4 A 3118 2995 5.24      
5 A 3113 2990 52.58      
6 A 3087 2965 22.24      
7 A 3080 2958 19.03      
8 A 3058 2937 8.00      
9 A 3041 2920 42.48      
10 A 3037 2917 23.89      
11 A 3033 2913 36.66      
12 A 3013 2894 24.34      
13 A 1761 1692 0.59      
14 A 1504 1445 8.53      
15 A 1495 1436 7.41      
16 A 1489 1430 2.60      
17 A 1488 1429 11.05      
18 A 1474 1416 5.94      
19 A 1473 1415 4.59      
20 A 1409 1353 0.66      
21 A 1409 1353 5.81      
22 A 1387 1333 0.63      
23 A 1341 1288 0.97      
24 A 1334 1281 0.48      
25 A 1317 1265 0.04      
26 A 1286 1236 3.34      
27 A 1250 1201 0.25      
28 A 1182 1135 0.05      
29 A 1119 1075 1.14      
30 A 1108 1064 3.35      
31 A 1068 1026 1.96      
32 A 1065 1023 0.58      
33 A 1044 1003 7.82      
34 A 1004 965 38.17      
35 A 931 894 6.86      
36 A 908 872 2.48      
37 A 876 841 0.33      
38 A 785 754 0.58      
39 A 745 715 2.89      
40 A 532 511 0.15      
41 A 390 375 1.34      
42 A 311 298 0.88      
43 A 285 274 1.72      
44 A 245 235 0.05      
45 A 209 201 0.79      
46 A 143 137 0.35      
47 A 97 93 0.05      
48 A 77 74 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 36250.7 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 34815.2 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 HSEh1PBE/6-311G**
ABC
0.50243 0.04039 0.03990

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.173 0.213 -0.160
C2 1.798 -0.366 -0.216
C3 0.739 0.108 0.435
C4 -0.641 -0.466 0.375
C5 -1.677 0.519 -0.172
C6 -3.086 -0.057 -0.192
H7 3.209 1.095 0.484
H8 3.895 -0.517 0.223
H9 3.522 0.504 -1.157
H10 1.669 -1.250 -0.842
H11 0.864 0.994 1.060
H12 -0.953 -0.776 1.382
H13 -0.636 -1.373 -0.240
H14 -1.381 0.820 -1.183
H15 -1.660 1.432 0.435
H16 -3.809 0.662 -0.586
H17 -3.137 -0.955 -0.816
H18 -3.412 -0.339 0.815

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.49332.50823.91064.86016.26521.09291.09591.09582.20602.72624.51474.12714.70655.02047.00916.45086.6800
C21.49331.33022.51113.58614.89362.14882.14862.14891.09082.08573.20782.63413.52733.95175.71175.00595.3111
C32.50821.33021.49522.52483.87952.66103.22473.23132.08311.09182.13082.13072.75992.74074.69354.20934.1923
C43.91062.51111.49521.53012.54304.15594.53914.54102.72622.20541.09951.09672.15072.15533.49702.80892.8091
C54.86013.58612.52481.53011.52214.96395.68185.29243.84402.86382.14812.16061.09601.09702.17592.17212.1721
C66.26524.89363.87952.54301.52216.43557.00896.70244.94554.27492.74642.78152.15882.15521.09341.09471.0948
H71.09292.14882.66104.15594.96396.43551.77141.77163.10312.41744.65134.62664.89074.88157.11196.79486.7831
H81.09592.14863.22474.53915.68187.00891.77141.75712.57473.48894.99194.63505.62145.89167.83567.12257.3338
H91.09582.14893.23134.54105.29246.70241.77161.75712.57133.49645.30274.65404.91345.50077.35496.82617.2589
H102.20601.09082.08312.72623.84404.94553.10312.57472.57133.04993.47122.38563.70154.46235.80764.81545.4220
H112.72622.08571.09182.20542.86384.27492.41743.48893.49643.04992.55663.08963.17802.63734.96504.82984.4856
H124.51473.20782.13081.09952.14812.74644.65134.99195.30273.47122.55661.75823.05092.50473.75443.10432.5614
H134.12712.63412.13071.09672.16062.78154.62664.63504.65402.38563.08961.75822.50043.06243.78532.60043.1452
H144.70653.52732.75992.15071.09602.15884.89075.62144.91343.70153.17803.05092.50041.75242.50512.52363.0758
H155.02043.95172.74072.15531.09702.15524.88155.89165.50074.46232.63732.50473.06241.75242.50003.07342.5199
H167.00915.71174.69353.49702.17591.09347.11197.83567.35495.80764.96503.75443.78532.50512.50001.76621.7667
H176.45085.00594.20932.80892.17211.09476.79487.12256.82614.81544.82983.10432.60042.52363.07341.76621.7655
H186.68005.31114.19232.80912.17211.09486.78317.33387.25895.42204.48562.56143.14523.07582.51991.76671.7655

picture of (E)-2-Hexene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.231 C1 C2 H10 116.369
C2 C1 H7 111.437 C2 C1 H8 111.235
C2 C1 H9 111.263 C2 C3 C4 125.334
C2 C3 H11 118.565 C3 C2 H10 118.399
C3 C4 C5 113.135 C3 C4 H12 109.467
C3 C4 H13 109.626 C4 C3 H11 116.097
C4 C5 C6 112.847 C4 C5 H14 108.837
C4 C5 H15 109.138 C5 C4 H12 108.439
C5 C4 H13 109.573 C5 C6 H16 111.540
C5 C6 H17 111.149 C5 C6 H18 111.152
C6 C5 H14 110.023 C6 C5 H15 109.680
H7 C1 H8 108.049 H7 C1 H9 108.074
H8 C1 H9 106.579 H12 C4 H13 106.371
H14 C5 H15 106.085 H16 C6 H17 107.645
H16 C6 H18 107.684 H17 C6 H18 107.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 C -0.158      
3 C -0.128      
4 C -0.235      
5 C -0.271      
6 C -0.336      
7 H 0.120      
8 H 0.130      
9 H 0.129      
10 H 0.101      
11 H 0.099      
12 H 0.131      
13 H 0.120      
14 H 0.130      
15 H 0.124      
16 H 0.124      
17 H 0.119      
18 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.043 0.039 -0.050 0.076
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.962 -0.070 -0.687
y -0.070 -39.923 1.305
z -0.687 1.305 -40.118
Traceless
 xyz
x 1.058 -0.070 -0.687
y -0.070 -0.382 1.305
z -0.687 1.305 -0.676
Polar
3z2-r2-1.352
x2-y20.961
xy-0.070
xz-0.687
yz1.305


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.201 -0.220 -0.893
y -0.220 8.978 0.594
z -0.893 0.594 8.702


<r2> (average value of r2) Å2
<r2> 294.246
(<r2>)1/2 17.154