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All results from a given calculation for C6H12 ((E)-2-Hexene)

using model chemistry: MP2/6-31+G**

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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-235.065397
Energy at 298.15K-235.077659
HF Energy-234.202080
Nuclear repulsion energy226.805589
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 MP2/6-31+G**
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 3218 3027 47.12      
2 A 3206 3015 34.02      
3 A 3203 3013 41.25      
4 A 3203 3013 13.81      
5 A 3200 3010 11.18      
6 A 3184 2995 17.40      
7 A 3166 2978 21.95      
8 A 3141 2955 4.69      
9 A 3110 2925 47.72      
10 A 3109 2925 21.63      
11 A 3105 2920 34.73      
12 A 3087 2903 21.37      
13 A 1745 1642 0.42      
14 A 1548 1456 6.49      
15 A 1544 1452 5.91      
16 A 1541 1449 11.30      
17 A 1535 1444 0.73      
18 A 1521 1431 1.30      
19 A 1519 1429 6.83      
20 A 1456 1369 2.14      
21 A 1453 1367 3.03      
22 A 1420 1336 0.62      
23 A 1371 1289 1.09      
24 A 1356 1276 0.55      
25 A 1340 1261 0.11      
26 A 1317 1239 4.17      
27 A 1281 1205 0.47      
28 A 1208 1137 0.06      
29 A 1143 1075 1.09      
30 A 1128 1061 1.75      
31 A 1088 1024 2.20      
32 A 1083 1019 1.53      
33 A 1062 999 4.29      
34 A 996 937 45.18      
35 A 948 892 4.19      
36 A 924 869 1.74      
37 A 890 837 0.16      
38 A 771 725 0.40      
39 A 752 707 1.05      
40 A 540 508 0.09      
41 A 393 369 1.44      
42 A 315 296 0.94      
43 A 289 272 1.53      
44 A 254 239 0.02      
45 A 201 189 0.85      
46 A 146 138 0.30      
47 A 95 89 0.13      
48 A 78 74 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 37091.0 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 34887.7 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 MP2/6-31+G**
ABC
0.49090 0.04047 0.04002

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.172 0.223 -0.166
C2 1.793 -0.362 -0.234
C3 0.736 0.087 0.464
C4 -0.647 -0.484 0.379
C5 -1.667 0.524 -0.158
C6 -3.083 -0.044 -0.208
H7 3.202 1.066 0.524
H8 3.898 -0.520 0.170
H9 3.500 0.572 -1.147
H10 1.652 -1.212 -0.899
H11 0.872 0.938 1.129
H12 -0.973 -0.818 1.370
H13 -0.636 -1.368 -0.266
H14 -1.356 0.839 -1.157
H15 -1.652 1.419 0.472
H16 -3.792 0.689 -0.593
H17 -3.124 -0.923 -0.853
H18 -3.415 -0.344 0.787

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.49932.51933.92164.84866.26011.09011.09171.09182.21422.73434.54104.12804.67595.01026.99256.43566.6799
C21.49931.34372.51873.57294.88592.14492.14922.14921.08762.09683.22982.62923.49453.94145.69434.98705.3076
C32.51931.34371.49892.52103.87962.65383.23253.23522.09351.08882.13572.12922.75162.73424.68894.20164.1865
C43.92162.51871.49891.53162.54364.15214.54964.54292.72932.21221.09581.09432.14772.15383.49462.80072.8020
C54.84863.57292.52101.53161.52574.94685.67185.26113.81902.87672.14902.15831.09311.09392.17512.16762.1682
C66.26014.88593.87962.54361.52576.42387.00676.67734.92564.28852.74602.78272.15892.15611.09041.09111.0912
H71.09012.14492.65384.15214.94686.42381.76761.76773.10062.41054.65784.61314.86374.86697.09306.77266.7712
H81.09172.14923.23254.54965.67187.00671.76761.75702.58113.49285.02504.63295.58685.88607.82167.10707.3413
H91.09182.14923.23524.54295.26116.67731.76771.75702.57993.49515.31714.65254.86315.46557.31366.79637.2386
H102.21421.08762.09352.72933.81904.92563.10062.58112.57993.05653.49242.37953.65034.44015.77474.78515.4111
H112.73432.09681.08882.21222.87674.28852.41053.49283.49513.05652.55873.08883.19362.65174.97834.83314.4883
H124.54103.22982.13571.09582.14902.74604.65785.02505.31713.49242.55871.75903.04632.50403.75153.09542.5557
H134.12802.62922.12921.09432.15832.78274.61314.63294.65252.37953.08881.75902.48743.05683.78162.59473.1440
H144.67593.49452.75162.14771.09312.15894.86375.58684.86313.65033.19363.04632.48741.75382.50482.51423.0691
H155.01023.94142.73422.15381.09392.15614.86695.88605.46554.44012.65172.50403.05681.75382.49983.06692.5133
H166.99255.69434.68893.49462.17511.09047.09307.82167.31365.77474.97833.75153.78162.50482.49981.76391.7645
H176.43564.98704.20162.80072.16761.09116.77267.10706.79634.78514.83313.09542.59472.51423.06691.76391.7638
H186.67995.30764.18652.80202.16821.09126.77127.34137.23865.41114.48832.55573.14403.06912.51331.76451.7638

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 124.690 C1 C2 H10 116.823
C2 C1 H7 110.868 C2 C1 H8 111.110
C2 C1 H9 111.108 C2 C3 C4 124.669
C2 C3 H11 118.712 C3 C2 H10 118.486
C3 C4 C5 112.580 C3 C4 H12 109.812
C3 C4 H13 109.389 C4 C3 H11 116.606
C4 C5 C6 112.602 C4 C5 H14 108.673
C4 C5 H15 109.104 C5 C4 H12 108.614
C5 C4 H13 109.424 C5 C6 H16 111.405
C5 C6 H17 110.759 C5 C6 H18 110.808
C6 C5 H14 109.957 C6 C5 H15 109.690
H7 C1 H8 108.225 H7 C1 H9 108.228
H8 C1 H9 107.157 H12 C4 H13 106.855
H14 C5 H15 106.630 H16 C6 H17 107.914
H16 C6 H18 107.965 H17 C6 H18 107.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability