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All results from a given calculation for C6H12 ((Z)-hex-2-ene)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

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

Conformer 1 (C1)

Jump to S1C2
Vibrational Frequencies calculated at CISD/3-21G*
Rotational Constants (cm-1) from geometry optimized at CISD/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-233.391272
Energy at 298.15K-233.403698
HF Energy-232.881601
Nuclear repulsion energy229.786498
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 CISD/3-21G*
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 3233 3021 53.06      
2 A 3213 3003 6.43      
3 A 3202 2992 26.53      
4 A 3191 2982 43.07      
5 A 3187 2977 35.49      
6 A 3175 2966 0.74      
7 A 3164 2956 21.85      
8 A 3157 2950 2.50      
9 A 3129 2923 20.13      
10 A 3122 2918 20.83      
11 A 3120 2915 30.67      
12 A 3116 2911 11.07      
13 A 1798 1680 0.21      
14 A 1627 1520 8.55      
15 A 1623 1516 7.61      
16 A 1621 1515 5.43      
17 A 1614 1508 3.31      
18 A 1612 1506 3.29      
19 A 1602 1497 0.89      
20 A 1524 1424 7.11      
21 A 1521 1421 0.84      
22 A 1519 1419 7.32      
23 A 1457 1361 0.58      
24 A 1414 1321 0.03      
25 A 1394 1303 0.40      
26 A 1383 1292 0.90      
27 A 1347 1258 0.17      
28 A 1240 1159 1.36      
29 A 1176 1099 2.92      
30 A 1157 1081 0.50      
31 A 1134 1059 0.94      
32 A 1079 1008 0.80      
33 A 1059 989 2.20      
34 A 1015 949 4.26      
35 A 952 890 1.29      
36 A 931 870 11.79      
37 A 901 842 3.68      
38 A 787 735 3.85      
39 A 761 711 35.48      
40 A 602 563 7.43      
41 A 498 466 1.09      
42 A 382 357 0.02      
43 A 309 288 0.04      
44 A 248 232 0.00      
45 A 210 196 0.02      
46 A 112 105 0.25      
47 A 95 89 0.00      
48 A 38 36 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 37873.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 35389.0 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 CISD/3-21G*
ABC
0.26743 0.05060 0.04644

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.421 0.992 -0.041
C2 1.988 -0.457 -0.170
C3 0.792 -0.972 0.110
C4 -0.441 -0.235 0.597
C5 -1.541 -0.190 -0.497
C6 -2.826 0.508 0.004
H7 1.617 1.628 0.325
H8 3.265 1.076 0.649
H9 2.747 1.377 -1.010
H10 2.762 -1.126 -0.532
H11 0.643 -2.036 -0.045
H12 -0.197 0.784 0.898
H13 -0.843 -0.747 1.478
H14 -1.145 0.338 -1.368
H15 -1.774 -1.210 -0.813
H16 -3.587 0.534 -0.778
H17 -3.236 -0.023 0.866
H18 -2.608 1.535 0.307

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.51782.55593.17894.15935.26911.08881.09321.09332.20053.51162.78893.99803.86054.80006.07025.81855.0704
C21.51781.33172.55693.55364.91212.17472.15702.15611.08522.07802.73033.28843.44653.88955.69465.34315.0315
C32.55591.33171.51672.53403.90982.73583.25593.25542.07761.08602.16412.14372.76582.73684.71494.20664.2286
C43.17892.55691.51671.55182.56692.78933.93193.91813.51112.19811.09101.09492.16432.17103.51832.81572.8128
C54.15933.55362.53401.55181.54543.73475.10014.59414.40322.89502.16832.16731.09231.09332.18862.18152.1813
C65.26914.91213.90982.56691.54544.59256.15115.73075.84584.30162.79052.77052.17632.17361.09161.09231.0923
H71.08882.17472.73582.78933.73474.59251.76831.76763.10313.80932.08053.60813.48654.56545.43045.15434.2260
H81.09322.15703.25593.93195.10016.15111.76831.76422.54904.12863.48324.57044.90505.72307.01996.59705.9012
H91.09332.15613.25543.91814.59415.73071.76761.76422.54864.12463.55844.85744.04425.21276.39416.42505.5173
H102.20051.08522.07763.51114.40325.84583.10312.54902.54862.35703.80114.14494.25444.54476.56666.25646.0512
H113.51162.07801.08602.19812.89504.30163.80934.12864.12462.35703.09062.48853.25252.66655.00344.46414.8418
H122.78892.73032.16411.09102.16832.79052.08053.48323.55843.80113.09061.76012.49673.06463.79013.14492.5937
H133.99803.28842.14371.09492.16732.77053.60814.57044.85744.14492.48851.76013.06022.51543.77592.57363.1129
H143.86053.44652.76582.16431.09232.17633.48654.90504.04424.25443.25252.49673.06021.76052.52003.08102.5256
H154.80003.88952.73682.17101.09332.17364.56545.72305.21274.54472.66653.06462.51541.76052.51632.52283.0793
H166.07025.69464.71493.51832.18861.09165.43047.01996.39416.56665.00343.79013.77592.52002.51631.77091.7705
H175.81855.34314.20662.81572.18151.09235.15436.59706.42506.25644.46413.14492.57363.08102.52281.77091.7700
H185.07045.03154.22862.81282.18131.09234.22605.90125.51736.05124.84182.59373.11292.52563.07931.77051.7700

picture of (Z)-hex-2-ene state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 127.408 C1 C2 H10 114.399
C2 C1 H7 112.041 C2 C1 H8 110.347
C2 C1 H9 110.267 C2 C3 C4 127.584
C2 C3 H11 118.165 C3 C2 H10 118.192
C3 C4 C5 111.340 C3 C4 H12 111.122
C3 C4 H13 109.272 C4 C3 H11 114.227
C4 C5 C6 111.949 C4 C5 H14 108.631
C4 C5 H15 109.092 C5 C4 H12 109.018
C5 C4 H13 108.713 C5 C6 H16 111.012
C5 C6 H17 110.416 C5 C6 H18 110.400
C6 C5 H14 109.999 C6 C5 H15 109.735
H7 C1 H8 108.266 H7 C1 H9 108.204
H8 C1 H9 107.575 H12 C4 H13 107.261
H14 C5 H16 94.410 H16 C6 H17 108.361
H16 C6 H18 108.330 H17 C6 H18 108.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability