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All results from a given calculation for C6H12 (Cyclohexane)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Chair 1A1g
1 2 no twist boat 1A

Conformer 1 (Chair)

Jump to S1C2
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-235.191553
Energy at 298.15K-235.206181
HF Energy-234.246780
Nuclear repulsion energy256.307794
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3115 2951 0.00      
2 A1g 3063 2901 0.00      
3 A1g 1550 1468 0.00      
4 A1g 1205 1141 0.00      
5 A1g 831 787 0.00      
6 A1g 389 368 0.00      
7 A1u 1404 1330 0.00      
8 A1u 1157 1096 0.00      
9 A1u 1138 1078 0.00      
10 A2g 1363 1291 0.00      
11 A2g 1093 1035 0.00      
12 A2u 3130 2964 125.07      
13 A2u 3063 2901 59.91      
14 A2u 1535 1454 21.68      
15 A2u 1055 999 3.58      
16 A2u 531 503 0.86      
17 Eg 3122 2957 0.00      
17 Eg 3122 2957 0.00      
18 Eg 3063 2901 0.00      
18 Eg 3063 2901 0.00      
19 Eg 1522 1441 0.00      
19 Eg 1522 1441 0.00      
20 Eg 1408 1333 0.00      
20 Eg 1408 1333 0.00      
21 Eg 1322 1253 0.00      
21 Eg 1322 1253 0.00      
22 Eg 1069 1012 0.00      
22 Eg 1069 1012 0.00      
23 Eg 804 761 0.00      
23 Eg 804 761 0.00      
24 Eg 427 405 0.00      
24 Eg 427 405 0.00      
25 Eu 3116 2951 79.71      
25 Eu 3116 2951 79.71      
26 Eu 3061 2899 45.88      
26 Eu 3061 2899 45.88      
27 Eu 1527 1446 8.23      
27 Eu 1527 1446 8.23      
28 Eu 1405 1330 0.18      
28 Eu 1405 1330 0.18      
29 Eu 1312 1243 1.49      
29 Eu 1312 1243 1.49      
30 Eu 931 882 1.71      
30 Eu 931 882 1.71      
31 Eu 895 847 4.07      
31 Eu 895 847 4.07      
32 Eu 240 228 0.00      
32 Eu 240 228 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 38034.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 36022.8 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/6-311G*
ABC
0.14447 0.14447 0.08263

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.456 0.233
C2 -1.261 0.728 0.233
C3 1.261 0.728 0.233
C4 0.000 1.456 -0.233
C5 -1.261 -0.728 -0.233
C6 1.261 -0.728 -0.233
H7 0.000 -1.513 1.329
H8 -1.310 0.756 1.329
H9 1.310 0.756 1.329
H10 0.000 1.513 -1.329
H11 -1.310 -0.756 -1.329
H12 1.310 -0.756 -1.329
H13 0.000 -2.489 -0.134
H14 -2.156 1.245 -0.134
H15 2.156 1.245 -0.134
H16 0.000 2.489 0.134
H17 -2.156 -1.245 0.134
H18 2.156 -1.245 0.134

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C12.52252.52252.94971.52881.52881.09802.79542.79543.35462.15512.15511.09573.47503.47503.94672.16832.1683
C22.52252.52251.52881.52882.94972.79541.09802.79542.15512.15513.35463.47501.09573.47502.16832.16833.9467
C32.52252.52251.52882.94971.52882.79542.79541.09802.15513.35462.15513.47503.47501.09572.16833.94672.1683
C42.94971.52881.52882.52252.52253.35462.15512.15511.09802.79542.79543.94672.16832.16831.09573.47503.4750
C51.52881.52882.94972.52252.52252.15512.15513.35462.79541.09802.79542.16832.16833.94673.47501.09573.4750
C61.52882.94971.52882.52252.52252.15513.35462.15512.79542.79541.09802.16833.94672.16833.47503.47501.0957
H71.09802.79542.79543.35462.15512.15512.61992.61994.02713.05843.05841.75883.79323.79324.17642.47942.4794
H82.79541.09802.79542.15512.15513.35462.61992.61993.05843.05844.02713.79321.75883.79322.47942.47944.1764
H92.79542.79541.09802.15513.35462.15512.61992.61993.05844.02713.05843.79323.79321.75882.47944.17642.4794
H103.35462.15512.15511.09802.79542.79544.02713.05843.05842.61992.61994.17642.47942.47941.75883.79323.7932
H112.15512.15513.35462.79541.09802.79543.05843.05844.02712.61992.61992.47942.47944.17643.79321.75883.7932
H122.15513.35462.15512.79542.79541.09803.05844.02713.05842.61992.61992.47944.17642.47943.79323.79321.7588
H131.09573.47503.47503.94672.16832.16831.75883.79323.79324.17642.47942.47944.31124.31124.98542.50342.5034
H143.47501.09573.47502.16832.16833.94673.79321.75883.79322.47942.47944.17644.31124.31122.50342.50344.9854
H153.47503.47501.09572.16833.94672.16833.79323.79321.75882.47944.17642.47944.31124.31122.50344.98542.5034
H163.94672.16832.16831.09573.47503.47504.17642.47942.47941.75883.79323.79324.98542.50342.50344.31124.3112
H172.16832.16833.94673.47501.09573.47502.47942.47944.17643.79321.75883.79322.50342.50344.98544.31124.3112
H182.16833.94672.16833.47503.47501.09572.47944.17642.47943.79323.79321.75882.50344.98542.50344.31124.3112

picture of Cyclohexane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 C2 111.176 C1 C5 H11 109.156
C1 C5 H17 110.319 C1 C6 C3 111.176
C1 C6 H12 109.156 C1 C6 H18 110.319
C2 C4 C3 111.176 C2 C4 H10 109.156
C2 C4 H16 110.319 C2 C5 H11 109.156
C2 C5 H17 110.319 C3 C4 H10 109.156
C3 C4 H16 110.319 C3 C6 H12 109.156
C3 C6 H18 110.319 C4 C2 C5 111.176
C4 C2 H8 109.156 C4 C2 H14 110.319
C4 C3 C6 111.176 C4 C3 H9 109.156
C4 C3 H15 110.319 C5 C1 C6 111.176
C5 C1 H7 109.156 C5 C1 H13 110.319
C5 C2 H8 109.156 C5 C2 H14 110.319
C6 C1 H7 109.156 C6 C1 H13 110.319
C6 C3 H9 109.156 C6 C3 H15 110.319
H7 C1 H13 106.595 H8 C2 H14 106.595
H9 C3 H15 106.595 H10 C4 H16 106.595
H11 C5 H17 106.595 H12 C6 H18 106.595
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (twist boat)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-235.181590
Energy at 298.15K-235.196003
Nuclear repulsion energy256.788570
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/6-311G*
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 3145 2979 100.74      
2 A 3129 2963 0.00      
3 A 3116 2951 5.51      
4 A 3083 2920 0.00      
5 A 3080 2917 53.28      
6 A 3073 2910 0.00      
7 A 1561 1479 0.00      
8 A 1548 1466 17.06      
9 A 1526 1446 0.00      
10 A 1409 1334 0.00      
11 A 1381 1308 0.22      
12 A 1350 1279 0.61      
13 A 1326 1255 0.00      
14 A 1294 1225 0.00      
15 A 1282 1214 0.49      
16 A 1088 1031 0.67      
17 A 1066 1009 0.00      
18 A 961 910 0.00      
19 A 921 872 0.01      
20 A 836 792 0.00      
21 A 796 754 2.69      
22 A 470 445 0.00      
23 A 435 412 0.35      
24 A 293 278 0.00      
25 A 142 135 0.05      
26 B 3138 2972 50.77      
27 B 3129 2963 43.12      
28 B 3115 2950 32.56      
29 B 3082 2919 64.01      
30 B 3070 2908 39.90      
31 B 3070 2907 20.70      
32 B 1539 1458 7.43      
33 B 1536 1454 6.46      
34 B 1526 1446 0.67      
35 B 1404 1330 0.51      
36 B 1400 1325 0.00      
37 B 1395 1321 0.07      
38 B 1333 1263 2.43      
39 B 1197 1134 2.15      
40 B 1166 1104 0.06      
41 B 1151 1090 0.04      
42 B 1135 1075 0.11      
43 B 1035 980 2.36      
44 B 902 854 2.69      
45 B 897 850 1.66      
46 B 769 728 2.42      
47 B 547 518 0.69      
48 B 232 220 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 38037.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 36025.6 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/6-311G*
ABC
0.14793 0.13977 0.08595

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.211 -0.653 0.396
C2 0.000 1.518 -0.000
C3 1.211 -0.653 -0.396
C4 1.211 0.653 0.396
C5 -0.000 -1.518 -0.000
C6 -1.211 0.653 -0.396
H7 -1.174 -0.419 1.466
H8 -0.271 2.174 0.834
H9 2.141 -1.209 -0.236
H10 1.174 0.419 1.466
H11 0.271 -2.174 0.834
H12 -2.141 1.209 -0.236
H13 -2.141 -1.209 0.237
H14 0.271 2.174 -0.835
H15 1.174 -0.419 -1.466
H16 2.141 1.209 0.237
H17 -0.271 -2.174 -0.835
H18 -1.174 0.419 -1.466

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C12.51702.54852.75211.53981.52711.09623.01133.45602.82552.16842.17501.09473.42063.03473.83772.17022.1487
C22.51702.51701.53983.03521.53992.69781.09563.47462.17573.79422.17583.47471.09562.69772.17573.79402.1757
C32.54852.51701.52711.53992.75223.03463.42071.09472.14872.17033.83783.45613.01101.09622.17502.16842.8257
C42.75211.53981.52712.51702.54852.82552.16842.17501.09623.01133.45603.83772.17022.14871.09473.42063.0347
C51.53983.03521.53992.51702.51702.17573.79422.17582.69781.09563.47462.17573.79402.17573.47471.09562.6977
C61.52711.53992.75222.54852.51702.14872.17033.83783.03463.42071.09472.17502.16842.82573.45613.01101.0962
H71.09622.69783.03462.82552.17572.14872.81743.80892.49272.35902.54641.75233.75543.75613.89213.03093.0495
H83.01131.09563.42072.16843.79422.17032.81744.29022.35904.38132.36083.91121.75493.75532.66544.65673.0308
H93.45603.47461.09472.17502.17583.83783.80894.29022.54642.36084.91714.30753.91091.75232.46382.66553.8923
H102.82552.17572.14871.09622.69783.03462.49272.35902.54642.81743.80893.89213.03093.04951.75233.75543.7561
H112.16843.79422.17033.01131.09563.42072.35904.38132.36082.81744.29022.66544.65673.03083.91121.75493.7553
H122.17502.17583.83783.45603.47461.09472.54642.36084.91713.80894.29022.46382.66553.89234.30753.91091.7523
H131.09473.47473.45613.83772.17572.17501.75233.91124.30753.89212.66542.46384.29023.80914.91712.36092.5463
H143.42061.09563.01102.17023.79402.16843.75541.75493.91093.03094.65672.66554.29022.81702.36094.38072.3589
H153.03472.69771.09622.14872.17572.82573.75613.75531.75233.04953.03083.89233.80912.81702.54632.35892.4930
H163.83772.17572.17501.09473.47473.45613.89212.66542.46381.75233.91124.30754.91712.36092.54634.29023.8091
H172.17023.79402.16843.42061.09563.01103.03094.65672.66553.75541.75493.91092.36094.38072.35894.29022.8170
H182.14872.17572.82573.03472.69771.09623.04953.03083.89233.75613.75531.75232.54632.35892.49303.80912.8170

picture of Cyclohexane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 C2 55.844 C1 C5 H11 109.574
C1 C5 H17 109.718 C1 C6 C3 66.052
C1 C6 H12 111.036 C1 C6 H18 108.871
C2 C4 C3 110.305 C2 C4 H10 110.114
C2 C4 H16 110.204 C2 C5 H11 126.796
C2 C5 H17 126.777 C3 C4 H10 108.872
C3 C4 H16 111.035 C3 C6 H12 171.253
C3 C6 H18 82.459 C4 C2 C5 55.844
C4 C2 H8 109.574 C4 C2 H14 109.718
C4 C3 C6 66.052 C4 C3 H9 111.036
C4 C3 H15 108.871 C5 C1 C6 110.305
C5 C1 H7 110.114 C5 C1 H13 110.204
C5 C2 H8 126.796 C5 C2 H14 126.777
C6 C1 H7 108.872 C6 C1 H13 111.035
C6 C3 H9 171.253 C6 C3 H15 82.459
H7 C1 H13 106.223 H8 C2 H14 106.427
H9 C3 H15 106.224 H10 C4 H16 106.223
H11 C5 H17 106.427 H12 C6 H18 106.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability