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All results from a given calculation for C6H12 ((1r,3r)-1,3-dimethylcyclobutane)

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 CS 1A'

Conformer 1 (C2H)

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 (CS)

Jump to S1C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-235.062020
Energy at 298.15K-235.075552
HF Energy-234.190172
Nuclear repulsion energy250.500887
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' 3198 3008 69.68      
2 A' 3194 3004 30.27      
3 A' 3183 2994 36.50      
4 A' 3136 2950 25.26      
5 A' 3130 2944 18.73      
6 A' 3114 2929 5.75      
7 A' 3102 2918 30.56      
8 A' 3098 2914 32.19      
9 A' 1545 1453 10.23      
10 A' 1539 1447 1.61      
11 A' 1535 1444 3.60      
12 A' 1449 1363 10.46      
13 A' 1446 1360 0.83      
14 A' 1411 1327 0.68      
15 A' 1395 1312 9.39      
16 A' 1304 1226 3.98      
17 A' 1276 1200 0.64      
18 A' 1228 1155 0.10      
19 A' 1170 1101 0.39      
20 A' 1075 1012 0.28      
21 A' 983 925 0.77      
22 A' 978 920 0.63      
23 A' 883 831 0.55      
24 A' 825 776 0.84      
25 A' 654 615 1.86      
26 A' 444 418 0.02      
27 A' 335 315 0.13      
28 A' 129 121 0.02      
29 A" 3195 3006 30.51      
30 A" 3193 3004 26.04      
31 A" 3181 2992 14.21      
32 A" 3112 2928 73.98      
33 A" 1536 1445 4.15      
34 A" 1534 1443 0.15      
35 A" 1514 1424 4.49      
36 A" 1317 1239 0.16      
37 A" 1294 1217 0.01      
38 A" 1253 1179 0.01      
39 A" 1161 1092 0.07      
40 A" 1152 1084 0.07      
41 A" 1008 948 2.10      
42 A" 931 876 0.06      
43 A" 924 869 0.34      
44 A" 829 780 0.13      
45 A" 374 352 0.00      
46 A" 263 247 0.06      
47 A" 253 238 0.00      
48 A" 238 224 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 37510.6 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 35282.5 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
0.25560 0.07811 0.07180

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.287 0.108 1.076
C2 0.287 0.108 -1.076
C3 -0.672 0.673 0.000
C4 0.885 -0.833 0.000
C5 -0.963 2.161 0.000
C6 0.287 -2.231 0.000
H7 1.003 0.863 1.411
H8 -0.161 -0.365 1.953
H9 1.003 0.863 -1.411
H10 -0.161 -0.365 -1.953
H11 -1.613 0.115 0.000
H12 1.976 -0.900 0.000
H13 -0.031 2.729 0.000
H14 -0.805 -2.187 0.000
H15 -1.535 2.450 -0.884
H16 -1.535 2.450 0.884
H17 0.601 -2.788 -0.885
H18 0.601 -2.788 0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C12.15181.54791.54982.63312.57451.09291.09272.69583.09822.18332.24212.85112.75993.55612.97333.51162.9196
C22.15181.54791.54982.63312.57452.69583.09821.09291.09272.18332.24212.85112.75992.97333.55612.91963.5116
C31.54791.54792.16641.51643.05762.19832.26982.19832.26981.09343.08002.15452.86262.16462.16463.79213.7921
C41.54981.54982.16643.51861.52012.20972.26462.20972.26462.67201.09263.67842.16524.17364.17362.16452.1645
C52.63312.63311.51643.51864.56592.74583.29192.74583.29192.14644.24371.09214.35071.09211.09215.26515.2651
C62.57452.57453.05761.52014.56593.47492.73793.47492.73793.01862.14974.97011.09245.09995.09991.09191.0919
H71.09292.69582.19832.20972.74583.47491.77652.82233.76573.06462.45952.55773.81593.77193.03914.33183.7108
H81.09273.09822.26982.26463.29192.73791.77653.76573.90612.48032.94413.66132.74754.22623.30953.80872.7557
H92.69581.09292.19832.20972.74583.47492.82233.76571.77653.06462.45952.55773.81593.03913.77193.71084.3318
H103.09821.09272.26982.26463.29192.73793.76573.90611.77652.48032.94413.66132.74753.30954.22622.75573.8087
H112.18332.18331.09342.67202.14643.01863.06462.48033.06462.48033.72953.05572.43982.49782.49783.75663.7566
H122.24212.24213.08001.09264.24372.14972.45952.94412.45952.94413.72954.14753.06354.93304.93302.49712.4971
H132.85112.85112.15453.67841.09214.97012.55773.66132.55773.66133.05574.14754.97691.76741.76745.62355.6235
H142.75992.75992.86262.16524.35071.09243.81592.74753.81592.74752.43983.06354.97694.77664.77661.76631.7663
H153.55612.97332.16464.17361.09215.09993.77194.22623.03913.30952.49784.93301.76744.77661.76855.65685.9269
H162.97333.55612.16464.17361.09215.09993.03913.30953.77194.22622.49784.93301.76744.77661.76855.92695.6568
H173.51162.91963.79212.16455.26511.09194.33183.80873.71082.75573.75662.49715.62351.76635.65685.92691.7695
H182.91963.51163.79212.16455.26511.09193.71082.75574.33183.80873.75662.49715.62351.76635.92695.65681.7695

picture of (1r,3r)-1,3-dimethylcyclobutane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C2 88.065 C1 C3 C5 118.471
C1 C3 H11 110.313 C1 C4 C2 87.929
C1 C4 C6 113.986 C1 C4 H12 115.010
C2 C3 C5 118.471 C2 C3 H11 110.313
C2 C4 C6 113.986 C2 C4 H12 115.010
C3 C1 C4 88.750 C3 C1 H7 111.541
C3 C1 H8 117.499 C3 C2 C4 88.750
C3 C2 H9 111.541 C3 C2 H10 117.499
C3 C5 H13 110.309 C3 C5 H15 111.113
C3 C5 H16 111.113 C4 C1 H7 112.318
C4 C1 H8 116.908 C4 C2 H9 112.318
C4 C2 H10 116.908 C4 C6 H14 110.886
C4 C6 H17 110.866 C4 C6 H18 110.866
C5 C3 H11 109.593 C6 C4 H12 109.643
H7 C1 H8 108.742 H9 C2 H10 108.742
H13 C5 H15 108.033 H13 C5 H16 108.033
H14 C6 H17 107.923 H14 C6 H18 107.923
H15 C5 H16 108.121 H17 C6 H18 108.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability