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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2H 1Ag
1 2 yes CS 1A'

Conformer 1 (C2H)

Jump to S1C2
Energy calculated at CBS-Q
 hartrees
Energy at 0K-235.320221
Energy at 298.15K-235.312323
Nuclear repulsion energy 
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 CBS-Q
Rotational Constants (cm-1) from geometry optimized at CBS-Q
See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-235.320221
Energy at 298.15K-235.334509
HF Energy-234.167706
Nuclear repulsion energy249.623156
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3256 3256 175.73      
2 A' 3244 3244 32.76      
3 A' 3238 3238 36.52      
4 A' 3217 3217 12.31      
5 A' 3198 3198 9.34      
6 A' 3196 3196 14.01      
7 A' 3176 3176 40.67      
8 A' 3174 3174 30.22      
9 A' 1644 1644 3.24      
10 A' 1632 1632 2.17      
11 A' 1630 1630 4.45      
12 A' 1553 1553 5.08      
13 A' 1552 1552 0.91      
14 A' 1508 1508 2.69      
15 A' 1495 1495 7.17      
16 A' 1409 1409 1.53      
17 A' 1358 1358 0.48      
18 A' 1300 1300 0.13      
19 A' 1203 1203 0.39      
20 A' 1120 1120 0.32      
21 A' 1035 1035 0.67      
22 A' 1019 1019 0.41      
23 A' 927 927 0.69      
24 A' 851 851 0.81      
25 A' 695 695 1.15      
26 A' 461 461 0.03      
27 A' 345 345 0.07      
28 A' 103 103 0.01      
29 A" 3246 3246 45.84      
30 A" 3242 3242 24.93      
31 A" 3240 3240 38.27      
32 A" 3196 3196 88.67      
33 A" 1635 1635 1.67      
34 A" 1632 1632 0.20      
35 A" 1615 1615 1.99      
36 A" 1425 1425 1.05      
37 A" 1393 1393 0.01      
38 A" 1358 1358 0.11      
39 A" 1245 1245 0.44      
40 A" 1228 1228 0.00      
41 A" 1077 1077 2.07      
42 A" 974 974 0.06      
43 A" 970 970 0.30      
44 A" 870 870 0.10      
45 A" 399 399 0.00      
46 A" 277 277 0.06      
47 A" 264 264 0.00      
48 A" 247 247 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 39035.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 39035.6 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 CBS-Q
ABC
0.25321 0.07755 0.07129

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.250 0.081 1.080
C2 0.250 0.081 -1.080
C3 -0.657 0.722 0.000
C4 0.841 -0.863 0.000
C5 -0.840 2.233 0.000
C6 0.250 -2.270 0.000
H7 0.990 0.786 1.455
H8 -0.240 -0.385 1.933
H9 0.990 0.786 -1.455
H10 -0.240 -0.385 -1.933
H11 -1.634 0.242 0.000
H12 1.926 -0.931 0.000
H13 0.122 2.744 0.000
H14 -0.839 -2.247 0.000
H15 -1.391 2.563 -0.880
H16 -1.391 2.563 0.880
H17 0.568 -2.826 -0.880
H18 0.568 -2.826 0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C12.16071.54941.55132.64302.58711.08851.08822.73333.08822.17742.23642.87682.78843.56302.98203.52112.9315
C22.16071.54941.55132.64302.58712.73333.08821.08851.08822.17742.23642.87682.78842.98203.56302.93153.5211
C31.54941.54942.18041.52173.12632.19842.26642.19842.26641.08863.06692.16682.97522.16822.16823.85593.8559
C41.55131.55132.18043.52231.52602.20362.26532.20362.26532.70971.08773.67782.17704.18194.18192.16912.1691
C52.64302.64301.52173.52234.63262.74943.30922.74943.30922.14344.20271.08944.48031.08941.08945.32485.3248
C62.58712.58713.12631.52604.63263.46412.74363.46412.74363.13952.14515.01551.08945.17895.17891.08911.0891
H71.08852.73332.19842.20362.74943.46411.76442.90923.78943.04912.43722.58943.82923.77863.02634.32173.6817
H81.08823.08822.26642.26533.30922.74361.76443.78943.86592.46422.95403.69602.75014.23423.33543.81142.7784
H92.73331.08852.19842.20362.74943.46412.90923.78941.76443.04912.43722.58943.82923.02633.77863.68174.3217
H103.08821.08822.26642.26533.30922.74363.78943.86591.76442.46422.95403.69602.75013.33544.23422.77843.8114
H112.17742.17741.08862.70972.14343.13953.04912.46423.04912.46423.74823.05682.61302.49402.49403.87783.8778
H122.23642.23643.06691.08774.20272.14512.43722.95402.43722.95403.74824.09433.06274.89754.89752.49212.4921
H132.87682.87682.16683.67781.08945.01552.58943.69602.58943.69603.05684.09435.08331.75971.75975.65725.6572
H142.78842.78842.97522.17704.48031.08943.82922.75013.82922.75012.61303.06275.08334.92114.92111.75821.7582
H153.56302.98202.16824.18191.08945.17893.77864.23423.02633.33542.49404.89751.75974.92111.75985.73425.9983
H162.98203.56302.16824.18191.08945.17893.02633.33543.77864.23422.49404.89751.75974.92111.75985.99835.7342
H173.52112.93153.85592.16915.32481.08914.32173.81143.68172.77843.87782.49215.65721.75825.73425.99831.7609
H182.93153.52113.85592.16915.32481.08913.68172.77844.32173.81143.87782.49215.65721.75825.99835.73421.7609

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 88.418 C1 C3 C5 118.766
C1 C3 H11 110.037 C1 C4 C2 88.278
C1 C4 C6 114.427 C1 C4 H12 114.726
C2 C3 C5 118.766 C2 C3 H11 110.037
C2 C4 C6 114.427 C2 C4 H12 114.726
C3 C1 C4 89.370 C3 C1 H7 111.705
C3 C1 H8 117.399 C3 C2 C4 89.370
C3 C2 H9 111.705 C3 C2 H10 117.399
C3 C5 H13 111.082 C3 C5 H15 111.193
C3 C5 H16 111.193 C4 C1 H7 111.986
C4 C1 H8 117.154 C4 C2 H9 111.986
C4 C2 H10 117.154 C4 C6 H14 111.598
C4 C6 H17 110.981 C4 C6 H18 110.981
C5 C3 H11 109.274 C6 C4 H12 109.164
H7 C1 H8 108.308 H9 C2 H10 108.308
H13 C5 H15 107.731 H13 C5 H16 107.731
H14 C6 H17 107.616 H14 C6 H18 107.616
H15 C5 H16 107.742 H17 C6 H18 107.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability