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All results from a given calculation for C4H8O (Cyclobutanol)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-42.650790
Energy at 298.15K-42.660473
HF Energy-42.171844
Nuclear repulsion energy101.259477
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/CEP-121G
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 3611 3525 12.40      
2 A 3105 3030 103.82      
3 A 3088 3014 9.07      
4 A 3069 2995 5.07      
5 A 3015 2943 33.26      
6 A 2995 2923 30.08      
7 A 1523 1487 4.20      
8 A 1518 1481 6.35      
9 A 1411 1377 35.63      
10 A 1335 1303 3.80      
11 A 1277 1247 16.50      
12 A 1226 1196 0.07      
13 A 1115 1088 7.59      
14 A 1067 1041 128.31      
15 A 949 926 32.41      
16 A 914 892 1.36      
17 A 749 731 9.31      
18 A 597 583 5.00      
19 A 444 433 5.75      
20 A 196 191 2.99      
21 A 3083 3009 42.39      
22 A 2991 2919 49.25      
23 A 1501 1465 3.55      
24 A 1323 1292 0.46      
25 A 1279 1249 0.26      
26 A 1262 1232 0.83      
27 A 1189 1161 0.01      
28 A 1030 1005 13.67      
29 A 930 908 8.99      
30 A 905 883 1.05      
31 A 795 776 0.24      
32 A 373 364 79.80      
33 A 311 303 79.76      

Unscaled Zero Point Vibrational Energy (zpe) 25086.6 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 24484.5 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/CEP-121G
ABC
0.32473 0.13458 0.10793

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.132 0.668 0.000
C2 0.132 -0.460 1.107
C3 0.132 -0.460 -1.107
C4 0.725 -1.437 0.000
O5 -0.925 1.701 0.000
H6 1.068 1.243 0.000
H7 0.708 -0.284 2.027
H8 -0.905 -0.744 1.363
H9 0.708 -0.284 -2.027
H10 -0.905 -0.744 -1.363
H11 1.827 -1.421 0.000
H12 0.373 -2.480 0.000
H13 -1.808 1.265 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.58021.58022.18721.47801.09922.31262.21972.31262.21972.69053.15672.0293
C21.58022.21331.59112.64832.23681.10061.10563.19152.69372.24122.31542.8217
C31.58022.21331.59112.64832.23683.19152.69371.10061.10562.24122.31542.8217
C42.18721.59111.59113.54592.70252.33282.23542.33282.23541.10251.10013.7035
O51.47802.64832.64833.54592.04503.27372.79973.27372.79974.16224.37780.9851
H61.09922.23682.23682.70252.04502.56343.11502.56343.11502.77043.78732.8761
H72.31261.10063.19152.33283.27372.56341.80484.05493.78312.58013.00763.5830
H82.21971.10562.69372.23542.79973.11501.80483.78312.72623.12802.55042.5898
H92.31263.19151.10062.33283.27372.56344.05493.78311.80482.58013.00763.5830
H102.21972.69371.10562.23542.79973.11503.78312.72621.80483.12802.55042.5898
H112.69052.24122.24121.10254.16222.77042.58013.12802.58013.12801.79884.5197
H123.15672.31542.31541.10014.37783.78733.00762.55043.00762.55041.79884.3331
H132.02932.82172.82173.70350.98512.87613.58302.58983.58302.58984.51974.3331

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 87.212 C1 C2 H7 118.124
C1 C2 H8 110.224 C1 C3 C4 87.212
C1 C3 H9 118.124 C1 C3 H10 110.224
C1 O5 H13 109.316 C2 C1 C3 88.905
C2 C1 O5 119.948 C2 C1 H6 111.940
C2 C4 C3 88.142 C2 C4 H11 111.326
C2 C4 H12 117.559 C3 C1 O5 119.948
C3 C1 H6 111.940 C3 C4 H11 111.326
C3 C4 H12 117.559 C4 C2 H7 119.030
C4 C2 H8 110.693 C4 C3 H9 119.030
C4 C3 H10 110.693 O5 C1 H6 104.063
H7 C2 H8 109.786 H9 C3 H10 109.786
H11 C4 H12 109.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability