return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H8O (Cyclobutanol)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-231.755632
Energy at 298.15K-231.765427
HF Energy-230.972788
Nuclear repulsion energy185.236788
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/6-31+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 3860 3625 22.56      
2 A 3228 3032 46.31      
3 A 3211 3016 16.97      
4 A 3171 2979 13.99      
5 A 3154 2963 28.31      
6 A 3133 2942 16.70      
7 A 1559 1464 5.23      
8 A 1534 1440 5.75      
9 A 1449 1360 62.06      
10 A 1342 1260 3.33      
11 A 1296 1217 21.96      
12 A 1238 1162 0.05      
13 A 1169 1098 92.46      
14 A 1101 1034 67.40      
15 A 1009 947 21.22      
16 A 939 882 2.81      
17 A 778 731 4.40      
18 A 615 577 3.29      
19 A 473 444 5.05      
20 A 212 199 2.44      
21 A 3211 3016 32.97      
22 A 3129 2939 34.49      
23 A 1522 1429 1.82      
24 A 1330 1249 0.10      
25 A 1281 1203 0.49      
26 A 1270 1193 0.38      
27 A 1212 1138 0.06      
28 A 1076 1010 9.10      
29 A 963 904 4.92      
30 A 947 889 0.01      
31 A 813 764 0.69      
32 A 400 376 44.75      
33 A 300 282 82.51      

Unscaled Zero Point Vibrational Energy (zpe) 25961.1 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 24382.7 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/6-31+G**
ABC
0.34299 0.14285 0.11457

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.104 0.649 0.000
C2 0.104 -0.453 1.073
C3 0.104 -0.453 -1.073
C4 0.712 -1.384 0.000
O5 -0.889 1.658 0.000
H6 1.055 1.181 0.000
H7 0.645 -0.278 2.002
H8 -0.920 -0.753 1.302
H9 0.645 -0.278 -2.002
H10 -0.920 -0.753 -1.302
H11 1.800 -1.331 0.000
H12 0.407 -2.428 0.000
H13 -1.752 1.225 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53851.53852.12161.41581.08962.27112.17042.27112.17042.60663.09141.9440
C21.53852.14661.54492.56842.17441.08821.09183.12682.60452.19002.26742.7234
C31.53852.14661.54492.56842.17443.12682.60451.08821.09182.19002.26742.7234
C42.12161.54491.54493.43732.58792.28752.18142.28752.18141.08901.08733.5887
O51.41582.56842.56843.43732.00123.17912.74043.17912.74044.02024.28650.9663
H61.08962.17442.17442.58792.00122.51093.05592.51093.05592.62033.66652.8077
H72.27111.08823.12682.28753.17912.51091.77854.00303.68642.53932.94653.4658
H82.17041.09182.60452.18142.74043.05591.77853.68642.60473.07062.50282.5100
H92.27113.12681.08822.28753.17912.51094.00303.68641.77852.53932.94653.4658
H102.17042.60451.09182.18142.74043.05593.68642.60471.77853.07062.50282.5100
H112.60662.19002.19001.08904.02022.62032.53933.07062.53933.07061.77224.3761
H123.09142.26742.26741.08734.28653.66652.94652.50282.94652.50281.77224.2435
H131.94402.72342.72343.58870.96632.80773.46582.51003.46582.51004.37614.2435

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 86.953 C1 C2 H7 118.671
C1 C2 H8 110.047 C1 C3 C4 86.953
C1 C3 H9 118.671 C1 C3 H10 110.047
C1 O5 H13 107.899 C2 C1 C3 88.470
C2 C1 O5 120.715 C2 C1 H6 110.490
C2 C4 C3 88.013 C2 C4 H11 111.322
C2 C4 H12 117.908 C3 C1 O5 120.715
C3 C1 H6 110.490 C3 C4 H11 111.322
C3 C4 H12 117.908 C4 C2 H7 119.622
C4 C2 H8 110.468 C4 C3 H9 119.622
C4 C3 H10 110.468 O5 C1 H6 105.283
H7 C2 H8 109.337 H9 C3 H10 109.337
H11 C4 H12 109.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability