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: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-231.383863
Energy at 298.15K-231.393563
HF Energy-230.847523
Nuclear repulsion energy181.512003
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 QCISD/6-31G
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 3604 3473 4.20      
2 A 3117 3003 71.96      
3 A 3103 2990 6.81      
4 A 3081 2969 8.87      
5 A 3049 2938 25.58      
6 A 3026 2916 22.11      
7 A 1558 1501 2.34      
8 A 1546 1490 6.71      
9 A 1427 1375 42.77      
10 A 1354 1305 2.19      
11 A 1290 1243 16.42      
12 A 1242 1197 0.03      
13 A 1128 1087 9.38      
14 A 1093 1053 122.59      
15 A 963 928 19.93      
16 A 918 885 0.43      
17 A 764 736 7.25      
18 A 614 592 4.02      
19 A 450 434 5.90      
20 A 190 183 2.67      
21 A 3101 2988 33.24      
22 A 3022 2912 28.55      
23 A 1532 1476 2.68      
24 A 1330 1282 0.23      
25 A 1296 1249 0.39      
26 A 1273 1226 0.26      
27 A 1212 1168 0.00      
28 A 1045 1007 10.00      
29 A 948 914 13.19      
30 A 905 872 0.29      
31 A 811 782 0.57      
32 A 379 365 81.68      
33 A 322 310 84.10      

Unscaled Zero Point Vibrational Energy (zpe) 25346.4 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 24423.8 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 QCISD/6-31G
ABC
0.32858 0.13700 0.10970

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.125 0.668 0.000
C2 0.125 -0.454 1.099
C3 0.125 -0.454 -1.099
C4 0.678 -1.440 0.000
O5 -0.908 1.691 0.000
H6 1.069 1.229 0.000
H7 0.715 -0.287 2.011
H8 -0.911 -0.716 1.381
H9 0.715 -0.287 -2.011
H10 -0.911 -0.716 -1.381
H11 1.779 -1.471 0.000
H12 0.293 -2.469 0.000
H13 -1.793 1.268 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56991.56992.17941.45391.09872.30292.21202.30292.21202.70393.14182.0099
C21.56992.19731.57682.62172.22031.09931.10463.16942.69982.23132.30192.8019
C31.56992.19731.57682.62172.22033.16942.69981.09931.10462.23132.30192.8019
C42.17941.57681.57683.51002.69752.31842.22612.31842.22611.10151.09893.6664
O51.45392.62172.62173.51002.03123.25432.77463.25432.77464.14964.33030.9807
H61.09872.22032.22032.69752.03122.54283.09972.54283.09972.79133.77882.8632
H72.30291.09933.16942.31843.25432.54281.79534.02173.78562.56462.99753.5713
H82.21201.10462.69982.22612.77463.09971.79533.78562.76213.11632.53612.5734
H92.30293.16941.09932.31843.25432.54284.02173.78561.79532.56462.99753.5713
H102.21202.69981.10462.22612.77463.09973.78562.76211.79533.11632.53612.5734
H112.70392.23132.23131.10154.14962.79132.56463.11632.56463.11631.79044.5016
H123.14182.30192.30191.09894.33033.77882.99752.53612.99752.53611.79044.2805
H132.00992.80192.80193.66640.98072.86323.57132.57343.57132.57344.50164.2805

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 87.671 C1 C2 H7 118.187
C1 C2 H8 110.386 C1 C3 C4 87.671
C1 C3 H9 118.187 C1 C3 H10 110.386
C1 O5 H13 109.753 C2 C1 C3 88.821
C2 C1 O5 120.174 C2 C1 H6 111.385
C2 C4 C3 88.332 C2 C4 H11 111.602
C2 C4 H12 117.589 C3 C1 O5 120.174
C3 C1 H6 111.385 C3 C4 H11 111.602
C3 C4 H12 117.589 C4 C2 H7 118.990
C4 C2 H8 111.011 C4 C3 H9 118.990
C4 C3 H10 111.011 O5 C1 H6 104.589
H7 C2 H8 109.095 H9 C3 H10 109.095
H11 C4 H12 108.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability