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/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-231.772623
Energy at 298.15K-231.782333
HF Energy-230.985964
Nuclear repulsion energy183.868433
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/aug-cc-pVDZ
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 3804 3648 23.97      
2 A 3178 3048 43.15      
3 A 3161 3031 19.20      
4 A 3119 2991 14.60      
5 A 3103 2976 27.14      
6 A 3079 2953 16.19      
7 A 1506 1445 7.19      
8 A 1479 1418 5.56      
9 A 1420 1362 60.67      
10 A 1316 1262 0.96      
11 A 1251 1199 25.88      
12 A 1206 1157 0.43      
13 A 1147 1100 94.74      
14 A 1081 1036 51.91      
15 A 989 948 19.34      
16 A 914 877 1.53      
17 A 752 722 3.68      
18 A 599 575 2.99      
19 A 460 441 3.73      
20 A 202 194 1.83      
21 A 3160 3031 34.49      
22 A 3076 2950 32.17      
23 A 1464 1404 1.98      
24 A 1284 1232 0.11      
25 A 1239 1188 0.31      
26 A 1234 1183 0.10      
27 A 1171 1123 0.04      
28 A 1052 1009 7.46      
29 A 939 901 3.99      
30 A 923 885 0.02      
31 A 784 752 0.44      
32 A 393 376 33.97      
33 A 300 288 67.61      

Unscaled Zero Point Vibrational Energy (zpe) 25390.8 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 24349.8 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 MP2/aug-cc-pVDZ
ABC
0.33704 0.14106 0.11302

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.105 0.656 0.000
C2 0.105 -0.455 1.083
C3 0.105 -0.455 -1.083
C4 0.713 -1.397 0.000
O5 -0.891 1.668 0.000
H6 1.067 1.190 0.000
H7 0.653 -0.279 2.020
H8 -0.933 -0.754 1.311
H9 0.653 -0.279 -2.020
H10 -0.933 -0.754 -1.311
H11 1.812 -1.344 0.000
H12 0.399 -2.449 0.000
H13 -1.753 1.227 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55111.55112.14031.42041.10112.29202.18662.29202.18662.62913.11891.9440
C21.55112.16591.55862.58312.19221.09951.10343.15582.62602.20842.28852.7304
C31.55112.16591.55862.58312.19223.15582.62601.09951.10342.20842.28852.7304
C42.14031.55861.55863.45912.61092.30932.19962.30932.19961.10041.09843.6008
O51.42042.58312.58313.45912.01623.20232.75443.20232.75444.04724.31510.9682
H61.10112.19222.19222.61092.01622.53183.08182.53183.08182.64113.70032.8209
H72.29201.09953.15582.30933.20232.53181.80034.03993.71922.56092.97583.4838
H82.18661.10342.62602.19962.75443.08181.80033.71922.62183.09812.52322.5134
H92.29203.15581.09952.30933.20232.53184.03993.71921.80032.56092.97583.4838
H102.18662.62601.10342.19962.75443.08183.71922.62181.80033.09812.52322.5134
H112.62912.20842.20841.10044.04722.64112.56093.09812.56093.09811.79374.3955
H123.11892.28852.28851.09844.31513.70032.97582.52322.97582.52321.79374.2604
H131.94402.73042.73043.60080.96822.82093.48382.51343.48382.51344.39554.2604

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 86.988 C1 C2 H7 118.707
C1 C2 H8 109.768 C1 C3 C4 86.988
C1 C3 H9 118.707 C1 C3 H10 109.768
C1 O5 H13 107.437 C2 C1 C3 88.561
C2 C1 O5 120.691 C2 C1 H6 110.337
C2 C4 C3 88.030 C2 C4 H11 111.140
C2 C4 H12 117.891 C3 C1 O5 120.691
C3 C1 H6 110.337 C3 C4 H11 111.140
C3 C4 H12 117.891 C4 C2 H7 119.640
C4 C2 H8 110.274 C4 C3 H9 119.640
C4 C3 H10 110.274 O5 C1 H6 105.485
H7 C2 H8 109.617 H9 C3 H10 109.617
H11 C4 H12 109.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability