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 HOCHCCHOH (allenediol)

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-266.351425
Energy at 298.15K-266.355437
HF Energy-265.558461
Nuclear repulsion energy151.334713
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(T)/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 3701 3551        
2 A 3199 3069        
3 A 1536 1474        
4 A 1326 1272        
5 A 1241 1191        
6 A 954 915        
7 A 918 881        
8 A 515 494        
9 A 499 479        
10 A 331 317        
11 A 114 109        
12 B 3701 3551        
13 B 3199 3069        
14 B 2042 1959        
15 B 1430 1372        
16 B 1299 1246        
17 B 1119 1074        
18 B 846 812        
19 B 616 591        
20 B 485 466        
21 B 138 133        

Unscaled Zero Point Vibrational Energy (zpe) 14605.7 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 14011.3 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(T)/6-31G*
ABC
0.77043 0.07423 0.07249

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.330
C2 0.000 1.322 0.365
C3 0.000 -1.322 0.365
O4 0.787 2.154 -0.405
O5 -0.787 -2.154 -0.405
H6 -0.647 1.909 1.016
H7 0.647 -1.909 1.016
H8 1.361 1.585 -0.953
H9 -1.361 -1.585 -0.953

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.32201.32202.40802.40802.12922.12922.45222.4522
C21.32202.64311.38003.64551.09003.35851.91293.4699
C31.32202.64313.64551.38003.35851.09003.46991.9129
O42.40801.38003.64554.58612.03384.30660.97644.3471
O52.40803.64551.38004.58614.30662.03384.34710.9764
H62.12921.09003.35852.03384.30664.03102.83134.0744
H72.12923.35851.09004.30662.03384.03104.07442.8313
H82.45221.91293.46990.97644.34712.83134.07444.1795
H92.45223.46991.91294.34710.97644.07442.83134.1795

picture of allenediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 126.038 C1 C2 H6 123.662
C1 C3 O5 126.038 C1 C3 H7 123.662
C2 C1 C3 177.011 C2 O4 H8 107.306
C3 O5 H9 107.306 O4 C2 H6 110.298
O5 C3 H7 110.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability