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: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-266.351762
Energy at 298.15K-266.355800
HF Energy-265.558314
Nuclear repulsion energy151.300689
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 MP4/6-31G*
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 3699 3532        
2 A 3199 3055        
3 A 1531 1462        
4 A 1321 1262        
5 A 1242 1186        
6 A 952 909        
7 A 922 880        
8 A 525 501        
9 A 502 479        
10 A 333 318        
11 A 114 109        
12 B 3699 3532        
13 B 3200 3056        
14 B 2036 1944        
15 B 1427 1363        
16 B 1296 1237        
17 B 1118 1068        
18 B 852 813        
19 B 616 588        
20 B 500 477        
21 B 139 133        

Unscaled Zero Point Vibrational Energy (zpe) 14611.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 13950.9 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 MP4/6-31G*
ABC
0.77047 0.07417 0.07243

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.332
C2 0.000 1.322 0.364
C3 0.000 -1.322 0.364
O4 0.787 2.155 -0.405
O5 -0.787 -2.155 -0.405
H6 -0.646 1.912 1.015
H7 0.646 -1.912 1.015
H8 1.359 1.585 -0.954
H9 -1.359 -1.585 -0.954

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.32211.32212.40962.40962.13052.13052.45222.4522
C21.32212.64351.38033.64671.09033.36131.91173.4690
C31.32212.64353.64671.38033.36131.09033.46901.9117
O42.40961.38033.64674.58802.03164.31010.97674.3465
O52.40963.64671.38034.58804.31012.03164.34650.9767
H62.13051.09033.36132.03164.31014.03642.82904.0760
H72.13053.36131.09034.31012.03164.03644.07602.8290
H82.45221.91173.46900.97674.34652.82904.07604.1759
H92.45223.46901.91174.34650.97674.07602.82904.1759

picture of allenediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 126.151 C1 C2 H6 123.766
C1 C3 O5 126.151 C1 C3 H7 123.766
C2 C1 C3 177.216 C2 O4 H8 107.159
C3 O5 H9 107.159 O4 C2 H6 110.082
O5 C3 H7 110.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability