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: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-264.540085
Energy at 298.15K-264.544297
HF Energy-264.088970
Nuclear repulsion energy150.989323
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 CID/3-21G
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 3679 3427 10.52      
2 A 3277 3053 7.43      
3 A 1555 1448 20.39      
4 A 1378 1284 0.75      
5 A 1280 1192 20.83      
6 A 1031 960 22.72      
7 A 947 882 95.61      
8 A 564 526 72.96      
9 A 495 461 119.37      
10 A 355 330 26.81      
11 A 124 115 0.07      
12 B 3676 3425 17.78      
13 B 3277 3053 15.71      
14 B 2145 1998 218.77      
15 B 1466 1365 69.18      
16 B 1361 1268 14.01      
17 B 1073 999 440.83      
18 B 945 881 6.21      
19 B 654 609 62.65      
20 B 474 442 174.40      
21 B 160 149 1.95      

Unscaled Zero Point Vibrational Energy (zpe) 14956.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 13933.8 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 CID/3-21G
ABC
0.74077 0.07451 0.07246

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.373
C2 0.000 1.305 0.369
C3 0.000 -1.305 0.369
O4 0.789 2.152 -0.420
O5 -0.789 -2.152 -0.420
H6 -0.638 1.899 1.008
H7 0.638 -1.899 1.008
H8 1.390 1.618 -0.985
H9 -1.390 -1.618 -0.985

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.30531.30532.42562.42562.10112.10112.52892.5289
C21.30532.61051.40093.63301.08033.32871.96533.5089
C31.30532.61053.63301.40093.32871.08033.50891.9653
O42.42561.40093.63304.58472.03444.29760.98224.3915
O52.42563.63301.40094.58474.29762.03444.39150.9822
H62.10111.08033.32872.03444.29764.00612.85664.1116
H72.10113.32871.08034.29762.03444.00614.11162.8566
H82.52891.96533.50890.98224.39152.85664.11164.2664
H92.52893.50891.96534.39150.98224.11162.85664.2664

picture of allenediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 127.328 C1 C2 H6 123.189
C1 C3 O5 127.328 C1 C3 H7 123.189
C2 C1 C3 179.622 C2 O4 H8 109.871
C3 O5 H9 109.871 O4 C2 H6 109.482
O5 C3 H7 109.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability