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 Be(OH)2 (Beryllium hydroxide)

using model chemistry: MP3=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
1 2 yes C2 1A
1 3 no D*H 1Σg

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-165.868940
Energy at 298.15K 
HF Energy-165.602581
Nuclear repulsion energy49.204560
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 MP3=FULL/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 A1 4109 4109 6.82      
2 A1 786 786 3.28      
3 A1 397 397 109.52      
4 A1 178 178 515.67      
5 A2 82i 82i 0.00      
6 B1 392 392 63.71      
7 B2 4109 4109 317.98      
8 B2 1668 1668 460.21      
9 B2 120 120 58.04      

Unscaled Zero Point Vibrational Energy (zpe) 5838.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5838.0 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 MP3=FULL/6-31G
ABC
218.10974 0.22677 0.22654

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.005
O2 0.000 1.407 0.023
O3 0.000 -1.407 0.023
H4 0.000 2.334 -0.176
H5 0.000 -2.334 -0.176

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40761.40762.34062.3406
O21.40762.81460.94823.7469
O31.40762.81463.74690.9482
H42.34060.94823.74694.6686
H52.34063.74690.94824.6686

picture of Beryllium hydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 166.711 Be1 O3 H5 166.711
O2 Be1 O3 177.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-165.868953
Energy at 298.15K-165.869586
HF Energy-165.602455
Nuclear repulsion energy49.176811
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 MP3=FULL/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 4105 4105 3.96      
2 A 784 784 1.86      
3 A 393 393 93.26      
4 A 179 179 250.27      
5 A 88 88 295.80      
6 B 4104 4104 313.64      
7 B 1666 1666 456.75      
8 B 392 392 90.01      
9 B 169 169 374.42      

Unscaled Zero Point Vibrational Energy (zpe) 5939.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5939.9 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 MP3=FULL/6-31G
ABC
154.79026 0.22652 0.22646

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.003
O2 0.000 1.409 -0.018
O3 0.000 -1.409 -0.018
H4 0.191 2.325 0.136
H5 -0.191 -2.325 0.136

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40871.40872.33652.3365
O21.40872.81710.94863.7415
O31.40872.81713.74150.9486
H42.33650.94863.74154.6654
H52.33653.74150.94864.6654

picture of Beryllium hydroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 164.443 Be1 O3 H5 164.443
O2 Be1 O3 178.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-165.868891
Energy at 298.15K 
HF Energy-165.603002
Nuclear repulsion energy49.273330
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 MP3=FULL/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 Σg 4122 4122 0.00      
2 Σg 788 788 0.00      
3 Σu 4121 4121 346.98      
4 Σu 1674 1674 476.58      
5 Πg 125i 125i 0.00      
5 Πg 125i 125i 0.00      
6 Πu 393 393 57.85      
6 Πu 393 393 57.85      
7 Πu 135i 135i 610.85      
7 Πu 135i 135i 610.85      

Unscaled Zero Point Vibrational Energy (zpe) 5487.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5487.0 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 MP3=FULL/6-31G
B
0.22701

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
O2 0.000 0.000 1.405
O3 0.000 0.000 -1.405
H4 0.000 0.000 2.352
H5 0.000 0.000 -2.352

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40461.40462.35182.3518
O21.40462.80910.94733.7564
O31.40462.80913.75640.9473
H42.35180.94733.75644.7036
H52.35183.75640.94734.7036

picture of Beryllium hydroxide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 180.000 Be1 O3 H5 180.000
O2 Be1 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability