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All results from a given calculation for Be(OH)2 (Beryllium hydroxide)

using model chemistry: MP2/cc-pVTZ

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

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-166.256714
Energy at 298.15K 
HF Energy-165.719830
Nuclear repulsion energy48.758679
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/cc-pVTZ
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 4010 3807 56.67      
2 A1 743 705 9.60      
3 A1 598 568 143.36      
4 A1 301 286 15.94      
5 A2 214i 203i 0.00      
6 B1 341 324 64.16      
7 B2 4007 3805 171.90      
8 B2 1531 1454 340.48      
9 B2 493 468 285.89      

Unscaled Zero Point Vibrational Energy (zpe) 5905.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 5606.8 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/cc-pVTZ
ABC
17.03136 0.22698 0.22400

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.001
O2 0.000 1.433 0.080
O3 0.000 -1.433 0.080
H4 0.000 2.059 -0.639
H5 0.000 -2.059 -0.639

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43561.43562.15582.1558
O21.43562.86680.95283.5652
O31.43562.86683.56520.9528
H42.15580.95283.56524.1170
H52.15583.56520.95284.1170

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 127.859 Be1 O3 H5 127.859
O2 Be1 O3 173.717
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-166.257443
Energy at 298.15K-166.258966
HF Energy-165.720321
Nuclear repulsion energy48.738013
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/cc-pVTZ
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 3994 3792 33.12      
2 A 738 700 4.46      
3 A 597 567 85.78      
4 A 310 295 27.16      
5 A 224 213 108.76      
6 B 3992 3790 181.91      
7 B 1530 1453 332.90      
8 B 580 551 323.17      
9 B 308 292 78.91      

Unscaled Zero Point Vibrational Energy (zpe) 6135.9 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 5826.0 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 MP2/cc-pVTZ
ABC
15.68028 0.22570 0.22542

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.011
O2 0.000 1.436 -0.059
O3 0.000 -1.436 -0.059
H4 0.523 2.010 0.495
H5 -0.523 -2.010 0.495

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43711.43712.13762.1376
O21.43712.87270.95393.5295
O31.43712.87273.52950.9539
H42.13760.95393.52954.1538
H52.13763.52950.95394.1538

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 125.551 Be1 O3 H5 125.551
O2 Be1 O3 176.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability