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

using model chemistry: CISD/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 CISD/cc-pVTZ
 hartrees
Energy at 0K-166.211791
Energy at 298.15K 
HF Energy-165.720888
Nuclear repulsion energy49.166499
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 CISD/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 4152 3861 65.14      
2 A1 765 711 8.82      
3 A1 594 552 177.50      
4 A1 306 284 15.80      
5 A2 201i 187i 0.00      
6 B1 353 328 89.81      
7 B2 4149 3857 169.37      
8 B2 1575 1465 393.31      
9 B2 483 449 289.35      

Unscaled Zero Point Vibrational Energy (zpe) 6087.5 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 5660.2 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 CISD/cc-pVTZ
ABC
18.56085 0.23020 0.22738

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.012
O2 0.000 1.422 0.074
O3 0.000 -1.422 0.074
H4 0.000 2.063 -0.617
H5 0.000 -2.063 -0.617

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42301.42302.15692.1569
O21.42302.84320.94283.5526
O31.42302.84323.55260.9428
H42.15690.94283.55264.1264
H52.15693.55260.94284.1264

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 130.380 Be1 O3 H5 130.380
O2 Be1 O3 174.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CISD/cc-pVTZ
 hartrees
Energy at 0K-166.212436
Energy at 298.15K-166.213959
HF Energy-165.721415
Nuclear repulsion energy49.150793
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 CISD/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 4139 3848 35.72      
2 A 761 707 3.58      
3 A 587 546 105.48      
4 A 319 297 42.27      
5 A 211 196 117.68      
6 B 4135 3845 186.13      
7 B 1575 1464 386.53      
8 B 572 532 350.40      
9 B 315 293 90.25      

Unscaled Zero Point Vibrational Energy (zpe) 6306.8 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 5864.1 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 CISD/cc-pVTZ
ABC
17.14352 0.22896 0.22886

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.018
O2 0.000 1.424 -0.054
O3 0.000 -1.424 -0.054
H4 0.516 2.021 0.464
H5 -0.516 -2.021 0.464

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42431.42432.14082.1408
O21.42432.84780.94373.5217
O31.42432.84783.52170.9437
H42.14080.94373.52174.1720
H52.14083.52170.94374.1720

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 128.237 Be1 O3 H5 128.237
O2 Be1 O3 177.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability