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

using model chemistry: MP4/6-311G**

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 MP4/6-311G**
 hartrees
Energy at 0K-166.170652
Energy at 298.15K 
HF Energy-165.697550
Nuclear repulsion energy48.818153
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 MP4/6-311G**
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 4002 3881        
2 A1 746 723        
3 A1 665 644        
4 A1 333 323        
5 A2 234i 227i        
6 B1 380 368        
7 B2 4000 3879        
8 B2 1534 1488        
9 B2 528 512        

Unscaled Zero Point Vibrational Energy (zpe) 5976.9 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 5795.8 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 MP4/6-311G**
ABC
14.52312 0.22855 0.22501

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.027
O2 0.000 1.435 0.081
O3 0.000 -1.435 0.081
H4 0.000 1.982 -0.701
H5 0.000 -1.982 -0.701

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43561.43562.11152.1115
O21.43562.86930.95463.5048
O31.43562.86933.50480.9546
H42.11150.95463.50483.9634
H52.11153.50480.95463.9634

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 122.833 Be1 O3 H5 122.833
O2 Be1 O3 175.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-166.171626
Energy at 298.15K-166.173316
HF Energy-165.697969
Nuclear repulsion energy48.806622
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 MP4/6-311G**
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 3984 3863        
2 A 738 716        
3 A 657 637        
4 A 340 330        
5 A 256 248        
6 B 3982 3861        
7 B 1533 1487        
8 B 626 607        
9 B 336 326        

Unscaled Zero Point Vibrational Energy (zpe) 6225.4 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 6036.8 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 MP4/6-311G**
ABC
13.60134 0.22729 0.22669

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.035
O2 0.000 1.437 -0.060
O3 0.000 -1.437 -0.060
H4 0.537 1.934 0.554
H5 -0.537 -1.934 0.554

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43711.43712.09192.0919
O21.43712.87380.95583.4682
O31.43712.87383.46820.9558
H42.09190.95583.46824.0141
H52.09193.46820.95584.0141

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 120.574 Be1 O3 H5 120.574
O2 Be1 O3 178.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability