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

using model chemistry: MP3=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-165.006087
Energy at 298.15K 
HF Energy-164.743794
Nuclear repulsion energy48.767442
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/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 A1 3871 3871 23.60      
2 A1 828 828 25.45      
3 A1 491 491 281.91      
4 A1 263 263 5.09      
5 A2 170i 170i 0.00      
6 B1 306 306 143.97      
7 B2 3870 3870 136.24      
8 B2 1723 1723 302.98      
9 B2 311 311 380.17      

Unscaled Zero Point Vibrational Energy (zpe) 5746.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5746.2 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 MP3=FULL/3-21G*
ABC
24.35269 0.22665 0.22456

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.049
O2 0.000 1.423 0.056
O3 0.000 -1.423 0.056
H4 0.000 2.180 -0.546
H5 0.000 -2.180 -0.546

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42331.42332.25922.2592
O21.42332.84650.96643.6527
O31.42332.84653.65270.9664
H42.25920.96643.65274.3591
H52.25923.65270.96644.3591

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 141.209 Be1 O3 H5 141.209
O2 Be1 O3 179.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-165.006303
Energy at 298.15K-165.007540
HF Energy-164.743597
Nuclear repulsion energy48.694173
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/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 3848 3848 17.73      
2 A 823 823 19.95      
3 A 491 491 239.77      
4 A 258 258 9.46      
5 A 225 225 74.96      
6 B 3847 3847 122.04      
7 B 1716 1716 295.75      
8 B 426 426 455.34      
9 B 268 268 152.94      

Unscaled Zero Point Vibrational Energy (zpe) 5950.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5950.8 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 MP3=FULL/3-21G*
ABC
20.92927 0.22593 0.22481

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.059
O2 0.000 1.427 -0.048
O3 0.000 -1.427 -0.048
H4 0.351 2.142 0.503
H5 -0.351 -2.142 0.503

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42681.42682.24162.2416
O21.42682.85360.96823.6277
O31.42682.85363.62770.9682
H42.24160.96823.62774.3403
H52.24163.62770.96824.3403

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 137.945 Be1 O3 H5 137.945
O2 Be1 O3 179.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-165.003921
Energy at 298.15K 
HF Energy-164.744284
Nuclear repulsion energy49.238772
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/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 Σg 3987 3987 0.00      
2 Σg 849 849 0.00      
3 Σu 3986 3986 323.82      
4 Σu 1782 1782 401.43      
5 Πg 254i 254i 0.00      
5 Πg 254i 254i 0.00      
6 Πu 294 294 29.27      
6 Πu 294 294 29.27      
7 Πu 318i 318i 555.42      
7 Πu 318i 318i 555.42      

Unscaled Zero Point Vibrational Energy (zpe) 5024.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5024.1 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 MP3=FULL/3-21G*
B
0.22756

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

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 1.402
O3 0.000 0.000 -1.402
H4 0.000 0.000 2.359
H5 0.000 0.000 -2.359

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40181.40182.35952.3595
O21.40182.80350.95773.7613
O31.40182.80353.76130.9577
H42.35950.95773.76134.7190
H52.35953.76130.95774.7190

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