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

using model chemistry: MP4=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 MP4=FULL/6-31G*
 hartrees
Energy at 0K-166.063997
Energy at 298.15K 
HF Energy-165.633736
Nuclear repulsion energy48.706517
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=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 3906 3756        
2 A1 741 713        
3 A1 572 550        
4 A1 281 270        
5 A2 247i 238i        
6 B1 342 329        
7 B2 3904 3754        
8 B2 1548 1488        
9 B2 427 411        

Unscaled Zero Point Vibrational Energy (zpe) 5736.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 5516.6 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=FULL/6-31G*
ABC
16.11443 0.22757 0.22440

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.012
O2 0.000 1.432 0.080
O3 0.000 -1.432 0.080
H4 0.000 2.047 -0.662
H5 0.000 -2.047 -0.662

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43391.43392.15522.1552
O21.43392.86470.96313.5575
O31.43392.86473.55750.9631
H42.15520.96313.55754.0940
H52.15523.55750.96314.0940

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 126.977 Be1 O3 H5 126.977
O2 Be1 O3 174.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-166.065201
Energy at 298.15K-166.066671
HF Energy-165.634493
Nuclear repulsion energy48.670381
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=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 3880 3731        
2 A 734 705        
3 A 577 555        
4 A 297 286        
5 A 245 235        
6 B 3879 3730        
7 B 1543 1484        
8 B 570 548        
9 B 292 281        

Unscaled Zero Point Vibrational Energy (zpe) 6008.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 5777.7 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=FULL/6-31G*
ABC
14.49992 0.22609 0.22604

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.022
O2 0.000 1.436 -0.056
O3 0.000 -1.436 -0.056
H4 0.572 1.984 0.494
H5 -0.572 -1.984 0.494

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43651.43652.12902.1290
O21.43652.87230.96483.5115
O31.43652.87233.51150.9648
H42.12900.96483.51154.1307
H52.12903.51150.96484.1307

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 123.699 Be1 O3 H5 123.699
O2 Be1 O3 177.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-166.059021
Energy at 298.15K 
HF Energy-165.629910
Nuclear repulsion energy49.448381
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=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 4118 3960        
2 Σg 798 768        
3 Σu 4114 3956        
4 Σu 1672 1607        
5 Πg 314i 302i        
5 Πg 314i 302i        
6 Πu 355 342        
6 Πu 355 342        
7 Πu 317i 305i        
7 Πu 317i 305i        

Unscaled Zero Point Vibrational Energy (zpe) 5075.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 4880.6 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=FULL/6-31G*
B
0.22916

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=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 1.397
O3 0.000 0.000 -1.397
H4 0.000 0.000 2.347
H5 0.000 0.000 -2.347

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39741.39742.34682.3468
O21.39742.79470.94943.7441
O31.39742.79473.74410.9494
H42.34680.94943.74414.6935
H52.34683.74410.94944.6935

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