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

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-164.991364
Energy at 298.15K 
HF Energy-164.743985
Nuclear repulsion energy48.803145
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 CID/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 3905 3638 26.74      
2 A1 829 773 24.78      
3 A1 489 455 297.89      
4 A1 264 246 5.72      
5 A2 155i 145i 0.00      
6 B1 308 287 151.76      
7 B2 3901 3634 152.81      
8 B2 1727 1609 306.45      
9 B2 313 292 370.40      

Unscaled Zero Point Vibrational Energy (zpe) 5790.4 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5394.3 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 CID/3-21G
ABC
25.26136 0.22674 0.22473

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/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 1.422 0.055
O3 0.000 -1.422 0.055
H4 0.000 2.185 -0.536
H5 0.000 -2.185 -0.536

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42241.42242.26172.2617
O21.42242.84490.96433.6553
O31.42242.84493.65530.9643
H42.26170.96433.65534.3696
H52.26173.65530.96434.3696

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 142.001 Be1 O3 H5 142.001
O2 Be1 O3 179.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-164.991539
Energy at 298.15K-164.992753
HF Energy-164.743850
Nuclear repulsion energy48.745835
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 CID/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 3887 3621 20.59      
2 A 825 769 19.40      
3 A 486 453 259.02      
4 A 256 238 6.89      
5 A 213 198 74.76      
6 B 3884 3618 140.55      
7 B 1721 1604 300.56      
8 B 417 388 448.18      
9 B 270 251 154.55      

Unscaled Zero Point Vibrational Energy (zpe) 5979.1 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5570.2 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 CID/3-21G
ABC
22.10955 0.22613 0.22501

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.056
O2 0.000 1.425 -0.048
O3 0.000 -1.425 -0.048
H4 0.333 2.152 0.493
H5 -0.333 -2.152 0.493

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42531.42532.24632.2463
O21.42532.85060.96573.6337
O31.42532.85063.63370.9657
H42.24630.96573.63374.3562
H52.24633.63370.96574.3562

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 139.136 Be1 O3 H5 139.136
O2 Be1 O3 179.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-164.989338
Energy at 298.15K 
HF Energy-164.744383
Nuclear repulsion energy49.254767
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 CID/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 4015 3741 0.00      
2 Σg 850 792 0.00      
3 Σu 4011 3736 341.72      
4 Σu 1784 1662 400.92      
5 Πg 251i 234i 0.00      
5 Πg 251i 234i 0.00      
6 Πu 294 274 32.41      
6 Πu 294 274 32.41      
7 Πu 314i 293i 564.96      
7 Πu 314i 293i 564.96      

Unscaled Zero Point Vibrational Energy (zpe) 5057.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 4711.8 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 CID/3-21G
B
0.22759

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/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 2.358
H5 0.000 0.000 -2.358

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40181.40182.35792.3579
O21.40182.80370.95613.7597
O31.40182.80373.75970.9561
H42.35790.95613.75974.7158
H52.35793.75970.95614.7158

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