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

using model chemistry: CCSD/6-31G(2df,p)

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 CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-166.174762
Energy at 298.15K 
HF Energy-165.666347
Nuclear repulsion energy49.102348
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 CCSD/6-31G(2df,p)
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 4065 3843 58.12      
2 A1 758 717 10.19      
3 A1 595 562 149.36      
4 A1 293 277 11.39      
5 A2 233i 221i 0.00      
6 B1 342 323 66.43      
7 B2 4062 3841 151.29      
8 B2 1571 1485 329.19      
9 B2 478 452 302.33      

Unscaled Zero Point Vibrational Energy (zpe) 5964.8 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 5639.7 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 CCSD/6-31G(2df,p)
ABC
17.12363 0.23051 0.22745

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.007
O2 0.000 1.422 0.078
O3 0.000 -1.422 0.078
H4 0.000 2.043 -0.640
H5 0.000 -2.043 -0.640

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42411.42412.14302.1430
O21.42412.84470.94933.5390
O31.42412.84473.53900.9493
H42.14300.94933.53904.0859
H52.14303.53900.94934.0859

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 127.960 Be1 O3 H5 127.960
O2 Be1 O3 174.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-166.175806
Energy at 298.15K-166.177324
HF Energy-165.667061
Nuclear repulsion energy49.077329
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 CCSD/6-31G(2df,p)
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 4047 3826 28.48      
2 A 752 711 3.34      
3 A 591 559 73.40      
4 A 310 293 48.20      
5 A 228 215 121.56      
6 B 4045 3825 166.74      
7 B 1570 1484 321.74      
8 B 586 554 345.96      
9 B 302 286 80.10      

Unscaled Zero Point Vibrational Energy (zpe) 6215.0 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 5876.3 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 CCSD/6-31G(2df,p)
ABC
15.76931 0.22917 0.22890

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.014
O2 0.000 1.425 -0.053
O3 0.000 -1.425 -0.053
H4 0.568 1.993 0.455
H5 -0.568 -1.993 0.455

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42591.42592.12492.1249
O21.42592.85060.95053.5025
O31.42592.85063.50250.9505
H42.12490.95053.50254.1453
H52.12493.50250.95054.1453

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 125.621 Be1 O3 H5 125.621
O2 Be1 O3 176.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability