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

using model chemistry: CISD/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 CISD/6-311G*
 hartrees
Energy at 0K-166.090632
Energy at 298.15K 
HF Energy-165.684623
Nuclear repulsion energy49.206747
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 CISD/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 4130 3821 46.82      
2 A1 771 714 10.29      
3 A1 593 549 211.39      
4 A1 328 304 4.72      
5 A2 227i 210i 0.00      
6 B1 395 365 118.44      
7 B2 4126 3818 133.18      
8 B2 1585 1466 381.16      
9 B2 461 427 356.21      

Unscaled Zero Point Vibrational Energy (zpe) 6080.8 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 5626.6 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 CISD/6-311G*
ABC
18.46473 0.23075 0.22790

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.034
O2 0.000 1.420 0.070
O3 0.000 -1.420 0.070
H4 0.000 2.061 -0.624
H5 0.000 -2.061 -0.624

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42041.42042.16312.1631
O21.42042.83980.94443.5490
O31.42042.83983.54900.9444
H42.16310.94443.54904.1212
H52.16313.54900.94444.1212

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 131.273 Be1 O3 H5 131.273
O2 Be1 O3 177.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-166.091466
Energy at 298.15K-166.093076
HF Energy-165.685270
Nuclear repulsion energy49.194499
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 CISD/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 4116 3808 25.37      
2 A 767 710 4.44      
3 A 587 543 127.96      
4 A 349 323 49.53      
5 A 239 221 152.97      
6 B 4112 3805 144.26      
7 B 1586 1467 377.32      
8 B 574 531 406.81      
9 B 336 310 122.76      

Unscaled Zero Point Vibrational Energy (zpe) 6332.6 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 5859.5 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 CISD/6-311G*
ABC
17.26325 0.22955 0.22945

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/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 1.422 -0.049
O3 0.000 -1.422 -0.049
H4 0.514 2.025 0.465
H5 -0.514 -2.025 0.465

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42161.42162.14822.1482
O21.42162.84300.94533.5224
O31.42162.84303.52240.9453
H42.14820.94533.52244.1782
H52.14823.52240.94534.1782

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 129.247 Be1 O3 H5 129.247
O2 Be1 O3 178.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability