return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/3-21G

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 B1B95/3-21G
 hartrees
Energy at 0K-165.531834
Energy at 298.15K 
HF Energy-165.531834
Nuclear repulsion energy48.942956
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 B1B95/3-21G
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 3874 3706 28.94      
2 A1 819 784 14.88      
3 A1 428 409 262.25      
4 A1 247 236 26.83      
5 A2 114i 109i 0.00      
6 B1 313 299 126.93      
7 B2 3872 3704 189.91      
8 B2 1718 1643 281.56      
9 B2 264 252 315.87      

Unscaled Zero Point Vibrational Energy (zpe) 5709.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5462.2 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 B1B95/3-21G
ABC
27.22926 0.22811 0.22621

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.050
O2 0.000 1.416 0.052
O3 0.000 -1.416 0.052
H4 0.000 2.196 -0.516
H5 0.000 -2.196 -0.516

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41641.41642.26822.2682
O21.41642.83280.96493.6572
O31.41642.83283.65720.9649
H42.26820.96493.65724.3927
H52.26823.65720.96494.3927

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 143.863 Be1 O3 H5 143.863
O2 Be1 O3 179.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.575      
2 O -0.672      
3 O -0.672      
4 H 0.385      
5 H 0.385      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.301 2.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.352 0.000 0.000
y 0.000 -10.673 0.000
z 0.000 0.000 -14.880
Traceless
 xyz
x -3.576 0.000 0.000
y 0.000 4.943 0.000
z 0.000 0.000 -1.367
Polar
3z2-r2-2.735
x2-y2-5.679
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.298 0.000 0.000
y 0.000 3.707 0.000
z 0.000 0.000 1.527


<r2> (average value of r2) Å2
<r2> 51.058
(<r2>)1/2 7.145

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-165.531899
Energy at 298.15K-165.532895
HF Energy-165.531899
Nuclear repulsion energy48.899230
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 B1B95/3-21G
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 3859 3692 24.64      
2 A 815 780 12.84      
3 A 428 409 247.38      
4 A 242 232 24.98      
5 A 159 152 36.33      
6 B 3858 3691 178.68      
7 B 1712 1638 277.37      
8 B 356 341 317.79      
9 B 266 254 183.03      

Unscaled Zero Point Vibrational Energy (zpe) 5847.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5594.3 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 B1B95/3-21G
ABC
24.57186 0.22768 0.22637

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.054
O2 0.000 1.418 -0.048
O3 0.000 -1.418 -0.048
H4 0.270 2.174 0.490
H5 -0.270 -2.174 0.490

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41851.41852.25732.2573
O21.41852.83690.96603.6428
O31.41852.83693.64280.9660
H42.25730.96603.64284.3820
H52.25733.64280.96604.3820

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 141.685 Be1 O3 H5 141.685
O2 Be1 O3 179.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.572      
2 O -0.670      
3 O -0.670      
4 H 0.384      
5 H 0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.144 2.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.973 2.760 0.000
y 2.760 -11.227 0.000
z 0.000 0.000 -15.040
Traceless
 xyz
x -2.839 2.760 0.000
y 2.760 4.279 0.000
z 0.000 0.000 -1.440
Polar
3z2-r2-2.880
x2-y2-4.746
xy2.760
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.362 0.149 0.000
y 0.149 3.696 0.000
z 0.000 0.000 1.519


<r2> (average value of r2) Å2
<r2> 51.115
(<r2>)1/2 7.149

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-165.530604
Energy at 298.15K 
HF Energy-165.530604
Nuclear repulsion energy49.294431
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 B1B95/3-21G
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 3975 3803 0.00      
2 Σg 841 805 0.00      
3 Σu 3972 3800 374.41      
4 Σu 1774 1697 352.19      
5 Πg 169i 161i 0.00      
5 Πg 169i 161i 0.00      
6 Πu 307 294 47.29      
6 Πu 307 294 47.29      
7 Πu 238i 228i 489.87      
7 Πu 238i 228i 489.87      

Unscaled Zero Point Vibrational Energy (zpe) 5181.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 4956.9 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 B1B95/3-21G
B
0.22813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

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 1.400
O3 0.000 0.000 -1.400
H4 0.000 0.000 2.357
H5 0.000 0.000 -2.357

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40001.40002.35722.3572
O21.40002.79990.95723.7571
O31.40002.79993.75710.9572
H42.35720.95723.75714.7144
H52.35723.75710.95724.7144

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
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.602      
2 O -0.694      
3 O -0.694      
4 H 0.393      
5 H 0.393      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.222 0.000 0.000
y 0.000 -16.222 0.000
z 0.000 0.000 -6.201
Traceless
 xyz
x -5.010 0.000 0.000
y 0.000 -5.010 0.000
z 0.000 0.000 10.021
Polar
3z2-r220.042
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.203 0.000 0.000
y 0.000 1.203 0.000
z 0.000 0.000 3.772


<r2> (average value of r2) Å2
<r2> 50.516
(<r2>)1/2 7.107