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 BeOH (beryllium monohydroxide)

using model chemistry: TPSSh/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
1 2 no C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-90.608740
Energy at 298.15K-90.608559
HF Energy-90.608740
Nuclear repulsion energy17.448748
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 TPSSh/aug-cc-pVTZ
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' 3961 3823 117.61 118.99 0.18 0.31
2 A' 1257 1213 115.19 5.54 0.54 0.70
3 A' 355 343 161.21 4.78 0.72 0.83

Unscaled Zero Point Vibrational Energy (zpe) 2786.6 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 2689.6 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 TPSSh/aug-cc-pVTZ
ABC
50.33283 1.30950 1.27629

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.048 -0.377 0.000
Be2 0.048 1.028 0.000
H3 -0.577 -1.097 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.40450.9542
Be21.40452.2152
H30.95422.2152

picture of beryllium monohydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be2 O1 H3 139.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.305      
2 Be 0.193      
3 H 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.995 -0.606 0.000 1.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.540 0.048 0.000
y 0.048 4.660 0.000
z 0.000 0.000 5.321


<r2> (average value of r2) Å2
<r2> 14.359
(<r2>)1/2 3.789

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-90.607951
Energy at 298.15K 
HF Energy-90.607951
Nuclear repulsion energy17.626524
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 TPSSh/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 4049 3908 177.49      
2 Σ 1310 1265 155.23      
3 Π 246i 237i 135.31      
3 Π 246i 237i 135.30      

Unscaled Zero Point Vibrational Energy (zpe) 2433.7 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 2349.0 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 TPSSh/aug-cc-pVTZ
B
1.29335

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.352
Be2 0.000 0.000 -1.030
H3 0.000 0.000 1.301

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38190.9483
Be21.38192.3302
H30.94832.3302

picture of beryllium monohydroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be2 O1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.322      
2 Be 0.163      
3 H 0.159      


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 1.244 1.244
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.355 0.000 -0.000
y 0.000 5.355 -0.000
z -0.000 -0.000 4.744


<r2> (average value of r2) Å2
<r2> 14.292
(<r2>)1/2 3.781