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All results from a given calculation for BH4 (borohydride)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 2B2
1 2 yes D2D 2B2

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-26.786738
Energy at 298.15K 
HF Energy-26.786738
Nuclear repulsion energy10.429656
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 mPW1PW91/STO-3G
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 3067 2695 4.66      
2 A1 2484 2183 14.57      
3 A1 1489 1309 21.43      
4 A1 1242 1092 0.03      
5 A2 405i 356i 0.00      
6 B1 3201 2814 7.25      
7 B1 1233 1083 0.01      
8 B2 2151 1890 184.33      
9 B2 821 722 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 7641.9 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 6716.4 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 mPW1PW91/STO-3G
ABC
5.48560 4.44970 3.46388

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.107
H2 0.000 0.703 -0.940
H3 0.000 -0.703 -0.940
H4 -1.015 0.000 0.673
H5 1.015 0.000 0.673

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.26081.26081.16221.1622
H21.26081.40692.03112.0311
H31.26081.40692.03112.0311
H41.16222.03112.03112.0295
H51.16222.03112.03112.0295

picture of borohydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 67.830 H2 B1 H4 113.859
H2 B1 H5 113.859 H3 B1 H4 113.859
H3 B1 H5 113.859 H4 B1 H5 121.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.103      
2 H 0.091      
3 H 0.091      
4 H -0.039      
5 H -0.039      


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 -1.420 1.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.207 0.000 0.000
y 0.000 -7.533 0.000
z 0.000 0.000 -7.985
Traceless
 xyz
x -1.449 0.000 0.000
y 0.000 1.063 0.000
z 0.000 0.000 0.385
Polar
3z2-r20.771
x2-y2-1.674
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.899 0.000 0.000
y 0.000 1.285 0.000
z 0.000 0.000 1.253


<r2> (average value of r2) Å2
<r2> 10.926
(<r2>)1/2 3.305

Conformer 2 (D2D)

Jump to S1C1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-26.790287
Energy at 298.15K-26.792721
HF Energy-26.790287
Nuclear repulsion energy10.491988
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 mPW1PW91/STO-3G
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 2689 2363 0.00      
2 A1 1339 1177 0.00      
3 B1 1445 1270 0.00      
4 B2 2669 2346 63.77      
5 B2 1090 958 14.46      
6 E 2823 2481 98.08      
6 E 2823 2481 98.08      
7 E 499 438 275.56      
7 E 499 438 275.56      

Unscaled Zero Point Vibrational Energy (zpe) 7937.5 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 6976.2 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 mPW1PW91/STO-3G
ABC
5.11714 5.11714 3.40047

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
H2 0.000 1.109 0.450
H3 0.000 -1.109 0.450
H4 -1.109 0.000 -0.450
H5 1.109 0.000 -0.450

Atom - Atom Distances (Å)
  B1 H2 H3 H4 H5
B11.19671.19671.19671.1967
H21.19672.21791.80801.8080
H31.19672.21791.80801.8080
H41.19671.80801.80802.2179
H51.19671.80801.80802.2179

picture of borohydride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 H3 135.843 H2 B1 H4 98.122
H2 B1 H5 98.122 H3 B1 H4 98.122
H3 B1 H5 98.122 H4 B1 H5 135.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.146      
2 H 0.036      
3 H 0.036      
4 H 0.036      
5 H 0.036      


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 -8.233 0.000 0.000
y 0.000 -8.233 0.000
z 0.000 0.000 -7.878
Traceless
 xyz
x -0.177 0.000 0.000
y 0.000 -0.177 0.000
z 0.000 0.000 0.355
Polar
3z2-r20.709
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 1.743 0.000 0.000
y 0.000 1.743 0.000
z 0.000 0.000 0.998


<r2> (average value of r2) Å2
<r2> 10.797
(<r2>)1/2 3.286