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All results from a given calculation for B2H6 (Diborane)

using model chemistry: CCSD(T)/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCSD(T)/Def2TZVPP
 hartrees
Energy at 0K-53.144520
Energy at 298.15K-53.150447
HF Energy-52.836121
Nuclear repulsion energy32.116482
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(T)/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2631 2631        
2 Ag 2190 2190        
3 Ag 1213 1213        
4 Ag 816 816        
5 Au 858 858        
6 B1g 2707 2707        
7 B1g 945 945        
8 B1u 2014 2014        
9 B1u 998 998        
10 B2g 1898 1898        
11 B2g 900 900        
12 B2u 2721 2721        
13 B2u 985 985        
14 B2u 374 374        
15 B3g 1067 1067        
16 B3u 2615 2615        
17 B3u 1757 1757        
18 B3u 1202 1202        

Unscaled Zero Point Vibrational Energy (zpe) 13945.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13945.1 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(T)/Def2TZVPP
ABC
2.68284 0.61185 0.56191

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.881 0.000 0.000
B2 -0.881 0.000 0.000
H3 0.000 0.000 0.975
H4 0.000 0.000 -0.975
H5 1.455 1.041 0.000
H6 1.455 -1.041 0.000
H7 -1.455 1.041 0.000
H8 -1.455 -1.041 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.76241.31441.31441.18851.18852.55772.5577
B21.76241.31441.31442.55772.55771.18851.1885
H31.31441.31441.95062.03762.03762.03762.0376
H41.31441.31441.95062.03762.03762.03762.0376
H51.18852.55772.03762.03762.08142.91043.5781
H61.18852.55772.03762.03762.08143.57812.9104
H72.55771.18852.03762.03762.91043.57812.0814
H82.55771.18852.03762.03763.57812.91042.0814

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 84.196 B1 H4 B2 84.196
H3 B1 H4 95.804 H3 B1 H5 108.891
H3 B1 H6 108.891 H3 B2 H4 95.804
H3 B2 H7 108.891 H3 B2 H8 108.891
H4 B1 H5 108.891 H4 B1 H6 108.891
H4 B2 H7 108.891 H4 B2 H8 108.891
H5 B1 H6 122.243 H7 B2 H8 122.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability