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 B2Cl4 (Diboron tetrachloride)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2 1A1
1 2 no C1 1A

Conformer 1 (D2)

Jump to S1C2
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-1888.280584
Energy at 298.15K-1888.280149
HF Energy-1887.566627
Nuclear repulsion energy424.398641
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 MP2/6-311G*
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 1171 1113 0.00      
2 A1 420 399 0.00      
3 A1 179 170 0.00      
4 B1 25 23 0.00      
5 B2 762 724 163.84      
6 B2 306 291 4.46      
7 E 970 921 368.46      
7 E 970 921 368.46      
8 E 510 485 7.58      
8 E 510 485 7.58      
9 E 98 93 1.22      
9 E 98 93 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 3009.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 2860.0 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 MP2/6-311G*
ABC
0.05300 0.02871 0.02871

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.775
B2 0.000 0.000 -0.775
Cl3 0.000 1.492 1.642
Cl4 0.000 -1.492 1.642
Cl5 1.492 0.000 -1.642
Cl6 -1.492 0.000 -1.642

Atom - Atom Distances (Å)
  B1 B2 Cl3 Cl4 Cl5 Cl6
B11.55021.72571.72572.84042.8404
B21.55022.84042.84041.72571.7257
Cl31.72572.84042.98473.90313.9031
Cl41.72572.84042.98473.90313.9031
Cl52.84041.72573.90313.90312.9847
Cl62.84041.72573.90313.90312.9847

picture of Diboron tetrachloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 Cl5 120.142 B1 B2 Cl6 120.142
B2 B1 Cl3 120.142 B2 B1 Cl4 120.142
Cl3 B1 Cl4 119.717 Cl5 B2 Cl6 119.717
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-1888.277166
Energy at 298.15K 
HF Energy-1887.562077
Nuclear repulsion energy427.040835
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 MP2/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1133 1077 0.00      
2 Ag 418 398 0.00      
3 Ag 199 189 0.00      
4 Au 27i 26i 0.00      
5 B1u 765 727 167.19      
6 B1u 312 296 3.88      
7 B2g 572 543 0.00      
8 B2u 985 936 695.45      
9 B2u 123 117 0.33      
10 B3g 1004 954 0.00      
11 B3g 264 251 0.00      
12 B3u 267 254 6.79      

Unscaled Zero Point Vibrational Energy (zpe) 3007.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 2858.0 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 MP2/6-311G*
ABC
0.05363 0.03811 0.02228

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.774
B2 0.000 0.000 -0.774
Cl3 0.000 1.472 1.667
Cl4 0.000 -1.472 1.667
Cl5 0.000 1.472 -1.667
Cl6 0.000 -1.472 -1.667

Atom - Atom Distances (Å)
  B1 B2 Cl3 Cl4 Cl5 Cl6
B11.54831.72181.72182.85072.8507
B21.54832.85072.85071.72181.7218
Cl31.72182.85072.94453.33384.4479
Cl41.72182.85072.94454.44793.3338
Cl52.85071.72183.33384.44792.9445
Cl62.85071.72184.44793.33382.9445

picture of Diboron tetrachloride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 Cl5 121.231 B1 B2 Cl6 121.231
B2 B1 Cl3 121.231 B2 B1 Cl4 121.231
Cl3 B1 Cl4 117.538 Cl5 B2 Cl6 117.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability