15968-05-5

Usage

Uses

2,2'',6,6''-Tetrachlorobiphenyl is a polychlorinated biphenyl (PCB) congeners.

Upstream product

• 19230-28-5 1,3-dichloro-2-iodobenzene 
• 541-73-1 1,3-Dichlorobenzene 
• 25179-49-1 1,2-bis(3,5-dichlorophenyl)diazene 
• 87483-30-5 N,N′-bis-(3,5-dichlorophenyl)hydrazine 
• 618-62-2 3,5-dichloro-1-nitrobenzene 
• 608-31-1 2,6-Dichloroaniline 
• 46860-72-4 2,6,2',6'-tetrachloro-benzidine 

Downstream Products

• 2136-99-4 2,2',3,3',5,5',6,6'-octachlorobiphenyl 
• 38411-22-2 2,2',3,3',6,6'-hexachlorobiphenyl 
• 73575-54-9 2,2',3,6,6'-Pentachlorobiphenyl 
• 35065-29-3 2,2',3,3',5,6,6'-heptachlorobiphenyl 
• 56558-16-8 PCB 104 
• 92-52-4 biphenyl 

Relevant academic research and scientific papers

Asymmetric bromine-lithium exchange: On the importance of both the diamine ligand and the organolithium reagent

The asymmetric bromine-lithium exchange on a series of prochiral biphenyls was investigated. As in many asymmetric organolithium reactions, the chiral ligand (here a diamine) was considered to be the enantiocontrolling element. We show here that the organ

METHOD FOR SEPARATING AND CLEANING UP POLYHALOGENATED BIPHENYLS

The method for separating and cleaning up polyhalogenated biphenyls (PHBs) is characterized by comprising the following three steps: (1) the step of bringing a sample containing PHBs into contact with a fibrous activated carbon; (2) the step of washing the fibrous activated carbon with hexanes; and (3) the step of eluting PHBs from the fibrous activated carbon.

Physical, spectral and chromatographic properties of all 209 individual PCB congeners

Through the use of two capillary GC columns: 40% octadecyl/ 15% phenyl methyl siloxane and 50% phenyl methyl siloxane, it was possible to separate 201 PCB congeners with only four unresolved pairs. The data compiled in this study for all 209 congeners will aid in the identification of selected individual components of these environmental pollutants. The use of this data also presents the opportunity for the improved quantification of the commercial PCB formulations. -from Authors

Structural Studies of Some 2,6(2',6')-Halogen-Substituted Biphenyl Derivatives

Single-crystal X-ray structure determinations have been carried out at 295 K on a number of biphenylderivatives substituted with chlorine or bromine in the 2- and 6-positions in order to ascertain the effect of substitution on the torsion angle about the central bond. 2,2',6,6'-Tetrachlorobiphenyl, (1), is orthorhombic, P nca, a 12.35(1), b 10.521(7), c 9.390(8) Angstroem, Z 4; the structure was refined to a residual of R 0.040 for No 528 independent 'observed' reflections.The interplanar dihedral angle, θ, is 81.7 deg. 4'-Bromo-2,4,6-trichlorobiphenyl, (2), is monoclinic, C2/c, a 19.27(1), b 7.940(2), c 33.315(8) Angstroem, β 90.93(6) deg, Z 16; R 0.036 for No 1795 with θ 84.3 and 80.6 deg for the two independent molecules. 2,2',4,4',6,6'-Hexabromobiphenyl, (3), is orthorhombic, P nca, a 14.48(1), b 12.71(1), c 8.534(7) Angstroem; R 0.044 for No 693 with θ 83.0 deg. 2,4,4',6-Tetrabromobiphenyl, (4), is triclinic, P1, with a 8.14(1), b 10.74(2), c 35.42(4) Angstroem, α 87.87(10), β 79.39(10) deg, Z 8; R 0.049 for No 3962, with θ 89.8, 80.7, 86.9, 83.6 deg, for the four independent molecules.Steric interactions between the substituents ortho to the central inter-ring bond are not the sole determinant of the geometry of these compounds in the solid state.The pairs (1) and (3), and (2) and (4), are pseudoisostructural in each case.