Either of twelve isomers of the polychlorinated biphenyl containing two chlorine atoms

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  • PCB Congener List — A complete list of polychlorinated biphenyl (PCB) congeners. Chemical structure of PCBs. The possible positions of chlorine atoms on the benzene rings are denoted by numbers assigned to the carbon atoms. Contents …   Wikipedia

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  • Di-tungsten tetra(hpp) — or W2(hpp)4 is a di tungsten paddlewheel compound with four hpp or hexahydropyrimidopyrimidine ligands. This compound has the lowest ionization energy (3.51 eV) of all stable chemical elements or chemical compounds measured to date. [cite journal …   Wikipedia

  • Ditungsten tetra(hpp) — Properties Molecular formula C28H48N12W2 Molar mass 920.44 g mol−1 …   Wikipedia

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