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An Examination of the Role of Rotational Barriers in the Toxicology of Pcb’s

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Abstract

The internal rotational barriers of PCB isomers were computed using the quantum mechanical INDO method and corrected for the known deficiencies of this semi—empirical model. Based on the hypothesis that the active molecule must be planar, a correlation coefficient (r2) equal to 0.98 was found between the arylhydrocarbon hydroxylase activation data and the fraction of planar conformers predicted from a Boltzmann like distribution.

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References

  • Allinger, N.L and Sprague, J.T. 1973. Calculation of the structures of hydrocarbons containing delocalized electronic systems by the molecular mechanics method. J. Am. Chem. Soc. 95: 3893–3907

    Article  CAS  Google Scholar 

  • Almlöf, J. 1974. Ab initio calculations on the equilibrium geometry and rotation barriers in biphenyl. Chem. Phys. 6: 135–139

    Article  Google Scholar 

  • Bartell, L.S. 1960. The effects of intramolecular van der Waals forces. J. Chem. Phys. 32: 827–831

    Article  CAS  Google Scholar 

  • Birner, P. and Hofmann, H.J. 1982. Quantum chemical calculations for the determination of the molecular structure of conjugated compounds. Part XVII. Int. J. Quantum Chem. 21: 833–843

    Article  CAS  Google Scholar 

  • Born, M. and Oppenheimer, J.R. 1927. Quantum theory of the molecules. Ann. Physik. 84: 457–484

    Article  CAS  Google Scholar 

  • Bott, G., Field, L.D. and Sternhell, S. 1980. Steric effects. A study of a rationally designed system. J. Am. Chem. Soc. 102: 5618–5626

    Article  CAS  Google Scholar 

  • Casalone, G.L., Mariani, C., Mugnoli, A. and Simonetta, M. 1968. Molecular structure of biphenyl in the gas and solid phases. Mol. Phys. 15: 399–348

    Google Scholar 

  • Field, L.D. and Sternhell, S. 1981. The conformation of biphenyls in nematic liquid crystalline solution. The relationship between the torsional angles and the size of the halogens in 2, 6-dihalogenated derivatives. J. Am. Chem. Soc. 103: 738

    Article  CAS  Google Scholar 

  • Field, L.D. Sternhell, S. and Tracey, A.S. 1977. The conformation of biphenyls in nematic liquid crystalline solution. An investigation of the torsional angles in 2,6-dihalogenated derivatives. J. Am. Chem. Soc. 99: 5249–5253

    Article  CAS  Google Scholar 

  • Fischer-Hjalmars, I. 1963. Conjugation and non—bonded interaction. Tetrahedron 19: 1805–1815

    Article  CAS  Google Scholar 

  • Goldstein, J.A. 1979. The structure—activity relationahips of halogenated biphenyls as enzyme inducers. Ann. N.Y. Acad. Sci. 320: 164

    Article  CAS  Google Scholar 

  • Goldstein, J.A. Hickman, P., Bergman, H., McKinney, J.D. and Walker, M.P. 1977. Separation of pure polychlorinated biphenyl isomers into two types of inducers on the basis of induction of cytochrome P-450 or P-448. Chem.-Biol. Interact 17: 69–87

    Article  CAS  Google Scholar 

  • Goldstein, J.A., Hass, J.R., Linko, P. and Harvan, D.J. 1978. 2,3,7,8-Tetrachlorodibenzofuran in a commercially available 99% pure polychlorinated biphenyl isomer identified as the inducer of hepatic cytochrome P-448 and arylhydrocarbon hydroxylase in the rat. Drug Me tab. Mspos. 6: 258–264

    CAS  Google Scholar 

  • Gropen, O. and Seip, H.M. 1971. Failure of the CNDO/2 method to predict the barriers and conformations in some conjugated systems. Chem. Phys. Lett. 11: 445–449

    Article  CAS  Google Scholar 

  • Kaiser, K.L.E. 1974. On the optical activity of polychorinated biphenyls. Environ. Pollut. 7: 93–101

    Article  CAS  Google Scholar 

  • Pariser, R. and Parr, R.G. 1953. A semiempirical theory of the electronic spectra and electronic structure of complex unsaturated molecules. II. J. Chem Phys. 21: 767–776

    Article  CAS  Google Scholar 

  • Parkinson, A., Cockerline, R. and Safe, S. 1980a. Polychlorinated biphenyl isomers and congeners as inducers of both 3-methylcholanthrene- and phenobarbitone-type microsomal enzyme activity. Chem. Biol. Interact 29: 277–289

    Article  CAS  Google Scholar 

  • Parkinson, A., Robertson, L.W., Safe, L. and Safe, S. 1980b. Polychlorinated biphenyls as inducers of hepatic microsomal enzymes: Structure-activity rules. Chem. -Biol. Interact 30: 271–285

    Article  CAS  Google Scholar 

  • Parkinson, A. and Safe, S. 1981. Arylhydrocarbon hydroxylase induction and its relationship to the toxicity of halogenated arylhydrocarbons. Toxicol. Environ. Chem. 4: 1–45

    CAS  Google Scholar 

  • Parkinson, A., Robertson, L.W., Safe, L. and Safe, S. 1981. Polychlorinated biphenyls as inducers of hepatic microsomal enzymes: Effects of di-ortho substitution. Chem.-Biol. Interact 35: 1–12

    Article  CAS  Google Scholar 

  • Poland, A. and Glover, E. 1973. Chlorinated dibenzo-p-dioxins. Potent inducers of δ-aminolevulinic acid synthetase and arylhydrocarbon hydroxylase. Structure-activity relation. Mol. Pharmacol. 9: 736–747

    CAS  Google Scholar 

  • Poland, A. and Glover, E. 1977. Chlorinated biphenyl induction of arylhydrocarbon hydroxylase activity: A study of the structure-activity relationship. Mol. Pharmacol. 13: 924–938

    CAS  Google Scholar 

  • Poland, A., Glover, E. and Kende, A.S. 1976. Stereospecific, high affinity binding of 2,3,7,8-Tetrachlorodibenzo-p-dioxin by hepatic cytosol. J. Biol. Chem. 251: 4936–4946

    CAS  Google Scholar 

  • Pople, J.A. and Beveridge, D.L, 1970. Approximate Molecule Orbital Theory, McGraw Hill, New York

    Google Scholar 

  • Pople, J.A., Beveridge, D.L. and Dobosh, P. A. 1967. Approximate self-consistent molecular-orbital theory. V. Intermediate neglect of differential overlap. J. Chem. Phys. 47: 2026–2033

    Article  CAS  Google Scholar 

  • Pople, J.A. 1953. Electron interaction in unsaturated hydrocarbons. Trans. Faraday Soc. 49: 1375–1385

    Article  CAS  Google Scholar 

  • TFPCB. 1976. Background to the regulation of polychlorinated biphenyls (PCB) in Canada. Task Force on -PCB. Environment Canada and Health & Welfare Canada, Technical report 76–1, pp. 169

    Google Scholar 

  • Tyrrell, J., Weinstock, R.B. and Weinhold, F. 1981. Bond-antibond analysis of internal rotation barriers in glyoxal and related molecules: Where INDO fails. Int. J. Quantum Chem. 19: 781–791

    Article  CAS  Google Scholar 

  • Weiss, S. and Leroi, G.E. 1968. Direct observation of the infrared torsional spectrum of C2H6, CH3CD3, and C2D6. J. Chem. Phys. 48: 962–967

    Article  CAS  Google Scholar 

  • Yoshimura, H. Ozawa, N. and Saeki, S. 1978. Induction effect of polychlorinated biphenyls mixture and individual isomers on the hepatic microsomal enzymes. Chem. Pharm. Bull. 26: 1215–1221

    Article  CAS  Google Scholar 

  • Yoshimura, H., Yoshihara, S., Ozawa, N. and Miki, M. 1979. Possible correlation between induction modes of hepatic enzymes by PCBs and their toxicity in rats. Ann. N.Y. Acad. Sci. 320: 179–192

    Article  CAS  Google Scholar 

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© 1984 D. Reidel Publishing Company.

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Cullen, J.M., Kaiser, K.L.E. (1984). An Examination of the Role of Rotational Barriers in the Toxicology of Pcb’s. In: Kaiser, K.L.E. (eds) QSAR in Environmental Toxicology. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6415-0_4

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  • DOI: https://doi.org/10.1007/978-94-009-6415-0_4

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-009-6417-4

  • Online ISBN: 978-94-009-6415-0

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