Identification of hexachlorobenzene residues by gas-liquid chromatography

Collins, G.B.; Holmes, Darrell; Wallen, Margaret

doi:10.1016/s0021-9673(00)83099-x

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…Chlorinated dibenzofurans (C1-DBF's) are reported impurities in several types of chlorinated aromatic industrial chemicals produced in the United States and abroad, including PCB's (Bowes, MulvihiU, Simoneit, Burlingame & Risebrough, 1975;Nagayama, Kuratsune & Masuda, 1976;Miyata, Nakamura & Kashimoto, 1976), pentachlorophenols (Schwetz, Keeler & Gehring, 1974;Buser, 1975) and hexachlorobenzene (Villanueva, Jennings, Burse & Kimbrough, 1974). CI-DBF's are recognized environmental pollutants and are contaminants in foods (Department of Health, Education and Welfare, 1976;Firestone, 1973;Collins, Holmes & Wallen, 1972). Extremely high toxicity has been reported for the C1-DBF compound whose structure is reported here (Moore, Gupta & Vos, 1976;McKinney, Chae, Gupta, Moore & Goldstein, 1976).…”

mentioning

confidence: 99%

2,3,7,8-Tetrachlorodibenzofuran

Hubbard¹,

Mighell²,

Pomerantz³

1978

Acta Crystallogr Sect B

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Abstract. C12H4C140 , M r = 305.97, monoclinic, C2/c, a = 14.702 (4), b = 12.886 (4), c = 6.256 (1) A, fl--99.90 (2) °, V= 1168 A, Pobs = 1.72 (flotation), Pcalc = 1.74 g cm -3, Z -=--4. The structure has been determined by direct methods and refined to R = 0.042 for 1863 independent reflections. The molecule is essentially planar. A crystallographic twofold axis bisects a C-C bond and passes through the O atom of the fivemembered furan ring. The two unique C-C1 distances are 1.725 (2) and 1.732 (2) A, the C-O distance is 1.385 (2) A, and the benzenoid ring C-C distances range between 1.366 (2) and 1.404 (2) A. The longest C-C bond distance within the benzenoid rings joins the C atoms to which the C1 atoms are attached. The title compound is closely related in structure to the highly toxic 2,3,7, 8-tetrachlorodibenzo-p-dioxin.

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