Preparations and Infrared Spectra of some Metal Pentachlorobenzoates

G. B. Deacon, P. W. Felder

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The pentachlorobenzoates, NaOCOC6Cl5, 2H2O, KOCOC6Cl5, H2O, MOCOC6Cl5 (M = Cs or Tl), Hg(OCOC6Cl5)2, RHgOCOC6Cl5 (R = Ph or p-MeOC6H4), and R3SnOCOC6Cl5 (R = Ph or Me) have been prepared by neutralization, metathesis, or cleavage reactions. Vibrational assignments have been made for infrared absorption frequencies of, these compounds, pentachlorobenzoic acid, bispenta-chlorophenylmercury, and pentachlorophenylmercuric chloride. The carboxylate stretching frequencies indicate that Hg(OCOC6Cl5)2, RHgOCOC6Cl5, and R3SnOCOC6Cl5 (in chloroform) have unidentate pentachlorobenzoate ligands, whereas crystalline R3SnOCOC6Cl5 compounds have bridging pentachlorobenzoate groups. Pentachlorobenzoic acid is dimeric in the solid state, and in toluene, carbon tetrachloride, and benzene there are both monomeric and dimeric species.

Original languageEnglish
Pages (from-to)1587-1594
Number of pages8
JournalAustralian Journal of Chemistry
Volume20
Issue number8
DOIs
Publication statusPublished - 1 Jan 1967

Cite this

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title = "Preparations and Infrared Spectra of some Metal Pentachlorobenzoates",
abstract = "The pentachlorobenzoates, NaOCOC6Cl5, 2H2O, KOCOC6Cl5, H2O, MOCOC6Cl5 (M = Cs or Tl), Hg(OCOC6Cl5)2, RHgOCOC6Cl5 (R = Ph or p-MeOC6H4), and R3SnOCOC6Cl5 (R = Ph or Me) have been prepared by neutralization, metathesis, or cleavage reactions. Vibrational assignments have been made for infrared absorption frequencies of, these compounds, pentachlorobenzoic acid, bispenta-chlorophenylmercury, and pentachlorophenylmercuric chloride. The carboxylate stretching frequencies indicate that Hg(OCOC6Cl5)2, RHgOCOC6Cl5, and R3SnOCOC6Cl5 (in chloroform) have unidentate pentachlorobenzoate ligands, whereas crystalline R3SnOCOC6Cl5 compounds have bridging pentachlorobenzoate groups. Pentachlorobenzoic acid is dimeric in the solid state, and in toluene, carbon tetrachloride, and benzene there are both monomeric and dimeric species.",
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Preparations and Infrared Spectra of some Metal Pentachlorobenzoates. / Deacon, G. B.; Felder, P. W.

In: Australian Journal of Chemistry, Vol. 20, No. 8, 01.01.1967, p. 1587-1594.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Preparations and Infrared Spectra of some Metal Pentachlorobenzoates

AU - Deacon, G. B.

AU - Felder, P. W.

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N2 - The pentachlorobenzoates, NaOCOC6Cl5, 2H2O, KOCOC6Cl5, H2O, MOCOC6Cl5 (M = Cs or Tl), Hg(OCOC6Cl5)2, RHgOCOC6Cl5 (R = Ph or p-MeOC6H4), and R3SnOCOC6Cl5 (R = Ph or Me) have been prepared by neutralization, metathesis, or cleavage reactions. Vibrational assignments have been made for infrared absorption frequencies of, these compounds, pentachlorobenzoic acid, bispenta-chlorophenylmercury, and pentachlorophenylmercuric chloride. The carboxylate stretching frequencies indicate that Hg(OCOC6Cl5)2, RHgOCOC6Cl5, and R3SnOCOC6Cl5 (in chloroform) have unidentate pentachlorobenzoate ligands, whereas crystalline R3SnOCOC6Cl5 compounds have bridging pentachlorobenzoate groups. Pentachlorobenzoic acid is dimeric in the solid state, and in toluene, carbon tetrachloride, and benzene there are both monomeric and dimeric species.

AB - The pentachlorobenzoates, NaOCOC6Cl5, 2H2O, KOCOC6Cl5, H2O, MOCOC6Cl5 (M = Cs or Tl), Hg(OCOC6Cl5)2, RHgOCOC6Cl5 (R = Ph or p-MeOC6H4), and R3SnOCOC6Cl5 (R = Ph or Me) have been prepared by neutralization, metathesis, or cleavage reactions. Vibrational assignments have been made for infrared absorption frequencies of, these compounds, pentachlorobenzoic acid, bispenta-chlorophenylmercury, and pentachlorophenylmercuric chloride. The carboxylate stretching frequencies indicate that Hg(OCOC6Cl5)2, RHgOCOC6Cl5, and R3SnOCOC6Cl5 (in chloroform) have unidentate pentachlorobenzoate ligands, whereas crystalline R3SnOCOC6Cl5 compounds have bridging pentachlorobenzoate groups. Pentachlorobenzoic acid is dimeric in the solid state, and in toluene, carbon tetrachloride, and benzene there are both monomeric and dimeric species.

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