On the Crystal Structure of a Lead(II) Bromide Hydrate, 3PbBr2.2H2O.

Andersson, Jan; Lundgren, Georg; Larking, Ingrid; Ohlson, Ragnar; Shimizu, Akira

doi:10.3891/acta.chem.scand.24-2670

“…The adducts whose structures have been determined by X-ray methods, P5Cl2 2tu (14) and PIsBr2-2dmso (191, are both polymeric with lead seven-and six-coordinate respectively. The only other lead halide adduct whose structure has been reported, 3PbBr20 2H20 (unstable at room temperature) (20), has water molecules lodged in a distorted lead(E1) bromide lattice with each lead atom eight-coordinate.…”

Section: Rwults and Discussionmentioning

confidence: 99%

Synthesis and vibrational spectra of some lead(II) halide adducts with O-, S-, and N-donor atom ligands

Wharf¹,

Gramstad²,

Makhija³

et al. 1976

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Lead(II) halides (PbX2 where X = Cl, Br, and I) formed five types of adducts with monodentate (L) and bidentate (LL) ligands: PbX2•L, PbX2•2L, 2PbX2•L, PbX2•LL, and PbX2•2LL, but not all halides and ligands produced each type. Monodentate ligands were dimethylsulphoxide, N,N-dimethylacetamide, N,N-dimethylthioacetamide, thioacetamide, 2,6-dimethyl-γ-pyrone, N-methyl-2-pyridone, N-methyl-2-pyrollidinone, thiourea, pyridine, piperidine, and aniline, while bidentate ligands were ethylenediamine, tetramethylethylenediamine, 1,10-phenanthroline, and 2,2′-bipyridine. Infrared and Raman spectra are reported together with ligand vibrational frequencies shifted by coordination. Under similar experimental conditions qualitative trends in acceptor and donor abilities appeared to be PbI2 > PbBr2 > PbCl2 and S-donors > O-donors, respectively.

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Lead: Inorganic ChemistryBased in part on the article Lead: Inorganic Chemistry by Philip G. Harrison which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Bharara

¹

,

Atwood

²

2005

Encyclopedia of Inorganic Chemistry

1

0

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This article covers basic chemistry of lead(II) including coordination geometries of halides, pseudohalides, oxides, carboxylates, thiolates, and nitrogen and/or phosphorus‐containing ligands. Coordination number around lead(II) ranges from 1 to 12 but is by no means comprehensive. Tetrahedral four‐coordination is observed only for lead(IV) compounds with bulky ligands. Lead forms halide complexes with both oxidation states but lead(IV) halides are much less stable then monomeric lead(II) halides. Like lead(II) halides, lead pseudohalides also form complexes with donor molecules and these complexes are irregular with high coordination number. Binary and ternary oxides of lead have found importance in electronic and technological applications, while polymeric lead(II) alkoxides [Pb(OR 2 )] are insoluble and poorly characterized. Ternary and mixed oxides of lead with perovskite structure are electroactive and are characterized by large dielectric constants. Lead(II) chalcogenides especially PbS, are photoconductors and widely used in photoelectric cells and IR detectors. Lead derivatives of oxyacids and organic acid, containing bivalent lead are extensively used in organic synthesis as oxidizing agents. The variable structure of highly coordinate lead(II) carboxylates and their complexes are characterized by intermolecular association. 207 Pb NMR and potentiometry have been widely employed for study of lead compounds in solution. Reduction of lead in liquid ammonia or direct fusion of various metals at 700°C results in the formation of anionic clusters. Such species have been identified with 207 Pb NMR in solution or recently by laser ablation in gaseous state.

show abstract

Lead: Inorganic ChemistryBased in part on the article Lead: Inorganic Chemistry by Philip G. Harrison which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Bharara

¹

,

Atwood

²

2005

Encyclopedia of Inorganic and Bioinorganic Chemistry

0

View full text Add to dashboard Cite

This article covers basic chemistry of lead(II) including coordination geometries of halides, pseudohalides, oxides, carboxylates, thiolates, and nitrogen and/or phosphorus‐containing ligands. Coordination number around lead(II) ranges from 1 to 12 but is by no means comprehensive. Tetrahedral four‐coordination is observed only for lead(IV) compounds with bulky ligands. Lead forms halide complexes with both oxidation states but lead(IV) halides are much less stable then monomeric lead(II) halides. Like lead(II) halides, lead pseudohalides also form complexes with donor molecules and these complexes are irregular with high coordination number. Binary and ternary oxides of lead have found importance in electronic and technological applications, while polymeric lead(II) alkoxides [Pb(OR 2 )] are insoluble and poorly characterized. Ternary and mixed oxides of lead with perovskite structure are electroactive and are characterized by large dielectric constants. Lead(II) chalcogenides especially PbS, are photoconductors and widely used in photoelectric cells and IR detectors. Lead derivatives of oxyacids and organic acid, containing bivalent lead are extensively used in organic synthesis as oxidizing agents. The variable structure of highly coordinate lead(II) carboxylates and their complexes are characterized by intermolecular association. 207 Pb NMR and potentiometry have been widely employed for study of lead compounds in solution. Reduction of lead in liquid ammonia or direct fusion of various metals at 700°C results in the formation of anionic clusters. Such species have been identified with 207 Pb NMR in solution or recently by laser ablation in gaseous state.

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On the Crystal Structure of a Lead(II) Bromide Hydrate, 3PbBr2.2H2O.

Cited by 7 publications

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Synthesis and vibrational spectra of some lead(II) halide adducts with O-, S-, and N-donor atom ligands

Synthesis and vibrational spectra of some lead(II) halide adducts with O-, S-, and N-donor atom ligands

Lead: Inorganic ChemistryBased in part on the article Lead: Inorganic Chemistry by Philip G. Harrison which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Lead: Inorganic ChemistryBased in part on the article Lead: Inorganic Chemistry by Philip G. Harrison which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

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