1:1 Adducts of lead(II) thiocyanate with 1,10-phenanthroline and 2,2',6',2"-terpyridine

Engelhardt, Lutz M.; Furphy, Brenda M.; Harrowfield, Jack M.; Patrick, Jennifer M.; White, Allan H.

doi:10.1021/ic00306a039

Cited by 35 publications

(14 citation statements)

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“…An molecular structure consists of polymeric, with various similarities to polymeric (phen)Pb(SCN) 2 [32], PbI 2 (L) (L ¼ 2,2 0 -bipyridine, and 1,10-phenanthroline) [33], and Cu(bpy)(SCN) 2 [34], in which the lead atoms are eight-coordinate, PbN 4 S 4 : two of the coordinated sites are occupied by the nitrogen atoms of bidentate bipyridine, the four nitrogen atoms are clustered about one pole of the symmetry axis, with the four sulfur atoms about its opposite and rather long (Pb-S ¼ 3.25-3.46 Å ). The arrangement of two SCN À anions suggests a gap in coordination geometry around the metal ion (angle N(2)-Pb(1)-N(2A) is 155.91 (19)), occupied possibly by a stereoactive lone pair of electrons on the lead(II) [14].…”

Section: Crystal Structure Of [Pb(bpy)(scn) 2 ]mentioning

confidence: 99%

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)

Morsali

Payeghader

Monfared

et al. 2003

Journal of Coordination Chemistry

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Complexes [Pb(bpy)(SCN) 2 ] n (bpy ¼ 2,2 0 -bipyridine), [Pb (phen) 2 (NO 3 ) 0.7 (ClO 4 ) 0.3 ](ClO 4 ), Pb(phen) 2 (SCN)-(NO 3 ), and Pb(phen) 2 (SCN)(ClO 4 ) (phen ¼ 1,10-phenanthroline)], have been synthesized using a direct reaction between Pb(NO 3 ) 2 and ligands. The complexes have been isolated and characterized by IR-spectra and CHN-elemental analysis. The structures of [Pb(bpy)(SCN) 2 ] n and [Pb(phen) 2 (NO 3 ) 0.7 (ClO 4 ) 0.3 ](ClO 4 ) have been confirmed by X-ray crystallography. The single crystal X-ray crystallography of a new one-dimensional complex of Pb(II) with 2,2 0 -bipyridine, [Pb(bpy)(SCN) 2 ] n , shows the complex to be polymeric as a result of thiocyanate ligand bridging. The Pb atom being in a unsymmetrical eight-coordinate, N 4 S 4 , environment and the arrangement of the 2,2 0 -bipyridine, thiocyanate anion suggest a gap in coordination geometry around the Pb(II) ion, occupied possibly by a stereoactive lone pair of electrons on lead (II) and the coordination around atoms is hemi-directed. There is a -interaction between the aromatic rings of the interchains in [Pb(bpy)(SCN) 2 ] n , this stacking causes the complex to be more stable. An attempt to isolate single crystals of Pb(phen) 2 (NO 3 )(ClO 4 ) from water led to the isolation of [Pb(phen) 2 (NO 3 ) 0.7 (ClO 4 ) 0.3 ](ClO 4 ). The single crystal X-ray study shows the complex to be monomeric. The Pb atom lies in an unsymmetrical six-coordinate, N 4 O 2 , environment and the arrangement of the 1,10-phenanthrolines, suggest a gap in coordination geometry around the Pb(II) ion, occupied possibly by a stereoactive lone pair of electrons on lead (II) and the coordination around atoms is hemi-directed.

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Section: Crystal Structure Of [Pb(bpy)(scn) 2 ]mentioning

confidence: 99%

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)

Morsali

Payeghader

Monfared

et al. 2003

Journal of Coordination Chemistry

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“…In white Pb{0P(Ph) 2 0} 2 [239] a bidentate 0P(Ph) 2 0 ligand acts as a triatom bridge. In another three cases [240,241] a bidentate NCS group is the triatom bridge, and in colourless Pb(ac) 2 en [242] one of the acetate ligands acts as a triatom bridge (Pb-OCO-Pb).…”

Section: Oligomeric Compoundsmentioning

confidence: 99%

Lead Coordination and Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data

Holloway¹,

Melnı́k²

1997

Main Group Metal Chemistry

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This review covers over three hundred and sixty coordination and organometallic complexes of lead. About 20% of these contain lead in its +4 oxidation state, of which one fifth are dilead(+6) units, and two are anionic clusters. The Pb(IV) derivatives are predominantly organometallic, many stabilized by sandwich ligation. The majority of the Pb(ll) compounds are typical coordination complexes. Mon-to polynuclear derivatives are found, with coordinations numbers from 2 to 12. The effect of the non bonded pair of valence electrons is observed in lower coordination number Pb(ll) complexes. Examples of distortion, geometric and coordination isomerism are observed. Factors affecting bond lengths and bond angles are discussed, and some ambiguities in coordination polyhedra are outlined.

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“…The complex was prepared by addition of 15 ml of an aqueous solution containing 0.379 g (1 mmol) Pb(CH 3 COO) 23 H 2 O, to 35 ml of a warm aqueous mixture of saccharin (0.366 g/2 mmol) and 1,10-phenanthroline.monohydrate (0.234 g/1 mmol). The volume of the mixture was reduced to 35 ml over a water bath and after cooling, transparent and well-formed single crystals were obtained.…”

Section: Synthesis Of the Complexmentioning

confidence: 99%

Crystal Structure and IR Spectrum of Diaqua(o-phenanthroline) bis(saccharinato)lead(II)

Baran¹,

Wagner²,

Rossi³

et al. 2000

Z. anorg. allg. Chem.

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The crystal structure of [Pb(sac)2ophen(H2O)2] (sac = saccharinate anion; ophen = 1,10‐phenanthroline) has been solved by single X‐ray diffractometry. It crystallizes in the monoclinic space group C2/c with Z = 4. The PbII atom presents the coordination number eight with unusual coordination of the ligand atoms between square‐antiprism and dodecahedron. The saccharinate anion acts as a bidentate ligand. The i. r. spectrum of the complex has been analyzed in detail and assigned on the basis of the structural peculiarities.

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1:1 Adducts of lead(II) thiocyanate with 1,10-phenanthroline and 2,2',6',2"-terpyridine

Cited by 35 publications

References 1 publication

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)

Lead Coordination and Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data

Crystal Structure and IR Spectrum of Diaqua(o-phenanthroline) bis(saccharinato)lead(II)

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1:1 Adducts of lead(II) thiocyanate with 1,10-phenanthroline and 2,2',6',2"-terpyridine

Cited by 35 publications

References 1 publication

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)2] n (byp = 2,2'-Bipyridine) and [Pb(phen)2(NO3)0.7(ClO4)0.3](ClO4) (phen = 1,10-Phenanthroline)

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)2] n (byp = 2,2'-Bipyridine) and [Pb(phen)2(NO3)0.7(ClO4)0.3](ClO4) (phen = 1,10-Phenanthroline)

Lead Coordination and Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data

Crystal Structure and IR Spectrum of Diaqua(o-phenanthroline) bis(saccharinato)lead(II)

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Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)

Syntheses and Characterization of a New One-Dimensional Polymer Containing (µ-Thiocyanate)(bpy)Lead(II) Molecule and New Mixed-Anion Lead (II) Complexes: Crystal Structures of [Pb(bpy)(SCN)₂] _n (byp = 2,2'-Bipyridine) and [Pb(phen)₂(NO₃)_0.7(ClO₄)_0.3](ClO₄) (phen = 1,10-Phenanthroline)