Synthesis of bis(2-pyridylmethyl)selenide and solid-state structural characterization of bis-tridentate zinc triad perchlorate chelates

Benjamin Y. Winer; Steven M. Berry; Robert D. Pike; Deborah C. Bebout

doi:10.1016/j.poly.2012.09.009

Synthesis of bis(2-pyridylmethyl)selenide and solid-state structural characterization of bis-tridentate zinc triad perchlorate chelates

Benjamin Y. Winer, Steven M. Berry, Robert D. Pike, Deborah C. Bebout

Chemistry & Biochemistry

Research output: Contribution to journal › Article › peer-review

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Abstract

Bis-tridentate chelates of Cd(ClO₄)₂ and Hg(ClO ₄)₂ with N₄Se₂ metal coordination environments were isolated by slow evaporation from methanol/n-butanol solutions containing two equivalents of bis(2-methylpyridyl)selenide (L). The ligand L was obtained through a previously unexplored pathway to symmetric selenoethers involving selenoacetamide. Although no structurally characterized complexes of the harder group 12 metal ions Zn(II) or Cd(II) with selenoether ligands have had M-SeR₂ bonds and numerous attempts to crystallize a bis-tridentate chelate of Zn(II) were unsuccessful, the distorted trans facial octahedral complex [CdL₂](ClO₄)₂ was characterized. In addition, X-ray crystallographic characterization of [HgL ₂](ClO₄)₂ revealed a mononuclear structure with distorted trigonal prismatic coordination geometry, the highest coordination number Hg(II) complex with selenoether ligands yet reported.

Original language	English (US)
Pages (from-to)	125-130
Number of pages	6
Journal	Polyhedron
Volume	48
Issue number	1
DOIs	https://doi.org/10.1016/j.poly.2012.09.009
State	Published - Nov 14 2012

Bibliographical note

Funding Information:
This work was supported in part by the US National Science Foundation Division of Chemistry under Grant 0315934 . Purchase of the College of William & Mary Smart Apex II diffractometer was also supported by the National Science Foundation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. We also thank the Camille and Henry Dreyfus Foundation for a Scholar/Fellow award to D.C.B. for support of S.M.B. and the research.

Keywords

Bis-tridentate chelate
Group 12
Single crystal X-ray structure
Symmetric selenoether

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title = "Synthesis of bis(2-pyridylmethyl)selenide and solid-state structural characterization of bis-tridentate zinc triad perchlorate chelates",

abstract = "Bis-tridentate chelates of Cd(ClO4)2 and Hg(ClO 4)2 with N4Se2 metal coordination environments were isolated by slow evaporation from methanol/n-butanol solutions containing two equivalents of bis(2-methylpyridyl)selenide (L). The ligand L was obtained through a previously unexplored pathway to symmetric selenoethers involving selenoacetamide. Although no structurally characterized complexes of the harder group 12 metal ions Zn(II) or Cd(II) with selenoether ligands have had M-SeR2 bonds and numerous attempts to crystallize a bis-tridentate chelate of Zn(II) were unsuccessful, the distorted trans facial octahedral complex [CdL2](ClO4)2 was characterized. In addition, X-ray crystallographic characterization of [HgL 2](ClO4)2 revealed a mononuclear structure with distorted trigonal prismatic coordination geometry, the highest coordination number Hg(II) complex with selenoether ligands yet reported.",

keywords = "Bis-tridentate chelate, Group 12, Single crystal X-ray structure, Symmetric selenoether",

author = "Winer, {Benjamin Y.} and Berry, {Steven M.} and Pike, {Robert D.} and Bebout, {Deborah C.}",

note = "Funding Information: This work was supported in part by the US National Science Foundation Division of Chemistry under Grant 0315934 . Purchase of the College of William & Mary Smart Apex II diffractometer was also supported by the National Science Foundation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. We also thank the Camille and Henry Dreyfus Foundation for a Scholar/Fellow award to D.C.B. for support of S.M.B. and the research. ",

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AU - Bebout, Deborah C.

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N2 - Bis-tridentate chelates of Cd(ClO4)2 and Hg(ClO 4)2 with N4Se2 metal coordination environments were isolated by slow evaporation from methanol/n-butanol solutions containing two equivalents of bis(2-methylpyridyl)selenide (L). The ligand L was obtained through a previously unexplored pathway to symmetric selenoethers involving selenoacetamide. Although no structurally characterized complexes of the harder group 12 metal ions Zn(II) or Cd(II) with selenoether ligands have had M-SeR2 bonds and numerous attempts to crystallize a bis-tridentate chelate of Zn(II) were unsuccessful, the distorted trans facial octahedral complex [CdL2](ClO4)2 was characterized. In addition, X-ray crystallographic characterization of [HgL 2](ClO4)2 revealed a mononuclear structure with distorted trigonal prismatic coordination geometry, the highest coordination number Hg(II) complex with selenoether ligands yet reported.

AB - Bis-tridentate chelates of Cd(ClO4)2 and Hg(ClO 4)2 with N4Se2 metal coordination environments were isolated by slow evaporation from methanol/n-butanol solutions containing two equivalents of bis(2-methylpyridyl)selenide (L). The ligand L was obtained through a previously unexplored pathway to symmetric selenoethers involving selenoacetamide. Although no structurally characterized complexes of the harder group 12 metal ions Zn(II) or Cd(II) with selenoether ligands have had M-SeR2 bonds and numerous attempts to crystallize a bis-tridentate chelate of Zn(II) were unsuccessful, the distorted trans facial octahedral complex [CdL2](ClO4)2 was characterized. In addition, X-ray crystallographic characterization of [HgL 2](ClO4)2 revealed a mononuclear structure with distorted trigonal prismatic coordination geometry, the highest coordination number Hg(II) complex with selenoether ligands yet reported.

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KW - Single crystal X-ray structure

KW - Symmetric selenoether

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Synthesis of bis(2-pyridylmethyl)selenide and solid-state structural characterization of bis-tridentate zinc triad perchlorate chelates

Abstract

Bibliographical note

Keywords

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