Differential metathesis reactions of 2,2′-bipyridine and 1,10-phenanthroline complexes of cobalt(II) and nickel(II) (see abstract)

Boone Brewer, Neil R. Brooks, Sharina Abdul Halim, Andrew G. Sykes

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Addition of ammonium hexafluorophosphate to aqueous solutions of M(chelate)Cl2 [chelate = 2,2′-bipyridine and 1,10-phenanthroline, M = Co(II) and Ni(II)] produce different metathesis products. Tris-substituted chelate complexes are produced in the case of bipyridine; however {[cis-M(phen)2Cl(H2O)][cis-M(phen) 2(H2O)2]}(PF6)3·4. 5H2O, a unique example of cocrystallized ionization isomers, is produced with phenanthroline. Extended hydrogen bonding interactions connect [M(phen)2Cl(H2O)]+ and [M(phen) 2(H2O)2]2+ cations in the crystal lattice. Because metathesis reactions using phenanthroline produce disubstituted complexes, the convenient synthesis of symmetric [Ni(phen) 3]2+ and asymmetric [Ni(phen)2(5- nitrophenanthroline)]2+ is described.

Original languageEnglish
Pages (from-to)651-662
Number of pages12
JournalJournal of Chemical Crystallography
Volume33
Issue number9
DOIs
Publication statusPublished - Sep 2003
Externally publishedYes

Fingerprint

Phenanthrolines
metathesis
Nickel
chelates
cobalt
nickel
Hydrogen Bonding
Crystal lattices
Isomers
Ionization
Cations
Hydrogen bonds
crystal lattices
isomers
aqueous solutions
cations
ionization
hydrogen
synthesis
products

Keywords

  • Chelate
  • Cocrystallization
  • Ionization isomers
  • Metathesis

ASJC Scopus subject areas

  • Spectroscopy
  • Condensed Matter Physics
  • Structural Biology

Cite this

Differential metathesis reactions of 2,2′-bipyridine and 1,10-phenanthroline complexes of cobalt(II) and nickel(II) (see abstract). / Brewer, Boone; Brooks, Neil R.; Abdul Halim, Sharina; Sykes, Andrew G.

In: Journal of Chemical Crystallography, Vol. 33, No. 9, 09.2003, p. 651-662.

Research output: Contribution to journalArticle

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AU - Sykes, Andrew G.

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N2 - Addition of ammonium hexafluorophosphate to aqueous solutions of M(chelate)Cl2 [chelate = 2,2′-bipyridine and 1,10-phenanthroline, M = Co(II) and Ni(II)] produce different metathesis products. Tris-substituted chelate complexes are produced in the case of bipyridine; however {[cis-M(phen)2Cl(H2O)][cis-M(phen) 2(H2O)2]}(PF6)3·4. 5H2O, a unique example of cocrystallized ionization isomers, is produced with phenanthroline. Extended hydrogen bonding interactions connect [M(phen)2Cl(H2O)]+ and [M(phen) 2(H2O)2]2+ cations in the crystal lattice. Because metathesis reactions using phenanthroline produce disubstituted complexes, the convenient synthesis of symmetric [Ni(phen) 3]2+ and asymmetric [Ni(phen)2(5- nitrophenanthroline)]2+ is described.

AB - Addition of ammonium hexafluorophosphate to aqueous solutions of M(chelate)Cl2 [chelate = 2,2′-bipyridine and 1,10-phenanthroline, M = Co(II) and Ni(II)] produce different metathesis products. Tris-substituted chelate complexes are produced in the case of bipyridine; however {[cis-M(phen)2Cl(H2O)][cis-M(phen) 2(H2O)2]}(PF6)3·4. 5H2O, a unique example of cocrystallized ionization isomers, is produced with phenanthroline. Extended hydrogen bonding interactions connect [M(phen)2Cl(H2O)]+ and [M(phen) 2(H2O)2]2+ cations in the crystal lattice. Because metathesis reactions using phenanthroline produce disubstituted complexes, the convenient synthesis of symmetric [Ni(phen) 3]2+ and asymmetric [Ni(phen)2(5- nitrophenanthroline)]2+ is described.

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