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Title: Synthesis, selected coordination chemistry and extraction behavior of a (phosphinoylmethyl)pyridyl N-oxide-functionalized ligand based upon a 1,4-diazepane platform

For syntheses of new multidentate chelating ligands ((6,6'4(1,4-diazepane-1,4-diyl)bis(methylene))bis(pyridine-6,2-diyl))bis(methylene))bis(diphenylphosphine oxide) (2) and 6,6'-((1,4-diazepane1,4-diyl)bis(methylene))bis(2-((diphenylphosphoryl)methyl)pyridine 1-oxide) (3), based upon a 1,4-diazepane platform functionalized with 2-(diphenylphosphinoylmethyl)pyridine P-oxide and 2-(diphenylphosphinoylmethyl)pyridine NP-dioxide fragments, respectively, the results are reported. Our results from studies of the coordination chemistry of the ligands with selected lanthanide nitrates and Cu(BF4)(2) are outlined, and crystal structures for two complexes, [Cu(2)](BF4)2 and [Cu(3)](BF4)2, are described along with survey Eu(III) and Am(III) solvent extraction analysis, for 3.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [5] ;  [1]
  1. Univ. of New Mexico, Albuquerque, NM (United States)
  2. Univ. of Hawaii, Honolulu, HI (United States)
  3. Bruker AXS Inc., Madison, WI (United States)
  4. Supramolecular Design Inst., Oak Ridge, TN (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
OSTI Identifier:
1261469
Grant/Contract Number:
AC05-00OR22725; FG02-03ER15419; CHE-0443580
Type:
Accepted Manuscript
Journal Name:
Polyhedron
Additional Journal Information:
Journal Volume: 97; Journal Issue: C; Journal ID: ISSN 0277-5387
Publisher:
Elsevier
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY Diazepane; Pyridyl; Phosphine oxide; Coordination chemistry; X-ray crystal structures; MM3 FORCE-FIELD; MOLECULAR-MECHANICS; CRYSTAL-STRUCTURE; COPPER(II) COMPLEXES; DECORATED PYRIDINE; SOLVENT-EXTRACTION; N; P; P'-TRIOXIDE; LANTHANIDE; THERMODYNAMICS; AMERI