Neutral Guest Capture via Lewis Acid/Base Molecular Square Receptors. X-ray Crystal Structure of {Cyclobis[(cis-(dppp)Pt(4-ethynylpyridyl)2)(cis- (PEt3)2Pt)]Ag2}+6(phenazine)- (-OSO2CF3)6
- 24 September 1998
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 37 (21), 5595-5601
- https://doi.org/10.1021/ic980727c
Abstract
Interaction of {cyclobis[(cis-(dppp)Pt(4-ethynylpyridyl)2)(cis-(L)M)]Ag2}+6(-OSO2CF3)6, where M = Pt(II) or Pd(II) and L = dppp or 2PEt3, with pyridine, pyrazine, phenazine, or 4,4‘-dipyridyl ketone results in coordination Lewis acid/base host−guest assemblies via the “π-tweezer effect” and mono or bis neutral guest coordination. All host−guest complexes are air stable microcrystalline solids with decomposition points greater than 170 °C. The homometallic Pt(II) receptors are more stable than the heteroaromatic Pt(II)−Pd(II) receptors toward heteratom-containing aromatic guests. The X-ray crystal structure of the host−guest complex {cyclobis[(cis-(dppp)Pt(4-ethynylpyridyl)2)(cis-(PEt3)2Pt)]Ag2}+6(phenazine)(-OSO2CF3)6 is reported. The crystals with the empirical formula C62H68AgF9N3O9P4Pt2S3 are triclinic P1̄ with a = 12.3919(8) Å, b = 17.160(1) Å, c = 18.932(1) Å, α = 90.892(1)°, β = 97.127(1)°, γ = 89.969(1)°, and Z = 2.Keywords
This publication has 15 references indexed in Scilit:
- C2-Bridged Titanocene−Ferrocenyl Complexes: Synthesis, Reaction Chemistry, and Electrochemical BehaviorOrganometallics, 1998
- Self-Assembly, Symmetry, and Molecular Architecture: Coordination as the Motif in the Rational Design of Supramolecular Metallacyclic Polygons and PolyhedraAccounts of Chemical Research, 1997
- Nanoscale Tectonics: Self-Assembly, Characterization, and Chemistry of a Novel Class of Organoplatinum Square MacrocyclesJournal of the American Chemical Society, 1997
- Fast Atom Bombardment Mass Spectrometry for Characterizing Cationic Chelated SpeciesAngewandte Chemie International Edition in English, 1996
- Design and Study of Synthetic Chiral Nanoscopic Assemblies. Preparation and Characterization of Optically Active Hybrid, Iodonium−Transition-Metal and All-Transition-Metal Macrocyclic Molecular SquaresJournal of the American Chemical Society, 1996
- Polar Interactions between Stacked π Systems in Fluorinated 1,8‐Diarylnaphthalenes: Importance of Quadrupole Moments in Molecular RecognitionAngewandte Chemie International Edition in English, 1995
- NMR parameters of alkynesProgress in Nuclear Magnetic Resonance Spectroscopy, 1990
- Macrocyclically Fixed DiarylhexatrienesAngewandte Chemie International Edition in English, 1990
- Self-assembling ionophoresJournal of the American Chemical Society, 1989
- On the freeness of the metaphosphate anion in aqueous solutionJournal of the American Chemical Society, 1986