Synthesis and crystal structures of 3D supramolecular compounds: [ M (4,4′-bipy)₂(H₂O)₄] · (4,4′-bipy)₂ · (3,5-daba)₂ · 8H₂O ( M =Zn, Mn)

摘要

Two new supramolecular compounds [M(4,4′-bipy)₂ (H₂O)₄]  · (4,4′-bipy)₂  · (3,5-daba)₂  · 8H₂O (M=Zn(1) or Mn(2), 4,4′-bipy  = 4,4′-bipyridine, 3,5-daba  = 3,5-diaminobenzoic acid anion) were synthesized and characterized by elemental analysis and X-ray crystal diffraction. In [M(4,4′-bipy)₂(H₂O)₄]2+, the M(II) is coordinated by two nitrogen atoms from two 4,4′-bipy molecules and four oxygen atoms from four waters to form an octahedral configuration. There exist uncoordinated 4,4′-bipy molecules, 3,5-diaminobenzolate counterions and water guests in the compounds. The 3D structures of the title supramolecular compounds are constructed by rich hydrogen bonds among [M(4,4′-bipy)₂(H₂O)₄]2+, uncoordinated 4,4′-bipy molecules, water molecules and 3,5-daba, containing a diverting hexa-member water ring.View full textDownload full textKeywords4,4′-bipy; Water ring, Hydrogen bonds, Supramolecular compoundsRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/00958970801947488