[Cu(C₁₂N₂H₈)₂(C₂H₃O₂)][B₅O₆(OH)₄]·C₄H₉NO: First Borate with Three‐dimensional Supramolecular Framework Formed by Hydrogen Bonds and π···π Stacking Interactions

Abstract

Abstract. The mixed-ligand pentaborate, [Cu(C 12 + cations through hydrogen bonds to form a one-dimensional (1D) ribbon-like supramolecular structure with twenty-membered

Synthesis and characterization of polyborates templated by cationic copper(II) complexes: Structural (XRD), spectroscopic, thermal (TGA/DSC) and magnetic properties

“…We are interested in expanding the structural diversity of isolated polyborate chemistry and have 4 developed a strategy of incorporating relatively highly charged cations [11] with the potential of forming multiple H-bond interactions into the aqueous DCL of borate anions so that they can template and crystal-engineer new structures. At present, copper(II) polyborate systems containing isolated anions are restricted to [Cu(C12N2H8)2(C2H3O2)][B5O6(OH)4]•C4H9NO [12], [Cu(en)2(C5H9NO)][B5O6(OH)4]2•C5H9NO [13], [Cu(en)2][B4O5(OH)4]•2B(OH)3 [14] and [Cu(en)2B(OH)3(H2O)][B4O5(OH)4]•1/2H2O [14]. In this article we report on the use coordination complexes of copper(II) containing 1,2-diaminoethane (en), rac-1,2diaminopropane (pn), rac-1, 2-diaminocyclohexane (dach), N,N-dimethyl-1, 2-diaminoethane (dmen) and N,N,N',N'-tetramethyl-1,2-diaminoethane (tmeda) ligands (Figure 2) to synthesize new polyborate compounds.…”

3D supramolecular open-framework constructed by inorganic [B5O6(OH)4]− and organic [CH3COO]− anions

“…longer B-O distances in the range of 1.454(3)-1.495(3) Å and the value of the O-B-O bond angle lies within a narrow range of 107.78(18)-112.34(17)°[14], indicating that the boron atoms lie at the center of a quite regular tetrahedron formed by four oxygen atoms. These B-O bonding distances and angles are in good agreement with the other borate compounds reported in the literatures[1,2].…”