Crystal Structure of Coordination Polymers Based on A Heterometallic Carboxylate Complex

Abstract

Three new metal-organic frameworks [Zn(Hibdc)₂]·DMF (1), (H₂NMe₂)[Li₂Zn₃(H₂O)(dmf)(Hbtc)₃(btc)]·6DMF·H₂O (2), and [Li₂Zn₂(H₂O)₂(bpp)(bpdc)₃]·7DMF (3) are obtained in the interaction of heterometallic carboxylate complex [Li₂Zn₂(piv)₆(py)₂] with isophthalic (H₂ibdc) and trimesic (H₃btc) acids and in the presence of both 4,4′-biphenyldicarboxylic acid (H₂bpdc) and 4,4′-bispyridylpropane (bpp). The structure of the obtained compounds is determined by the single crystal X-ray diffraction analysis. In the reactions studied the structure of the initial {Li₂Zn₂} fragment is not retained. A complicated fragmentation of this four-nuclear block occurs, including the formation of binuclear heterometallic dimers {LiZn}.