1312291-65-8Relevant articles and documents
Poly[(μ4-2,5-dimethoxybenzene-1,4-dicarboxylato)manganese(II) ] and its zinc(II) analogue: Three-dimensional coordination polymers containing unusually coordinated metal centres
Boehle, Tony,Eissmann, Frank,Weber, Edwin,Mertens, Florian O. R. L.
, p. m5-m8 (2011)
The title compounds, [Mn(C10H8O6)] n and [Zn(C10H8O6)]n, are isomorphous coordination polymers prepared from 2,5-dimeth-oxy-terephthalic acid (H2dmt) and the respective metal(II) salts. Both complexes form three-dimensional metal-organic frameworks with each M II centre bridged by four 2,5-dimeth-oxy-terephthalate (dmt2-) anions, resulting in the same type of network topology. The asymmetric unit consists of one M II cation on a twofold axis and one half of a dmt2- anion (located on a centre of inversion). In the crystal structure, the M II centres are coordinated in a rather unusual way, as there is a distorted tetra-hedral inner coordination sphere formed by four carboxyl-ate O atoms of four different dmt2- anions, and an additional outer coordination sphere formed by two meth-oxy and two carboxyl-ate O atoms, with each of the O atoms belonging to one of the four different dmt2- anions forming the inner coordination sphere. Consideration of both coordination spheres results in a super-dodeca-hedral coordination geometry for the M II centres. Besides the numerous M II...O inter-actions, both structures are further stabilized by weak C - H...O contacts.
