Isolation of a monomeric hybrid zinc phosphate and its one-dimensional relative

摘要

Two hybrid zinc phosphates, [Zn(phen)]_2(H_(1.5)PO_4)_2(H_2PO_4) (1) and [Zn(phen)]_2(HPO_4)(H_2PO_4)_2·xH_2O (x ≈ 0.5) (2), have been synthesized under hydrothermal conditions in the presence of 1,10-phenanthroline (phen) ligands. They are the first members in the zinc-phosphate-phen system. The structure of 1 consists of two ZnO_3N_2 trigonal bipyramids bridged by three P-centered tetrahedra. 1 is novel in the sense that it provides the first example of a monomeriz zinc phosphate crystallized in an non-centrosynmmetric space group. The one-dimensional structure of 2 consists of a network of strictly alternating ZnO_3N_2 trigonal bipyramids, HPO_4 and H_2PO_4 tetrahedra by sharing vertices. Interestingly, the chain-like structure of 2 can be generated from 1 by a shifting of Zn-O-P bonds.