Bi–Mn mixed metal organic oxide: A novel 3d-6p mixed metal coordination network

•New concept of metal organic oxide (MOO) was defined and made difference from metal organic framework.•New MOO of MOOMnBi was synthesized by hydrothermal method.•Crystal structure of MOOMnBi was determined by single crystal X-ray analysis.•The catalytic activity of MOOMnBi was studied showing reusable after 2 cycles.

A new terminology of metal organic oxide (MOO) was given a definition as a type of coordination polymers which possess the feature of inorganic connectivity between metals and the direct bonded atoms and show 1D, 2D or 3D inorganic sub-networks. One such compound was shown as an example. A 3d-6p (Mn–Bi. Named MOOMnBi) mixed metals coordination network has been synthesized via hydrothermal method. The new compound with the molecular formula of [MnBi2O(1,3,5-BTC)2]n (1,3,5-BTC stands for benzene-1,3,5-tricarboxylate) was characterized via single crystal X-ray diffraction technique that revealed a very interesting 3-dimensional (3D) framework with Bi4O2(COO)12 clusters which are further connected to Mn(COO)6 fragments into a 2D MOO. The topology study indicates an unprecedented topological type with the net point group of {413.62}{413.68}{416.65}{418.610}{422.614}{43} corresponding to 3,6,7,7,8,9-c hexa-nodal net. MOOMnBi shows catalytic activity in the synthesis of (E)-α,β-unsaturated ketones.

Graphical abstractThis metal organic framework (MOF) is the essence of a 2D metal organic oxide (MOO).Figure optionsDownload full-size imageDownload as PowerPoint slide