A Robust Open Framework Formed by Decavanadate Clusters and Copper(II) Complexes of Macrocyclic Polyamines: Permanent Microporosity and Catalytic Oxidation of Cycloalkanes

by / Thursday, 12 May 2016 / Published in

A Robust Open Framework Formed by Decavanadate Clusters and Copper(II) Complexes of Macrocyclic Polyamines: Permanent Microporosity and Catalytic Oxidation of Cycloalkanes


Published in: ACS Inorganic Chemistry, 55, 4970-4979
2016/05/16
Publisher URL: http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.6b00505
DOI: http://dx.doi.org/10.1021/acs.inorgchem.6b00505 Authors:
Jagoba Martin-Caballero Ana San José Wéry Santiago Reinoso Beñat Artetxe Leire San Felices Bouchra El Bakkali Guido Trautwein Juan Alcañiz-Monge José Luis Vilas Juan M. Gutiérrez-Zorrilla
Abstract:

The first decavanadate-based microporous hybrid, namely, [Cu(cyclam)][{Cu(cyclam)}2(V10O28)]·10H2O (1, cyclam = 1,4,8,11-tetraazacyclotetradecane) was prepared by reaction of (VO3)− anions and {Cu(cyclam)}2+ complexes in NaCl (aq) at pH 4.6–4.7 and characterized by elemental analyses, thermogravimetry, and X-ray diffraction (powder, single-crystal) techniques. Compound 1 exhibits a POMOF-like supramolecular open-framework built of covalent decavanadate/metalorganic layers with square-like voids, the stacking of which is aided by interlamellar cementing complexes and generates water-filled channels with approximate cross sections of 10.4 × 8.8 Å2. The framework is robust enough to remain virtually unaltered upon thermal evacuation of all water molecules of hydration, as demonstrated through single-crystal X-ray diffraction studies on the anhydrous phase 1a. This permanent microporosity renders interesting functionality to 1, such as selective adsorption of CO2 over N2 and remarkable activity as heterogeneous catalyst toward the H2O2-based oxidation of the highly-stable, tricyclic alkane adamantane.

ARobust

Ask an author a personal copy of its work

RESEARCH LINE


Be sociable, share!
Facebooktwittergoogle_plusredditpinterestlinkedintumblrmailFacebooktwittergoogle_plusredditpinterestlinkedintumblrmail
TOP