In situ near edge X-ray absorption fine structure spectroscopy directly probes unoccupied states associated with backbonding interactions between the open metal site in a metal–organic framework and various small molecule guests.
A new acoustomicrofluidic method for synthesizing copper-based metal–organic frameworks is shown to yield novel large aspect ratio elongated crystal morphologies with high active metal site density on their surfaces, leading to enhanced conductivity.
A robust porous metal–organic framework with dual functionalities of open metal sites (OMSs) and O-rich Lewis basic sites (LBSs) has been designed and synthesized, and shows high CO2 uptake and excellent selectivity for CO2 over N2 and CH4.
Backbonding contributions to small molecule chemisorption in a metal–organic framework with open copper(i) centers