Metalation of a Mesoporous Three-Dimensional Covalent Organic Framework
作者:Luke A. Baldwin、Jonathan W. Crowe、David A. Pyles、Psaras L. McGrier
DOI:10.1021/jacs.6b10316
日期:2016.11.23
Constructing metalated three-dimensional (3D) covalentorganicframeworks is a challenging synthetic task. Herein, we report the synthesis and characterization of a highly porous (SABET = 5083 m2 g-1) 3D COF with a record low density (0.13 g cm-3) containing π-electron conjugated dehydrobenzoannulene (DBA) units. Metalation of DBA-3D-COF 1 with Ni to produce Ni-DBA-3D-COF results in a minimal reduction
构建金属化三维 (3D) 共价有机框架是一项具有挑战性的合成任务。在此,我们报告了一种高度多孔 (SABET = 5083 m2 g-1) 3D COF 的合成和表征,该 COF 具有创纪录的低密度 (0.13 g cm-3),其中包含 π 电子共轭脱氢苯并环烯 (DBA) 单元。DBA-3D-COF 1 与 Ni 金属化以产生 Ni-DBA-3D-COF 导致材料表面积的最小减少 (SABET = 4763 m2 g-1),因为金属在腔内结合DBA 单元,并保持结晶度。两种 3D DBA-COF 还显示出对乙烷和乙烯气体的巨大吸收能力。