Two-dimensional metal organic alkyne nanosheet as well as preparation method and application thereof

Abstract

The invention provides a two-dimensional metal organic alkyne nanosheet, and the structural general formula of the two-dimensional metal organic alkyne nanosheet is shown in the specification, and inthe formula, R is an organic alkyne ligand at least containing three alkynyl groups and one benzene ring, M is a metal ligand containing divalent or higher metal ions, 3<=m<=6, and n>=3. Alkynyl in the organic alkyne ligand can react with the metal ligand to be in bonding connection, a stable cross-linked net structure is formed, and then the regularly repeated planar two-dimensional metal organicalkyne nanosheet with the cross-linked structure is formed. Due to the fact that the added organic alkyne ligand is single in structure and fixed to a specific metal ligand bonding reaction site, thethickness of a formed net-shaped structure is controllable, and therefore the prepared planar two-dimensional metal organic alkyne nanosheet is controllable in thickness, stable in performance and beneficial to follow-up use. 本发明提供了一种二维金属有机炔纳米片，所述二维金属有机炔纳米片的结构通式如下：其中，所述R为至少含有三个炔基及一个苯环的有机炔配体；M为含有二价及以上金属离子的金属配体；3≤m≤6；n≥3；所述有机炔配体中的炔基都能与金属配体反应，发生键合连接，形成稳定的交联的网状结构，进而形成具有规律重复的具有交联结构的平面状二维金属有机炔纳米片。由于添加的有机炔配体结构单一、与特定的金属配体键合反应位点固定，形成的网状结构厚度大小可控，因此制备得到的平面状二维金属有机炔纳米片厚度可控，性能稳定，有利于后续使用。