无机材料学报2020，Vol.35Issue(2)：243-249,7.DOI:10.15541/jim20190118
pH调控合成U型配体介导的八核铀酰草酸网络
pH-dependent Synthesis of Octa-nuclear Uranyl-oxalate Network Mediated by U-shaped Linkers
摘要
Abstract
In this work,we report a novel octa-nuclear uranyl (U8) motif [(UO2)8O4(μ3-OH)2(μ2-OH)2]4+ embedded in a uranyl-oxalate coordination polymer (compound 1) based on a U-shaped linker with extra-long xylylene chains for stabilizing the resulting high-nuclear motif through additional cross-linking connectivity.A comparison with dimeric and monomeric uranyl compounds obtained at different pH value from the same hydrothermal system reveals that,solution pH plays a vital role in formation of this octa-nuclear uranyl motif by promoting hydrolysis of uranyl source.Since high similarity of eight uranium centers in this nearly planar U8 motif here,overlapping and broadening of signals in fluorescence,infra-red (IR) and Raman spectra can be found.关键词
锕系配位聚合物/八核铀酰中心/U-型链/pH调控Key words
actinide coordination polymers/octa-nuclear uranyl/U-shaped Linker/pH effect分类
化学化工引用本文复制引用
吴思,梅雷,胡孔球,柴之芳,聂长明,石伟群..pH调控合成U型配体介导的八核铀酰草酸网络[J].无机材料学报,2020,35(2):243-249,7.基金项目
National Natural Science Foundation of China (21671191,21577144,11405186) （21671191,21577144,11405186）
