Structure-Directing Effects of Coordinating Solvents, Ammonium and Phosphonium Counterions in Uranyl Ion Complexes with 1,2-, 1,3-, and 1,4-Phenylenediacetates
作者:Pierre Thuéry、Youssef Atoini、Jack Harrowfield
DOI:10.1021/acs.inorgchem.9b03404
日期:2020.2.17
ladder-like monoperiodic polymers with the 1,2 isomer in the complexes [H2NMe2]2[(UO2)2(1,2-pda)3]·H2O (7) and [H2NMe2]2[(UO2)2(1,2-pda)3]·3H2O (8), while a conformational change giving the 1,3 and 1,4 isomers a pincer-like geometry favors the formation of dinuclear ring subunits assembled into daisy-chain-like monoperiodic polymers in [H2NMe2]2[(UO2)2(1,3-pda)3]·0.5H2O (9), [H2NMe2]2[(UO2)2(1,4-pda)3]
三种异构体1,2-,1,3-和1,4-苯二乙酸(1,2-,1,3-和1,4-pdaH2)已用于在溶剂溶剂下合成16种铀酰离子络合物。水热条件,并存在各种大分子配体和有机抗衡离子。两个中性和均质的络合物[UO2(1,2-pda)] CH3CN(1)和[UO2(1,3-pda)](2)结晶为二配体,配体的配位方式略有不同,但是相同的sql拓扑。在铀酰配位域中引入配位溶剂N-甲基-2-吡咯烷酮(NMP)或N,N'-二甲基丙烯脲(DMPU)产生四种配合物[UO2(1,2-pda)(DMPU)](3) ,[UO2(1,3-pda)(NMP)](4),[UO2(1,4-pda)(NMP)](5)和[UO2(1,4-pda)(DMPU)]( 6),它们是具有fes(3和5)或3,4L13(6)拓扑的单周期(4)或双周期物种。二甲铵阳离子的存在与[H2NMe2] 2 [(UO2)2(1,2-pda)3]·H2O(7)和[