Mixed-valence copper(<scp>i,ii</scp>) complexes with 4-(1H-pyrazol-1-yl)-6-R-pyrimidines: from ionic structures to coordination polymers
作者:Katerina A. Vinogradova、Viktor P. Krivopalov、Elena B. Nikolaenkova、Natalia V. Pervukhina、Dmitrii Yu. Naumov、Evgenii G. Boguslavsky、Mark B. Bushuev
DOI:10.1039/c5dt04005a
日期:——
sterically hindered, enabling it to participate in metal ion binding. Importantly, all copper ions in [Cu2L3Br3]n show similar tetrahedral environments, CuNBr3 and CuN2Br2, which is extremely rare for mixed-valence copper(I,II) compounds. The ligands L2 and L3 show blue emission which is quenched upon their coordination to copper ions. The 1D coordination polymer [Cu2L3Br3]n shows high thermal stability and
两个基于嘧啶的配体,4-(3,5-二苯基-1 H-吡唑-1-基)-6-(吗啉代)嘧啶(L 2)和4-(3,5-二苯基-1 H-吡唑- 1-yl)-6-苯氧基嘧啶(L 3)和一系列混合价卤化铜(I,II)配合物[Cu(L 2)2 Br] 2 [Cu 2 Br 4 ](1),[ Cu(L 2)2 Cl] [CuCl 2 ](2)和[Cu 2 L 3 Br 3 ] n(3),已经合成。配合物[Cu(L 2)2 Br] 2 [Cu 2 Br 4 ]是通过使L 2与CuBr 2在MeCN中以1:1的摩尔比反应而制备的。通过在MeCN中以2:1:1摩尔比的L 2,CuCl 2和CuCl之间的反应合成了其氯仿类似物[Cu(L 2)2 Cl] [CuCl 2 ] 。配体L 2充当螯合剂。在配合物的结构中[Cu(L 2)2 Br] 2 [Cu 2Br 4 ]和[Cu(L 2)2 Cl] [CuCl 2 ]中,Cu