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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Surprising difference between two closely similar O(phenoxo)2O(ether)2 compartments as hosts for an aquated proton and a novel type of host-guest system
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Surprising difference between two closely similar O(phenoxo)2O(ether)2 compartments as hosts for an aquated proton and a novel type of host-guest system

机译：两个非常相似的O（phenoxo）2O（ether）2间隔作为水质子和新型宿主-客体系统的宿主之间的惊人差异

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摘要

With the aim of checking whether the O(phenoxo)_2O(methoxy)_2 compartment of 3-methoxysalicylaldehyde- diamine ligands can interact with an aquated proton, the work in this investigation presents the syntheses, characterization, crystal structures and diffuse reflectance spectra of the products obtained from the reactions of three mononuclear copper(II) compounds derived from three H_2L~(OMe) ligands (H_2L~(OMe-en), H_2L~(OMe-op) and H_2L~(OMe-hex)) with perchloric acid in DMF, MeOH and MeOH-MeCN, where 'en', 'op' and 'hex' in the superscripts of the ligand symbols indicate that the diamine functionality comes from ethylenediamine, o-phenylenediamine and trans-1,2-diaminocyclohexane, respectively. From these reactions, the following six compounds have been isolated: [{Cu~(II)L~(OMe-hen)}(Me_2NH_2)](ClO_4) (1), [{Cu~(II)L~(OMe-op)}(Me_2NH_2)](ClO_4) (2), [{Cu~(II)L~(OMe-hex)}(Me_2NH_2)](ClO_4) (3), [{Cu~(II)L~(OMe-en)}_2(enH_2)](ClO_4)_2 (4, where enH_2 means diprotonated ethylenediamine), [{Cu~(II)L~(OMe-op)}_2(opdaH_2)](ClO_4)_2?2H_2O (5, where opdaH_2 means diprotonated o-phenylenediamine) and [{Cu~(II)L~(OMe-hex)}(MeOH_2)](ClO_4) (6). The Me_2NH_2 + moiety in 1-3, NH_3 ~+ sites in 4 and 5 and MeOH_2 ~+ moiety in 6 interact with the O4 compartment by forming bifurcated hydrogen bonds. Interestingly, compound 6 is an unprecedented type of host-guest system. The individual units in 1-6 are self-assembled by non-covalent interactions to generate one, two and three-dimensional self-assemblies. A spectroscopic correlation has been enlightened.
机译：为了检查3-甲氧基水杨醛-二胺配体的O（phenoxo）_2O（甲氧基）_2区域是否可以与水化质子相互作用，本研究工作介绍了该化合物的合成，表征，晶体结构和漫反射光谱由三种H_2L〜（OMe）配体（H_2L〜（OMe-en），H_2L〜（OMe-op）和H_2L〜（OMe-hex））的三种单核铜（II）化合物与高氯酸反应制得的在DMF中为MeOH和MeOH-MeCN，其中配体符号上标中的“ en”，“ op”和“ hex”表示二胺官能度分别来自乙二胺，邻苯二胺和反式1,2-二氨基环己烷。从这些反应中，分离出以下六种化合物：[{Cu〜（II）L〜（OMe-hen）}（Me_2NH_2）]（ClO_4）（1），[{Cu〜（II）L〜（OMe- op）}（Me_2NH_2）]（ClO_4）（2），[{Cu〜（II）L〜（OMe-hex）}（Me_2NH_2）]（ClO_4）（3），[{Cu〜（II）L〜（ OMe-en）} _ 2（enH_2）]（ClO_4）_2（4，其中enH_2表示双质子化乙二胺），[{Cu〜（II）L〜（OMe-op）} _ 2（opdaH_2）]（ClO_4）_2？2H_2O （5，其中opdaH_2是指双质子化的邻苯二胺）和[{Cu〜（II）L〜（OMe-hex）}（MeOH_2）]（ClO_4）（6）。 1-3中的Me_2NH_2 +部分，4和5中的NH_3〜+位点和6中的MeOH_2〜+部分通过形成分叉的氢键与O4区域相互作用。有趣的是，化合物6是史无前例的主机系统类型。 1-6中的各个单元通过非共价相互作用进行自组装，以生成一维，二维和三维自组装。光谱相关性得到了启发。

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