新型大体积苯基桥接α -二亚胺双核配体的合成、表征和晶体结构

IF 1.1 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Heteroatom Chemistry Pub Date : 2018-06-25 DOI:10.1002/hc.21424

Ali Mechria, Moncef Msaddek

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引用次数: 0

摘要

合成了一系列结构和电子调制的苯基桥接α-二亚胺配体，其通式为Ar- n =C(Me)-C(Me)=N-C6H4-N=C(Me)-C(Me)=N-Ar (L1: Ar = 2,6- ipr2 - c6h3;L2: Ar = 2,6- me2 - c6h3;L3: 4-Me-C6H4;L4: Ar = 4-Et-C6H4;L5: Ar = 2,4,6- cl3 - c6h2;L6: Ar = 4-Cl-C6H4)通过1H NMR, 13C NMR, IR和元素分析对其进行了表征。此外，通过紫外可见光谱研究了电子修饰的效果，并通过单晶x射线衍射证实了代表性配体的结构。此外，还确定了同一配体的DFT电子结构。

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Synthesis, characterization, and crystal structure of novel bulky phenyl-bridged α-diimine binucleating ligands

A series of sterically and electronically modulated phenyl-bridged α-diimine ligands L1–L6 of the general formula Ar-N=C(Me)-C(Me)=N-C₆H₄-N=C(Me)-C(Me)=N-Ar have been synthesized (L1 : Ar = 2,6-iPr₂-C₆H₃; L2: Ar = 2,6-Me₂-C₆H₃; L3: 4-Me-C₆H₄; L4: Ar = 4-Et-C₆H₄; L5: Ar = 2,4,6-Cl₃-C₆H₂; L6: Ar = 4-Cl-C₆H₄). All of which have been characterized by ¹H NMR, ¹³C NMR, IR, and elemental analysis. In addition, the effect of the electronic modification was studied by UV–Vis spectroscopy, and the structure of a representative ligand was confirmed by single-crystal X-ray diffraction. Moreover, a DFT electronic structure of the same ligand has been determined.

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来源期刊

Heteroatom Chemistry 化学-化学综合

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Heteroatom Chemistry brings together a broad, interdisciplinary group of chemists who work with compounds containing main-group elements of groups 13 through 17 of the Periodic Table, and certain other related elements. The fundamental reactivity under investigation should, in all cases, be concentrated about the heteroatoms. It does not matter whether the compounds being studied are acyclic or cyclic; saturated or unsaturated; monomeric, polymeric or solid state in nature; inorganic, organic, or naturally occurring, so long as the heteroatom is playing an essential role. Computational, experimental, and combined studies are equally welcome. Subject areas include (but are by no means limited to): -Reactivity about heteroatoms for accessing new products or synthetic pathways -Unusual valency main-group element compounds and their properties -Highly strained (e.g. bridged) main-group element compounds and their properties -Photochemical or thermal cleavage of heteroatom bonds and the resulting reactivity -Uncommon and structurally interesting heteroatom-containing species (including those containing multiple bonds and catenation) -Stereochemistry of compounds due to the presence of heteroatoms -Neighboring group effects of heteroatoms on the properties of compounds -Main-group element compounds as analogues of transition metal compounds -Variations and new results from established and named reactions (including Wittig, Kabachnik–Fields, Pudovik, Arbuzov, Hirao, and Mitsunobu) -Catalysis and green syntheses enabled by heteroatoms and their chemistry -Applications of compounds where the heteroatom plays a critical role. In addition to original research articles on heteroatom chemistry, the journal welcomes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.