Phosphorescent complexes of {Mo6I8}4+ with triazolates: [2+3] cycloaddition of alkynes to [Mo6I8(N3)6]2-

被引：14

作者：

Mironova, Alina D. ^{[1
]}

Mikhailov, Maksim A. ^{[1
]}

Brylev, Konstantin A. ^{[1
,2
]}

Gushchin, Artem L. ^{[1
,2
]}

Sukhikh, Taisiya S. ^{[1
,2
]}

Sokolov, Maxim N. ^{[1
,2
,3
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, 3 Acad Lavrentiev Ave, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, 2 Pirogova Str, Novosibirsk 630090, Russia

[3] Kazan Fed Univ, 18 Kremlyovskaya Str, Kazan 420008, Russia

来源：

NEW JOURNAL OF CHEMISTRY | 2020年 / 44卷 / 47期

基金：

俄罗斯科学基金会;

关键词：

RHENIUM CLUSTER COMPLEXES; OCTAHEDRAL HEXARHENIUM(III) COMPLEXES; EXCITED-STATE PROPERTIES; HEXANUCLEAR MOLYBDENUM; SUPRAMOLECULAR ASSEMBLIES; PHOTOPHYSICAL PROPERTIES; IODIDE CLUSTER; LUMINESCENCE; AZIDES; REDOX;

D O I：

10.1039/d0nj04259e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Bu4N)(2)[Mo6I8(N-3)(6)], prepared in a clean high-yield reaction from (Bu4N)(2)[Mo6I8(CH3COO)(6)] and Me3SiN3, undergoes [3+2] cycloaddition with CH3O(O)CC(O)OCH3 with the formation of a novel hexakis(triazolate) complex, (Bu4N)(2)[Mo6I8(N3C2(COOCH3)(2))(6)] with symmetrically coordinated 4,5-di(carbmethoxy)triazol-2-yl ligands. The product was characterized by X-ray analysis, NMR, IR and ESI-mass spectrometry. It undergoes a quasi reversible oxidation in CH3CN at E-1/2 = 1.36 V (vs. Ag/AgCl) and is red-light emissive upon UV photoexcitation. Reaction with methylpropiolate also yields a corresponding hexakis(triazolate) complex, [Mo6I8(N3C2H(COOCH3))(6)](2-), which exists as a 1 : 1 mixture of two isomers. Alkynes that lacking strongly electron-withdrawing substituents fail to undergo the cycloaddition reaction.

引用

页码：20620 / 20625

页数：6

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