A new access route to dimetal sandwich complexes, including a radical anion

被引：4

作者：

Labrum, Nicholas S. ^{[1
]}

Losovyj, Yaroslav ^{[1
]}

Caulton, Kenneth G. ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 87期

关键词：

DENSITY-FUNCTIONAL CALCULATIONS; PENTALENE COMPLEXES; MAIN-GROUP; METAL; CHEMISTRY; DERIVATIVES; CHROMIUM(I); OXIDATION; CATIONS;

D O I：

10.1039/c8cc05204b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The amide in Cr[N(SiMe3)(2)](2)(THF)(2) is displaced by equimolar [K(18-crown-6)][naphthalene] to form the dimetal sandwich Cr-2(naphthalene)(2)(-) as a radical anion paired with [K(18-crown-6)](+). Two Cr atoms in the sandwich do not form any multiple Cr/Cr bonds, and instead each interacts with one naphthalene in an (6) fashion and with the second naphthalene in an (4) connectivity mode. The naphthalene C/C distances show the effect of back donation from two chromium atoms to a greater extent than simply by 1 electron ring reduction, in comparison to the naphthalene radical anion. The SOMO of the product was established by variable temperature EPR spectroscopy, and the atom ratios and elemental purity were supported by XPS. The possible generality of the displacement of N(SiMe3)(2)(-) from a low valent metal is discussed.

引用

页码：12397 / 12399

页数：3

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