Synthesis and electrochemical study of the first tetrazolate hexanuclear rhenium cluster complex

Abstract

The linkage isomers [Re(6)Se(8)(PEt(3))(5)(1,5-MeN(4)C)](+) and [Re(6)Se(8)(PEt(3))(5)(2,5-MeN(4)C)](+) were generated upon reaction of tetrabutylammonium azide with the corresponding acetonitrile complex, [Re(6)Se(8)(PEt(3))(5)(NCCH(3))](2+); these are the first (tetrazolato)rhenium complexes reported to date.

Photophysical Properties of a Series of Rhenium Selenide Cluster Complexes Containing Nitrogen‐Donor Ligands

“…[35][36][37] Here, we report the excited-state lifetimes, quantum yields, and the radiative and nonradiative decay rates for thirteen rhenium selenide complexes that we recently reported. [35][36][37] Here, we report the excited-state lifetimes, quantum yields, and the radiative and nonradiative decay rates for thirteen rhenium selenide complexes that we recently reported.…”

“…[35][36][37] Electrochemical Measurements: Electrochemical measurements were conducted in an inert-atmosphere glovebox with 0.2 m Bu 4 NBF 4 /CH 2 Cl 2 . [35][36][37] Electrochemical Measurements: Electrochemical measurements were conducted in an inert-atmosphere glovebox with 0.2 m Bu 4 NBF 4 /CH 2 Cl 2 .…”

Crystal structure of octa-μ3-selenido-(p-toluenesulfonato-κO)pentakis(triethylphosphane-κP)-octahedro-hexarhenium(III)p-toluenesulfonate dichloromethane disolvate

“…Nitrile ligands are often considered weakly coordinating and substitution of alkyl and aryl nitrile ligands has often been used in single metal chemistry (Endres, 1987) and in the preparation of [Re 6 Q 8 ] 2+ (Q = S or Se) cluster complexes (Zheng & Holm, 1997;Durham et al, 2012). However, there have been reports of the hexanuclear rhenium selenide cluster core, [Re 6 Se 8 ] 2+ , activating nitriles to undergo reactions other than substitution (Orto et al, 2007;Szczepura et al, 2007). While structural reports of rhenium chalcogenide clusters containing other oxygen donor ligands have been previously reported (Dorson et al, 2009;Mironov et al, 2011;Zheng & Holm, 1997;Zheng et al, 1999), this report represents the first example of tosylate coordination to a [Re 6 Q 8 ] 2+ cluster core.…”

“…Nitrile ligands are often considered weakly coordinating and substitution of alkyl and aryl nitrile ligands has often been used in single metal chemistry (Endres, 1987) and in the preparation of [Re 6 Q 8 ] 2+ (Q = S or Se) cluster complexes (Zheng & Holm, 1997, Durham et al, 2012. However, there have been reports of the hexanuclear rhenium selenide cluster core, [Re 6 Se 8 ] 2+ , activating nitriles to undergo reactions other than substitution (Orto et al, 2007, Szczepura et al, 2007. To address this, we sought to incorporate a weakly coordinating ligand that would be readily substituted, but would not be susceptible to nucleophilic attack.…”

[Re6(μ3-Se)8]2+ Core-Containing Cluster Complexes with Isonicotinic Acid: Synthesis, Structural Characterization, and Hydrogen-Bonded Assemblies

“…Protecting ligands, such as triethylphosphine, are used to stabilize the cluster core's reactive sites and provide a route to site-differentiated isomers that can be used for additional studies [4][5][6]. The Lewis acidic core activates cluster-bound ligand(s) thus providing a pathway for possible further chemical transformations of the ligand [7][8][9][10][11][12]. These fundamental properties of the cluster have been well established and current research aims at assessing both the catalytic capabilities of the cluster complexes and using their unique physical and chemical properties for the development of functional materials.…”