A Novel Niobium Cluster Aqua Ion with Capping μ4 -Se Ligand

Artem L. Gushchin; Bee Lean Ooi; Pernille Harris; Pavel A. Abramov; Maxim N. Sokolov

doi:10.1002/zaac.201800476

A Novel Niobium Cluster Aqua Ion with Capping μ4 -Se Ligand

Artem L. Gushchin^*, Bee Lean Ooi, Pernille Harris, Pavel A. Abramov, Maxim N. Sokolov

^*Corresponding author for this work

Department of Chemistry

RAS - Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The aqueous solution chemistry of niobium is underex-plored, and well characterized aqua complexes are scarce. In this con-tribution, a new niobium aqua complex was obtained by treatment of Zn-reduced ethanolic solution of NbCl₅ with HCl in the presence of aselenide source (ZnSe). This is the first example of selenium containing aqua complex of niobium. The yellow-green aqua complex was isolated by cation-exchange chromatography and transformed into corresponding isothiocyanate complex by ligand exchange, which was crystallized as (PyH)_4.5[H_1.5Nb₄SeO₅(NCS)₁₀]·0.5H₂O. X-ray structural analysis revealed a metal-metal bonded tetranuclear{Nb₄(μ₄-Se)(μ₂-O)₅}⁴⁺core with a capping μ₄-Se ligand.

Original language	English
Journal	Zeitschrift fuer Anorganische und Allgemeine Chemie
Volume	645
Issue number	4
Pages (from-to)	398-401
Number of pages	5
ISSN	0044-2313
DOIs	https://doi.org/10.1002/zaac.201800476
Publication status	Published - 2019

Keywords

High-valent cluster
Niobium aqua ion
Niobium
Selenide bridging ligand
Crystal structure

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title = "A Novel Niobium Cluster Aqua Ion with Capping μ4 -Se Ligand",

abstract = "The aqueous solution chemistry of niobium is underex-plored, and well characterized aqua complexes are scarce. In this con-tribution, a new niobium aqua complex was obtained by treatment of Zn-reduced ethanolic solution of NbCl5 with HCl in the presence of aselenide source (ZnSe). This is the first example of selenium containing aqua complex of niobium. The yellow-green aqua complex was isolated by cation-exchange chromatography and transformed into corresponding isothiocyanate complex by ligand exchange, which was crystallized as (PyH)4.5[H1.5Nb4SeO5(NCS)10]·0.5H2O. X-ray structural analysis revealed a metal-metal bonded tetranuclear{Nb4(μ4-Se)(μ2-O)5}4+ core with a capping μ4-Se ligand.",

keywords = "High-valent cluster, Niobium aqua ion, Niobium, Selenide bridging ligand, Crystal structure",

author = "Gushchin, {Artem L.} and Ooi, {Bee Lean} and Pernille Harris and Abramov, {Pavel A.} and Sokolov, {Maxim N.}",

year = "2019",

doi = "10.1002/zaac.201800476",

language = "English",

volume = "645",

pages = "398--401",

journal = "Zeitschrift fuer Anorganische und Allgemeine Chemie",

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T1 - A Novel Niobium Cluster Aqua Ion with Capping μ4 -Se Ligand

AU - Gushchin, Artem L.

AU - Ooi, Bee Lean

AU - Harris, Pernille

AU - Abramov, Pavel A.

AU - Sokolov, Maxim N.

PY - 2019

Y1 - 2019

N2 - The aqueous solution chemistry of niobium is underex-plored, and well characterized aqua complexes are scarce. In this con-tribution, a new niobium aqua complex was obtained by treatment of Zn-reduced ethanolic solution of NbCl5 with HCl in the presence of aselenide source (ZnSe). This is the first example of selenium containing aqua complex of niobium. The yellow-green aqua complex was isolated by cation-exchange chromatography and transformed into corresponding isothiocyanate complex by ligand exchange, which was crystallized as (PyH)4.5[H1.5Nb4SeO5(NCS)10]·0.5H2O. X-ray structural analysis revealed a metal-metal bonded tetranuclear{Nb4(μ4-Se)(μ2-O)5}4+ core with a capping μ4-Se ligand.

AB - The aqueous solution chemistry of niobium is underex-plored, and well characterized aqua complexes are scarce. In this con-tribution, a new niobium aqua complex was obtained by treatment of Zn-reduced ethanolic solution of NbCl5 with HCl in the presence of aselenide source (ZnSe). This is the first example of selenium containing aqua complex of niobium. The yellow-green aqua complex was isolated by cation-exchange chromatography and transformed into corresponding isothiocyanate complex by ligand exchange, which was crystallized as (PyH)4.5[H1.5Nb4SeO5(NCS)10]·0.5H2O. X-ray structural analysis revealed a metal-metal bonded tetranuclear{Nb4(μ4-Se)(μ2-O)5}4+ core with a capping μ4-Se ligand.

KW - High-valent cluster

KW - Niobium aqua ion

KW - Niobium

KW - Selenide bridging ligand

KW - Crystal structure

U2 - 10.1002/zaac.201800476

DO - 10.1002/zaac.201800476

M3 - Journal article

SN - 0044-2313

VL - 645

SP - 398

EP - 401

JO - Zeitschrift fuer Anorganische und Allgemeine Chemie

JF - Zeitschrift fuer Anorganische und Allgemeine Chemie

IS - 4

ER -

A Novel Niobium Cluster Aqua Ion with Capping μ4 -Se Ligand

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Keywords

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