Reactivity of vanadium oxytrichloride with β-diketones and diesters as precursors for vanadium nitride and carbide

被引：13

作者：

Blackburn, Ben J. ^{[1
]}

Crane, Jared H. ^{[1
]}

Knapp, Caroline E. ^{[1
]}

Powell, Michael J. ^{[1
]}

Marchand, Peter ^{[1
]}

Pugh, David ^{[2
]}

Bear, Joseph C. ^{[1
]}

Parkin, Ivan P. ^{[1
]}

Carmalt, Claire J. ^{[1
]}

机构：

[1] UCL, Dept Chem, Mat Chem Ctr, 20 Gordon St, London WC1H 0AJ, England

[2] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England

来源：

MATERIALS & DESIGN | 2016年 / 108卷

基金：

英国工程与自然科学研究理事会;

关键词：

Vanadium oxychloride; Precursors; Ester adducts; Vanadium carbide; Vanadium nitride; Hard materials; CHEMICAL-VAPOR-DEPOSITION; TRANSITION-METAL CARBIDES; SOLID-STATE SYNTHESIS; CRYSTAL-STRUCTURES; LOW-TEMPERATURE; MECHANICAL-PROPERTIES; COORDINATION POLYMER; VN; COMPLEXES; TITANIUM;

D O I：

10.1016/j.matdes.2016.06.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vanadium(V) oxytrichloride was reacted with 2,4-pentanedione, diethyl malonate, and diethyl succinate under inert conditions, forming compounds: dichloro(oxo)(2,4-pentanedione) vanadium(V) [1], dichloro(oxo)(diethyl malonate) vanadium(IV) [2] and dichloro(oxo)(diethyl succinate) vanadium(IV) [3]. Compounds 1-3 are coordinated to the vanadium centre through the two carbonyl oxygen atoms of the bidentate ligand. It was determined by X-ray crystallography that the structures of the resulting complexes were significantly different, resulting in a monomeric complex (1), a tetrameric ring (2) and a 1D coordination polymer (3). Following the synthesis and isolation of 1-3, they were tested as precursors for vanadium nitride and vanadium carbide by annealing under nitrogen and argon respectively at 1200 degrees C for 24 h. The resulting materials were characterised by: XRD, EDS, XPS and TEM. (C) 2016 The Authors. Published by Elsevier Ltd.

引用

页码：780 / 790

页数：11

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