Synthesis and grafting of CAN-derived tetravalent cerium alkoxide silylamide precursors onto mesoporous silica MCM-41

被引：18

作者：

Crozier, Alan R. ^{[1
]}

Schaedle, Christoph ^{[2
]}

Maichle-Moessme, Caecilia ^{[2
]}

Toernroos, Karl W. ^{[1
]}

Anwander, Reiner ^{[2
]}

机构：

[1] Univ Bergen, Dept Chem, N-5007 Bergen, Norway

[2] Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 15期

关键词：

SURFACE ORGANOMETALLIC CHEMISTRY; CHEMICAL-VAPOR-DEPOSITION; AMMONIUM-NITRATE; STRUCTURAL-CHARACTERIZATION; ELECTRONIC-STRUCTURE; CE-IV; OXIDATION; COMPLEXES; CATALYSTS; POLYMERIZATION;

D O I：

10.1039/c3dt33005b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The heteroleptic tetravalent cerium complex [Ce(OiPr)(3){N(SiMe3)(2)}](2) was synthesised by treating ceric ammonium nitrate (CAN) sequentially with sodium isopropoxide and lithium bis(trimethylsilyl) amide in THF. The trivalent ate complex [Ce(OiPr)(2){N(SiMe3)(2)](2)}][Li(thf)(2)] was also isolated from these reaction mixtures. A transsilylamination reaction of [Ce(OiPr) (3){N(SiMe3)(2)}](2) with tetramethyldisilazane produced a considerable amount of homoleptic Ce[N(SiHMe2)(2)](4). The polymeric complex [Li2Ce2(OiPr)(10)(1,4-dioxane)](n) was isolated as an additional ligand redistribution product. When tetravalent complexes Ce[N(SiHMe2)(2)](4), Ce[N(SiMe3)(2)](3)Cl and Cp3CeCl were allowed to react with samples of periodic mesoporous silica MCM-41, Ce(IV) hybrid materials were produced. All hybrid materials were characterised via N-2 physisorption, elemental analysis and DRIFT spectroscopy.

引用

页码：5491 / 5499

页数：9