Synthesis and chemical reactivity of an Fe(III) metallacrown-6 towards N-donor Lewis bases

被引：10
|
作者：
Sutradhar, Manas [1 ]
Guedes da Silva, M. Fatima C. [1 ,2 ]
Pombeiro, Armando J. L. [1 ]
机构：
[1] Univ Tecn Lisboa, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
[2] Univ Lusofona Humanidades & Tecnol, ULHT Lisbon, P-1749024 Lisbon, Portugal
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2013年 / 30卷
关键词：
Fe(III) metallacrown-6; N-acetylsalicylhydrazide; Chemical reactivity; X-ray crystallography; STRUCTURAL-CHARACTERIZATION; CRYSTAL-STRUCTURE; INORGANIC ANALOG; CROWN-ETHERS; COMPLEXES; LIGAND; 12-METALLACROWN-4; 12-MC-4; METALLAMACROCYCLE; ISOMERS;
D O I：
10.1016/j.inoche.2013.01.017
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The iron(III) 18-azametallacrown-6 [Fe(ashz)(EtOH)](6) (1) (ashz(3-) = trianionic derivative of N-acetylsalicylhydrazide), prepared upon reaction of [Fe-3(mu(3)-O)(Piv)(6)(H2O)(3)](Piv) (Piv=(BuCOO-)-C-t). with H(3)ashz, reacts with N-heterocyclic Lewis bases (B=pyridine, 4-methyl pyridine, 3-amino pyridine or imidazole), leading to the stable adducts [Fe(ashz)(8)](6) (2 to 5, respectively) upon replacement of the labile ethanol ligand. All the compounds were characterized by elemental analysis, IR and ESI-mass spectroscopies and, for complexes 1 and the 3-amino pyridine adduct 4, also by X-ray crystallography. In both 1 and 4, the stereochemistry of the ligand imposes a propeller configuration of the metal cation which exhibits alternating Lambda/Delta forms. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：42 / 45
页数：4
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