Structure and inclusion property of supramolecular host framework [H2 L1][XCl4], L1 = N,N,N′,N′-tetra-p-methoxybenzyl-ethylenediamine; X = Fe, Co, Pd

Autor: Jian Tong, Fang Guo, Hong-lin Li, Na Lu, Lei Li, Hong-cui Yu
Rok vydání: 2012
Předmět:
Zdroj: Structural Chemistry. 24:1111-1119
ISSN: 1572-9001
1040-0400
DOI: 10.1007/s11224-012-0143-7
Popis: In this paper, we have used the hydrogen-bonding interactions, combining the designed diamine ligands and anionic metal chlorides, into the construction of a series of new pillar-layered supramolecular complexes. The flexible molecule N,N,N′,N′-tetra-p-methoxybenzyl-ethylenediamine (L1) bearing doubly protonated H-bond donors, has been synthesized and reacted with the metal chlorides (such as [PdCl4]2−, [FeCl4]− and [CoCl4]2−) via weak C–H···Cl interactions, yielding crystal products [H2 L1]2+·Cl−·[FeCl4]− (1), 0.5H2O ⊂ [H2 L1]2+·Cl−·0.5[PdCl4]2− (2) and [2-hydroxy naphthyl]1.5 ⊂ 2[H2 L1]2+·2Cl−·[CoCl4]2− (3). The 3-D networks are organic double layers formed by the self-assembly of the ligands through extensive hydrogen-bonding interactions (C–H···O or C–H···π interactions) and further interconnected by [PdCl4]2−/[FeCl4]−/[CoCl4]2− in a pillar fashion, constructing into pillar-layered networks with channels accessible to various guest molecules. The inclusion property of [H2 L1][CoCl4] was studied, varieties of guest molecules, such as 2-hydroxy naphthyl, phenanthrene and hydroquinone, can be included in the framework.
Databáze: OpenAIRE