Europium(ii) compounds: Simple synthesis of a molecular complex in water and coordination polymers with 2,2′-bipyrimidine-mediated ferromagnetic interactions

Gaël Zucchi; Pierre Thuéry; Eric Rivière; Michel Ephritikhine

doi:10.1039/c0cc02539a

Europium(ii) compounds: Simple synthesis of a molecular complex in water and coordination polymers with 2,2′-bipyrimidine-mediated ferromagnetic interactions

Gaël Zucchi
, Pierre Thuéry
, Eric Rivière
, Michel Ephritikhine

CEA/DSM/IRAMIS
Université Paris-Saclay

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Reaction between EuCl₂ and 2,2′-bipyrimidine (bpm) in de-oxygenated water afforded a cationic molecular complex [EuCl(bpm) ₂(H₂O)₄][Cl]·H₂O (1). When performed in an organic solvent such as THF or methanol, the same reaction yielded a 3-dimensional coordination polymer of formula [EuCl ₂(bpm)(MeOH)_0.5]_∞ (2) in which both bpm and the chloride ions act as linkers between the Eu(II) ions. Upon replacing Cl^- by I^-, two coordination polymers of formula {[Eu(bpm)₂(H₂O)₃][I]₂·0.5bpm} _∞ (3) and {[Eu(I)(bpm)(MeOH)][I]}_∞ (4) were obtained from reaction in water and methanol, respectively. All these compounds were characterized by X-ray crystallography. Investigations of the magnetic properties revealed a weak antiferromagnetic coupling in 2, while 3 and 4 showed a weak ferromagnetic coupling at low temperature.

Original language	English
Pages (from-to)	9143-9145
Number of pages	3
Journal	Chemical Communications
Volume	46
Issue number	48
DOIs	https://doi.org/10.1039/c0cc02539a
Publication status	Published - 28 Dec 2010
Externally published	Yes

Access to Document

10.1039/c0cc02539a

Cite this

@article{c8e27b477bdf43d1bad100badaffb87d,

title = "Europium(ii) compounds: Simple synthesis of a molecular complex in water and coordination polymers with 2,2′-bipyrimidine-mediated ferromagnetic interactions",

abstract = "Reaction between EuCl2 and 2,2′-bipyrimidine (bpm) in de-oxygenated water afforded a cationic molecular complex [EuCl(bpm) 2(H2O)4][Cl]·H2O (1). When performed in an organic solvent such as THF or methanol, the same reaction yielded a 3-dimensional coordination polymer of formula [EuCl 2(bpm)(MeOH)0.5]∞ (2) in which both bpm and the chloride ions act as linkers between the Eu(II) ions. Upon replacing Cl- by I-, two coordination polymers of formula \{[Eu(bpm)2(H2O)3][I]2·0.5bpm\} ∞ (3) and \{[Eu(I)(bpm)(MeOH)][I]\}∞ (4) were obtained from reaction in water and methanol, respectively. All these compounds were characterized by X-ray crystallography. Investigations of the magnetic properties revealed a weak antiferromagnetic coupling in 2, while 3 and 4 showed a weak ferromagnetic coupling at low temperature.",

author = "Ga{\"e}l Zucchi and Pierre Thu{\'e}ry and Eric Rivi{\`e}re and Michel Ephritikhine",

year = "2010",

month = dec,

day = "28",

doi = "10.1039/c0cc02539a",

language = "English",

volume = "46",

pages = "9143--9145",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "48",

}

TY - JOUR

T1 - Europium(ii) compounds

T2 - Simple synthesis of a molecular complex in water and coordination polymers with 2,2′-bipyrimidine-mediated ferromagnetic interactions

AU - Zucchi, Gaël

AU - Thuéry, Pierre

AU - Rivière, Eric

AU - Ephritikhine, Michel

PY - 2010/12/28

Y1 - 2010/12/28

N2 - Reaction between EuCl2 and 2,2′-bipyrimidine (bpm) in de-oxygenated water afforded a cationic molecular complex [EuCl(bpm) 2(H2O)4][Cl]·H2O (1). When performed in an organic solvent such as THF or methanol, the same reaction yielded a 3-dimensional coordination polymer of formula [EuCl 2(bpm)(MeOH)0.5]∞ (2) in which both bpm and the chloride ions act as linkers between the Eu(II) ions. Upon replacing Cl- by I-, two coordination polymers of formula {[Eu(bpm)2(H2O)3][I]2·0.5bpm} ∞ (3) and {[Eu(I)(bpm)(MeOH)][I]}∞ (4) were obtained from reaction in water and methanol, respectively. All these compounds were characterized by X-ray crystallography. Investigations of the magnetic properties revealed a weak antiferromagnetic coupling in 2, while 3 and 4 showed a weak ferromagnetic coupling at low temperature.

AB - Reaction between EuCl2 and 2,2′-bipyrimidine (bpm) in de-oxygenated water afforded a cationic molecular complex [EuCl(bpm) 2(H2O)4][Cl]·H2O (1). When performed in an organic solvent such as THF or methanol, the same reaction yielded a 3-dimensional coordination polymer of formula [EuCl 2(bpm)(MeOH)0.5]∞ (2) in which both bpm and the chloride ions act as linkers between the Eu(II) ions. Upon replacing Cl- by I-, two coordination polymers of formula {[Eu(bpm)2(H2O)3][I]2·0.5bpm} ∞ (3) and {[Eu(I)(bpm)(MeOH)][I]}∞ (4) were obtained from reaction in water and methanol, respectively. All these compounds were characterized by X-ray crystallography. Investigations of the magnetic properties revealed a weak antiferromagnetic coupling in 2, while 3 and 4 showed a weak ferromagnetic coupling at low temperature.

U2 - 10.1039/c0cc02539a

DO - 10.1039/c0cc02539a

M3 - Article

AN - SCOPUS:78649666301

SN - 1359-7345

VL - 46

SP - 9143

EP - 9145

JO - Chemical Communications

JF - Chemical Communications

IS - 48

ER -

Europium(ii) compounds: Simple synthesis of a molecular complex in water and coordination polymers with 2,2′-bipyrimidine-mediated ferromagnetic interactions

Abstract

Access to Document

Fingerprint

Cite this