Synthesis and characterization of rhenium(III) and (V) pyridylimidazole complexes

被引：40

作者：

Gerber, TIA ^{[1
]}

Hosten, E

Mayer, P

Tshentu, ZR

机构：

[1] Univ Port Elizabeth, Dept Chem, ZA-6000 Port Elizabeth, South Africa

[2] Univ Munich, Dept Chem, D-81377 Munich, Germany

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2006年 / 59卷 / 03期

关键词：

rhenium(III); rhenium(V); oxo-bridge; crystal structure; bidentate N; N;

D O I：

10.1080/00958970500069063

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of trans-[ReOCl3(PPh3)(2)] with 2-(2'-pyridyl) imidazole (pimH) in methanol led to the isolation of the rhenium(III) salt [ReCl2(pimH)(PPh3)(2)](ReO4) (1). However, with 2-(2'-pyridyl)- 1-methylimidazole (pimMe) as ligand, the complex [ReCl3(pimMe)(PPh3)] (2) was obtained. The monooxorhenium(V) complexes [ReOCl3(pimR)] (R = H, Me) could only be prepared by the reduction of [ReO4](-) with an equimolar amount of PPh3 in the presence of pimR and hydrochloric acid in acetic acid. With four equivalents of PPh3, compounds 1 and 2 were obtained. Using (n-Bu4N)[ReOCl4] as starting material, the mu-oxo dimers [Re2O3(pimR)(2)Cl-4] were isolated as the only products. These new compounds have been characterized by X-ray crystallography, (HNMR)-H-1 and IR spectroscopy. In 1 the [ReO4](-) counterion is tightly associated with the cationic complex through N-(HReO3-)-Re-... hydrogen bonding. Despite being paramagnetic, (HNMR)-H-1 spectra for 1 and 2 could be fully assigned.

引用

页码：243 / 253

页数：11

共 20 条

[11] USE OF CONDUCTIVITY MEASUREMENTS IN ORGANIC SOLVENTS FOR CHARACTERISATION OF COORDINATION COMPOUNDS [J].

GEARY, WJ .

COORDINATION CHEMISTRY REVIEWS, 1971, 7 (01) :81-&

[12] Rhenium(V) complexes with bidentate N,O-donor imidazole derivatives [J].

Gerber, TIA ;

Tshentu, ZR ;

Garcia-Granda, S ;

Mayer, P .

JOURNAL OF COORDINATION CHEMISTRY, 2003, 56 (12) :1093-1103

[13] Synthesis and structural characterization of dinuclear oxorhenium(V) complexes with bidentate imidazole derivatives [J].

Gerber, TIA ;

Hosten, E ;

Tshentu, ZR ;

Mayer, P ;

Pérez-Carreño, E ;

Garcia-Granda, S ;

Du Preez, JGH .

JOURNAL OF COORDINATION CHEMISTRY, 2003, 56 (12) :1063-1074

[14] Synthesis and structural characterization of cationic octahedral oxorhenium(V) complexes with bidentate imidazole derivatives [J].

Gerber, TIA ;

Tshentu, ZR ;

Mayer, P .

JOURNAL OF COORDINATION CHEMISTRY, 2003, 56 (16) :1357-1366

[15] CARDIOTONIC AGENTS - SYNTHESIS AND CARDIOVASCULAR PROPERTIES OF NOVEL 2-ARYLBENZIMIDAZOLES AND AZABENZIMIDAZOLES [J].

GUNGOR, T ;

FOUQUET, A ;

TEULON, JM ;

PROVOST, D ;

CAZES, M ;

CLOAREC, A .

JOURNAL OF MEDICINAL CHEMISTRY, 1992, 35 (23) :4455-4463

[16] SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF SULFAMATE DERIVATIVES AS TOPICAL ANTIGLAUCOMA AGENTS [J].

LO, YS ;

NOLAN, JC ;

MAREN, TH ;

WELSTEAD, WJ ;

GRIPSHOVER, DF ;

SHAMBLEE, DA .

JOURNAL OF MEDICINAL CHEMISTRY, 1992, 35 (26) :4790-4794

[17] Novel AMPA receptor antagonists: Synthesis and structure-activity relationships of 1-hydroxy-7-(1H-imidazol-1-yl)-6-nitro-2,3(1H,4H)-quinoxalinedione and related compounds [J].

Ohmori, J ;

ShimizuSasamata, M ;

Okada, M ;

Sakamoto, S .

JOURNAL OF MEDICINAL CHEMISTRY, 1996, 39 (20) :3971-3979

[18] H-1 NMR study of paramagnetic rhenium(III) monomers with nitrogen heterocycles. Crystal structures of ReCl3L2(PPh3) complexes (L=pyridine, 3-picoline, and 1-methylimidazole) [J].

Pearson, C ;

Beauchamp, AL .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1997, 75 (02) :220-231

[19] PREPARATION AND REACTIONS OF TRIHALOGENO(ALKANONITRILE)BIS(TRIPHENYLPHOSPHINE)RHENIUM(3) COMPLEXES [J].

ROUSCHIAS, G ;

WILKINSON, G .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1967, (06) :993-+

[20]

Sheldrick G.M., 1993, PROGRAM CRYSTAL STRU

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