Unexpected isomerism in "[Pd(2,9-dimethylphenanthroline)X2]" (X = Cl, Br, I) complexes: a neutral and an ionic form exist

被引：36

作者：

Rimoldi, Martino ^{[1
,2
]}

Ragaini, Fabio ^{[1
,2
]}

Gallo, Emma ^{[1
,2
]}

Ferretti, Francesco ^{[1
,2
]}

Macchi, Piero ^{[3
]}

Casati, Nicola ^{[1
,2
,4
]}

机构：

[1] Univ Milan, Dipartimento Chim Inorgan Metallorgan & Analit La, I-20133 Milan, Italy

[2] ISTM CNR, I-20133 Milan, Italy

[3] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland

[4] Univ Milan, Dipartimento Chim Strutturale & Stereochim Inorga, I-20133 Milan, Italy

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 13期

关键词：

CATALYZED AEROBIC OXIDATION; HETEROCYCLIC-COMPOUNDS SERIES; PALLADIUM(II) COMPLEXES; PLATINUM(II) COMPLEXES; HYDROGEN-PEROXIDE; CARBON-MONOXIDE; CRYSTAL-STRUCTURES; AQUEOUS SOLVENTS; HECK REACTION; LIGANDS;

D O I：

10.1039/c2dt11979j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Complexes of composition "[Pd(2,9-dimethylphenanthroline)X-2]" (X = Cl, Br, I) have long been known and they are used as precursors for the synthesis of other derivatives or as catalysts. In the previous literature, they have invariably been described as neutral square planar complexes, but we have found that a second ionic isomer also exists, having composition [Pd(Neoc)(2)X](2)[Pd2X6], and that the formation of this isomer occurs under a wider range of conditions than that of the neutral one. Retrospectively, the ionic isomer had surely been obtained in most previous reports even if formation of the neutral one was claimed.

引用

页码：3648 / 3658

页数：11

共 62 条

[1] 5-COORDINATE ALKENE COMPLEXES OF PALLADIUM(II) AND PLATINUM(II) [J].

ALBANO, VG ;

NATILE, G ;

PANUNZI, A .

COORDINATION CHEMISTRY REVIEWS, 1994, 133 :67-114

[2] Dioxygen-promoted regioselective oxidative Heck arylations of electron-rich olefins with arylboronic acids [J].

Andappan, MMS ;

Nilsson, P ;

von Schenck, H ;

Larhed, M .

JOURNAL OF ORGANIC CHEMISTRY, 2004, 69 (16) :5212-5218

[3] The first ligand-modulated oxidative Heck vinylation. Efficient catalysis with molecular oxygen as palladium(0) oxidant [J].

Andappan, MMS ;

Nilsson, P ;

Larhed, M .

CHEMICAL COMMUNICATIONS, 2004, (02) :218-219

[4] PYRIDINE-DERIVATIVES AS COMPLEXING AGENTS .13. THE STABILITY OF THE PALLADIUM(II) COMPLEXES WITH PYRIDINE, 2,2'-BIPYRIDYL, AND 1,10-PHENANTHROLINE [J].

ANDEREGG, G ;

WANNER, H .

INORGANICA CHIMICA ACTA, 1986, 113 (02) :101-108

[5] Palladium-neocuproine catalyzed aerobic oxidation of alcohols in aqueous solvents [J].

Arends, IWCE ;

ten Brink, GJ ;

Sheldon, RA .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 251 (1-2) :246-254

[6] Synthesis and solid state and solution characterization of mono- and Di-(η1-C) carbamoyl-palladium complexes.: New efficient palladium-catalyzed routes to carbamoyl chlorides:: Key intermediates to isocyanates, carbamic esters, and ureas [J].

Aresta, M ;

Gianneccaro, P ;

Tommasi, I ;

Dibenedetto, A ;

Lanfredi, AMM ;

Ugozzoli, F .

ORGANOMETALLICS, 2000, 19 (19) :3879-3889

[7]

Bianchi D, 1999, ANGEW CHEM INT EDIT, V38, P706, DOI 10.1002/(SICI)1521-3773(19990301)38:5<706::AID-ANIE706>3.0.CO

[8]

2-G

[9] Taking too many precautions in making a catalyst is never a loss of time: A lesson we learned at our own expense [J].

Bianchini, C ;

Meli, A ;

Oberhauser, W .

ORGANOMETALLICS, 2003, 22 (21) :4281-4285

[10] CHELATE COMPLEXES OF 1,10-PHENANTHROLINE AND RELATED COMPOUNDS [J].

BRANDT, WW ;

DWYER, FP ;

GYARFAS, EC .

CHEMICAL REVIEWS, 1954, 54 (06) :959-1017

← 1 2 3 4 5 6 7 →