Substitutional Lability of Diphosphine Ligands in Tetrahedral Iron(II) Chloro Complexes

被引：14

作者：

Langer, Robert ^{[1
,2
]}

Boenisch, Friedrich ^{[1
]}

Maser, Leon ^{[1
]}

Pietzonka, Clemens ^{[1
]}

Vondung, Lisa ^{[1
]}

Zimmermann, Thomas Philipp ^{[1
]}

机构：

[1] Univ Marburg, Dept Chem, D-35043 Marburg, Germany

[2] SYSU, LIFM, Guangzhou 510275, Guangdong, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 01期

关键词：

Iron; P ligands; Coordination modes; N ligands; Structure elucidation; CRYSTAL X-RAY; ASYMMETRIC HYDROGENATION; MOLECULAR-STRUCTURE; CATALYTIC-HYDROGENATION; SPIN-CROSSOVER; PHOSPHINE COMPLEXES; MAGNETIC-PROPERTIES; EFFICIENT CATALYST; PHASE-TRANSITIONS; RU-II;

D O I：

10.1002/ejic.201402859

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of iron(II) dihalogenide complexes with two different bisphosphinoethane ligands is reported. In the case of 1,2-bis(diphenylphosphanyl)ethane (dppe), depending on the stoichiometry, the tetrahedral [(-dppe)FeCl2](n) and octahedral trans-[(dppe)(2)FeCl2] complexes are formed. The polymeric complex [(-dppe)FeCl2](n), with iron in a tetrahedral environment, preferentially reacts with chelating amines to give the octahedral diphosphine complex, trans-[(dppe)(2)FeCl2], and different octahedral amine complexes. With the sterically more demanding 1,2-bis(diisopropylphosphanyl)ethane (dippe), the monomeric and tetrahedral halogen complexes [(dippe)FeX2] are exclusively obtained (X = Cl, Br). These complexes react with chelating amines in a similar manner, to give free ligand and the corresponding octahedral amine complex. The present results suggest that the diphosphines in the investigated iron(II) complexes are bound too weakly to form productive catalyst precursors.

引用

页码：141 / 148

页数：8

共 109 条

[1] Formation of vinyl and dithioformate metallacycles by insertion of an ester-functionalized alkyne or carbon disulfide into an Fe-H bond: Crystal structure of cis-[Fe(CH=CHCOOMe)(Ph(2)PCH(2)CH(2)PPh(2))(2)][BF4] [J].

Almeida, SSP ;

Duarte, MT ;

Ribeiro, LMD ;

Gormley, F ;

Galvao, AM ;

DaSilva, JJRF ;

Pombeiro, AJL .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 524 (1-2) :63-66

[2] Cyanide as a versatile Lewis base ligand at a dinitrogen-binding iron(II) centre: mono- and heteronuclear adducts [J].

Almeida, SSPR ;

da Silva, MFCG ;

Jerzykiewicz, LB ;

Sobota, P ;

Pombeiro, AJL .

INORGANICA CHIMICA ACTA, 2003, 356 :259-266

[3] Reactions of a cyanosilane with an iron(II) centre.: Synthesis and crystal structure of the isocyanotriphenylborate complex trans-[FeH(CNBPh3)(Ph2PCH2CH2PPh2)2] and anodic deprotonation of the hydrogen isocyanide (CNH) analogue [J].

Almeida, SSPR ;

da Silva, MFCG ;

da Silva, JJRF ;

Pombeiro, AJL .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1999, (03) :467-472

[4]

[Anonymous], 1999, X SHAPE V 1 06 CRYST

[5]

Aresta M., 1971, Inorganica Chimica Acta, V5, P115

[6] A Square-Planar Ruthenium(II) Complex with a Low-Spin Configuration [J].

Askevold, Bjorn ;

Khusniyarov, Marat M. ;

Herdtweck, Eberhardt ;

Meyer, Karsten ;

Schneider, Sven .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (41) :7566-7569

[7]

Baeg J. Y., 2002, J KOREAN CHEM SOC, V46, P427

[8] MOSSBAUER AND PREPARATIVE STUDIES OF SOME IRON(II) COMPLEXES OF DIPHOSPHINES [J].

BARCLAY, JE ;

LEIGH, GJ ;

HOULTON, A ;

SILVER, J .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1988, (11) :2865-2870

[9] Low-valent α-diimine iron complexes for catalytic olefin hydrogenation [J].

Bart, SC ;

Hawrelak, EJ ;

Lobkovsky, E ;

Chirik, PJ .

ORGANOMETALLICS, 2005, 24 (23) :5518-5527

[10] Preparation and molecular and electronic structures of iron(0) dinitrogen and silane complexes and their application to catalytic hydrogenation and hydrosilation [J].

Bart, SC ;

Lobkovsky, E ;

Chirik, PJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (42) :13794-13807

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