Dinuclear Complexes Formed by Hydrogen Bonds: Synthesis, Structure and Magnetic and Electrochemical Properties
作者:Matteo Granelli、Alan M. Downward、Robin Huber、Laure Guénée、Céline Besnard、Karl W. Krämer、Silvio Decurtins、Shi-Xia Liu、Laurence K. Thompson、Alan F. Williams
DOI:10.1002/chem.201700591
日期:2017.5.23
The synthesis is reported of a series of homo‐ and hetero‐dinuclear octahedral complexes of the ligand 1, 1,2‐bis(1‐methyl‐benzimidazol‐2‐yl) ethanol, where the two metal centres are linked by hydrogen bonds between coordinated alcohols and coordinated alkoxides. Homonuclear divalent MIIMII, mixed‐valent MIIMIII and heteronuclear MIIM′III species are prepared. The complexes have been characterised
The Honeysuckle and the Bindweed Revisited: Synthesis and Stereochemistry of Extended Helical Structures from Coordination Complexes
作者:Alan M. Downward、Matteo Granelli、Celine Besnard、Laure Guénée、Alan F. Williams
DOI:10.1002/hlca.202300120
日期:2023.11
We report structural studies of a chiral tridentate ligand which forms helical cubanes with cobalt(II) and manganese(II). A quadruple helicate with (P)-chirality is obtained using a (S)-ligand with cobalt(II) but the ligand binds manganese(II) in one of two possible orientations and either (P)- or (M)-quadruple helicates may be observed for a given ligand enantiomer. The helicates may be linked into
我们报告了手性三齿配体的结构研究,该配体与钴(II)和锰(II)形成螺旋立方烷。具有 ( P ) -手性的四重螺旋是使用 ( S ) - 配体与钴 (II) 获得的,但配体以两种可能的方向之一结合锰 (II),并且是 ( P ) -或 ( M ) - 四重螺旋对于给定的配体对映异构体可以观察到。螺旋可以通过对硝基苯甲酸酯封端配体连接成延伸结构,该配体表现出与邻近复合物的堆积相互作用。对于钴(II),我们发现具有 ( M )-手性连接螺旋的延伸螺旋结构,其本身具有 ( P ) -手性。对于锰(II),我们观察到一种显着的结构,其中延伸的( M )-螺旋与延伸的( P ) -螺旋共存。
Helicity inversion and redox chemistry of chiral manganese(<scp>ii</scp>) cubanes
作者:Claire Deville、Matteo Granelli、Alan M. Downward、Céline Besnard、Laure Guenée、Alan F. Williams
DOI:10.1039/c4dt01590h
日期:——
N-methylation of a benzimidazole ligand switches the helicity of a tetranuclear manganese complex and changes the redox behavior.
对苯并咪唑配体进行N-甲基化可以改变四核锰配合物的螺旋性并改变氧化还原行为。
Coordination Chemistry of the Chiral, Facially Coordinating Tridentate Ligand 1,2‐Bis(benzimidazol‐2‐yl)ethanol with 3d Transition Metals
作者:Matteo Granelli、Alan M. Downward、Claire Deville、Alejandro Rodriguez Franco、Laure Guénée、Céline Besnard、Alan F. Williams
DOI:10.1002/ejic.201800778
日期:2018.10.9
1,2‐Bis(benzimidazol‐2‐yl)ethanol (1) and its bis‐N‐methylated derivative (2) act as chiral tridentate facially coordinating ligands capable of binding metals right across the d‐series. Octahedral complexes of divalent and trivalent metal ions are synthesised and characterised by X‐ray crystallography. Only two of the three possible diastereomers are observed in complexes of the type [M(1,2)2] and