Dalton Transactions

doi: 10.1039/C5DT90050Fpmid: N/A

doi: 10.1039/c5dt90050fpmid: N/A

doi: 10.1039/c5dt90051dpmid: N/A

doi: 10.1039/C5DT90051Dpmid: N/A

doi: 10.1039/C5DT90052Bpmid: N/A

doi: 10.1039/c5dt90052bpmid: N/A

Santi, Saverio; Bisello, Annalisa; Cardena, Roberta; Donoli, Alessandro

doi: 10.1039/c4dt03581jpmid: 25666292

In this review, the properties of the most significant examples of multi(ferrocenyl) cations containing a number of ferrocenyl units from two to six are discussed and the results are compared with the outcomes of some of our recent studies on conjugated ferrocenyl complexes, in order to give an overview of how the nature of the bridging ligand, the distance between the redox-active centres, and the medium affect the electronic and electrostatic properties of the molecules.

Yin, Zheng; Zhou, Yan-Ling; Zeng, Ming-Hua; Kurmoo, Mohamedally

doi: 10.1039/c4dt04030apmid: 25687325

The research on metal–organic frameworks (MOFs) has been developing at an extraordinary pace in its two decades of existence, as judged by the exponential growth of novel structures and the constant expansion of its applicability and research scope. A major part of the research and its success are due to the vital role of the concept of mixed organic ligands in the design, tuning and functions. This perspective, therefore, reviews the recent advances in MOFs based on this concept, which is generally based on employing a small polydentate ligand (here labelled as “nodal ligand”) to form either clusters, rods or layers, which are then connected by a second ditopic linker ligand to form the framework. The structures of the materials can be grouped into the following three categories: layer-spacer (usually known as pillared-layer), rod-spacer, and cluster-spacer based MOFs. Depending on the size and geometry of the spacer ligands, interpenetrations of frameworks are occasionally found. These MOFs show a wide range of properties such as (a) crystal-to-crystal transformations upon solvent modifications, post-synthetic metal exchange or ligand reactions, (b) gas sorption, solvent selectivity and purification, (c) specific catalysis, (d) optical properties including colour change, luminescence, non-linear optic, (e) short- and long range magnetic ordering, metamagnetism and reversible ground-state modifications and (f) drug and iodine carriers with controlled release. In the following, we will highlight the importance of the above concept in the design, tuning, and functions of a selection of existing MOFs having mixed organic ligands and their associated structures and properties. The results obtained so far using this concept look very promising for fine-tuning the pore size and shape for selective adsorption and specificity in catalytic reactions, which appears to be one way to propel the advances in the application and commercialization of MOFs.

Ma, Xiaozhou; Xu, Na; Gao, Chen; Li, Leilei; Wang, Bingwu; Shi, Wei; Cheng, Peng

doi: 10.1039/c5dt00185dpmid: 25697239

A novel infinite lanthanide hydroxide ribbon was successfully assembled in a 2D network, which exhibits slow relaxation of the magnetization at low temperature.

Liu, Zheng-Yu; Zhang, Hong-Yun; Yang, En-Cui; Liu, Zhong-Yi; Zhao, Xiao-Jun

doi: 10.1039/c4dt04020apmid: 25705976

A (3,6)-connected layer with an adeninate nucleobase-derived CuII7 disc was reported, in which six spin-parallel CuII ions in the exterior of the disc are antiferromagnetically coupled with the central one to give an S = 5/2 ground-state.