Ruthenium complexes with bridging dicarboxylate ligands were combined with 1,2-di-4-pyridylethylene (dpe), 2,4,6-tri-4-pyridyltriazine (4-tpt), or 2,4,6-tri-3-pyridyltriazine (3-tpt) to give a tetranuclearrectangle or hexanuclear coordination cages. The cages display a trigonal-prismatic geometry, as evidenced by single-crystal X-ray crystallography. The 4-tpt-based cages are able to encapsulate polyaromatic
Rational Design of Polynuclear Organometallic Assemblies from a Simple Heteromultifunctional Ligand
作者:Long Zhang、Yue-Jian Lin、Zhen-Hua Li、Guo-Xin Jin
DOI:10.1021/jacs.5b08826
日期:2015.10.28
In modern coordination chemistry, supramolecular coordination complexes take advantage of ligand design to control the shapes and sizes of such architectures. Here we describe how to utilize starting building blocks and a multifunctional ligand to rationallydesign and synthesize different types of discrete assemblies. Using a hydroxamate ligand featuring two pair of chelating sites together with half-sandwich
One-step quantitative self-assembly of aromatic towers consisting of seven to nine discretelystackedaromatic rings is achieved from 25-27 multicomponents via the interpenetration of two identical coordinationcages.
Neutral, stable and luminescent metallacycles decorated with furan units, a 2D rectangle with four furans and a 3D trigonal prism with six furans, were synthesized from readily accessible starting materials through a fac-Re(CO)3-directed approach.
[EN] ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMENT, AND DIMMING ELEMENT<br/>[FR] COMPOSÉ ÉLECTROCHROMIQUE, COMPOSITION ÉLECTROCHROMIQUE, ÉLÉMENT D'AFFICHAGE ET ÉLÉMENT DE GRADATION
申请人:RICOH CO LTD
公开号:WO2014208775A1
公开(公告)日:2014-12-31
An electrochromic compound, represented by the following general formula (I): where X1 to X4 are each a substituent represented by the following general formula (II), an alkyl group that may contain a functional group, an aromatic hydrocarbon group that may contain a functional group, or a hydrogen atom, and at least two selected from X1 to X4 are the substituents represented by the general formula (II): where R1 to R8 are each independently a hydrogen atom, or a monovalent group that may contain a substituent; B is a substituted or unsubstituted monovalent group that may contain a functional group; A- is a monovalent anion; and m is any of 0 to 3, and R1 to R8, B, and m may each independently be different when a plurality of the substituents represented by the general formula (II) are present.