2014
DOI: 10.1021/cg500039y
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Diverse Supramolecular Architectures Having Well-Defined Void Spaces Formed from a Pseudorotaxane Cation: Influential Role of Metal Dithiolate Coordination Complex Anions

Abstract: This paper describes the influence of a group of classical inorganic coordination complex anions on assembling a particular pseudorotaxane cation (the crown ether, dibenzo-24-crown-8 threaded by an axle, 1,2-bis(4,4′-bipyridinium) ethane) resulting in a series of supramolecular ion pair compounds, namely,(5) of varying dimensions in terms of their topology; dithiolene = mnt 2− (1,2-dicyanoethylenedithiolate) and dmit 2− (1,3-dithiole-2-thione-4,5-dithiolate). The shapes of supramolecular framework void spaces … Show more

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Cited by 12 publications
(5 citation statements)
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“…PFC-8 leaves a net positive charge on metal nodes and attracts Clcounterions in channels for charge balance. Zn-S•TA, composed of anionic complex and ammonium counterions [31][32][33], was chosen as an additive to replace Clions inside pores with Zn-S 2ions through an ion-exchange method. The replacement was conducted by immersing PFC-8 in Zn-S•TA solution for 18 hours at room temperature (25 °C) (see Figure S1).…”
Section: Resultsmentioning
confidence: 99%
“…PFC-8 leaves a net positive charge on metal nodes and attracts Clcounterions in channels for charge balance. Zn-S•TA, composed of anionic complex and ammonium counterions [31][32][33], was chosen as an additive to replace Clions inside pores with Zn-S 2ions through an ion-exchange method. The replacement was conducted by immersing PFC-8 in Zn-S•TA solution for 18 hours at room temperature (25 °C) (see Figure S1).…”
Section: Resultsmentioning
confidence: 99%
“…Bis­(dithiolate)­M­(II) coordination complex anions belong to a well-known class of inorganic compounds, that are important in the context of bioinorganic chemistry, materials science, optics, laser applications, and catalysis. We , and others have recently introduced their importance in supramolecular chemistry. Three organic benzimidazolium cations, namely, [Bz,H-BzBimy] + , [Bz,NO 2 -BzBimy] + , and [Bz,Br-BzBimy] + , described in this work, can exist either in syn conformation or in anti conformation.…”
Section: Summary: Concluding Remarksmentioning
confidence: 99%
“…Hence, the conformation control of flexible molecules in a supramolecular assembly or in coordination networks is an important issue to contemporary researchers. We have reported important factors that affect the conformational modulation of flexible ligands in the self-assembly processes leading to coordination polymers to address the mechanistic aspects of self-assembly of metal carboxylates. We have also emphasized the importance of supramolecular interactions, exerted by metal bis­(1,2-dithiolate) complexes (that have received enormous attention because of their importance as conducting and magnetic materials, nonlinear optics, , NIR dyes, catalysts, and red-ox active materials), in assembling a pseudorotaxane into diverse supramolecular architectures having well-defined void spaces, the shape and size of which depend on the particular metal bis­(1,2-dithiolate) complex, used in the relevant synthesis . In an another instance, we have described how supramolecular interactions between an alkyl imidazolium derivative as a cation and a metal bis­(1,2-dithiolate) complex anion play a key role in controlling the geometry in terms of degree of deviation (whether it will be square planar or distorted square planar) of the copper metal ion in the specific copper bis­(1,2-dithiolate) complex anion .…”
Section: Introductionmentioning
confidence: 99%
“…Pseudo[n]rotaxanes (n ≥ 2), a lasso-type of complexes, are two molecules or multiple molecules mechanically interlocked. Due to the characteristic topological structures and great application in molecular switches [1,2,3] and molecular muscles [4,5,6], mechanically interlocked molecules, especially pseudo[1]rotaxanes (one of lasso-type self-inclusion complexes formed by intramolecular interaction) using traditional macrocycles, such as crown ethers and calixarenes, as their own wheels [7,8,9,10], have become a central topic in supramolecular chemistry. Pillar[n]arenes, a new generation of macrocyclic hosts having a pillar architecture and π-rich cavities, have been widely applied in drug delivery [11,12,13,14], chemosensors [15,16,17], materials [18,19,20], and supramolecular polymers [21,22,23].…”
Section: Introductionmentioning
confidence: 99%