Polymeric Rotaxane Constructed from the Inclusion Complex of β‐Cyclodextrin and 4,4′‐Dipyridine by Coordination with Nickel(<scp>II</scp>) Ions

Liu, Yu; Zhao, Yanli; Zhang, Heng Yi; Song, Hai Bin

doi:10.1002/anie.200351128

Cited by 145 publications

(56 citation statements)

References 33 publications

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“…The results of their further study on the size effect of the homologues of the a,x-diphenylpolyenes series, with two, three, and four double bonds, on the formation of nanotubes with c-CD indicated that the length of guest molecule is a key factor in the course of nanotube formation [5]. Liu et al focused on the artificial design of CD nanotubes induced by different CD derivatives and metal ions through the metal-ligand coordination [6][7][8].…”

Section: Introductionmentioning

confidence: 97%

Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Shi

Shen

2016

J Incl Phenom Macrocycl Chem

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Cyclodextrin-based nanotubes have been widely investigated and their secondary assembly (SA) behavior was found in our previous works. Here we report the self-assembly behavior between lithium bis(trifluoromethylsulfonyl)imide (LiNTf 2 ) and b-cyclodextrin (b-CD). Nanosheet structures with regular shape were obtained in the concentrated LiNTf 2 @b-CD solution. This phenomenon can be explained in terms of the SA mechanism of CD induced by the inorganic guest LiNTf 2 . LiNTf 2 and b-CD firstly forms nanotubes, and the nanotubes further stack with each other to form nanosheets by SA. We confirm that the hydrogen-bonding interaction contributes a lot to the formation of the nanotubes and their SA, and Li ? shows a special effect in the SA by inducing hydrogenbonding network between the adjacent b-CD to regularly pack the nanotubes.

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Section: Introductionmentioning

confidence: 97%

Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Shi

Shen

2016

J Incl Phenom Macrocycl Chem

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“…Some of the most common hosts are the cyclodextrins (CDs), which are cyclic oligosaccharides with hydrophobic cavities that can house nonpolar guests. They often lead to the formation of one-dimensional supramolecular inclusion polymers456789, typically pseudopolyrotaxanes, with a wide variety of organic101112, organometallic13141516171819 and inorganic20212223 guests. The structural compatibility between the CDs and the guests is the key preorganization parameter to consider when designing CD inclusion complexes, while hydrophobic interactions24, in addition to second-sphere coordination252627, provide major contributions to the stabilities of these complexes.…”

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confidence: 99%

Selective isolation of gold facilitated by second-sphere coordination with α-cyclodextrin

et al. 2013

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Gold recovery using environmentally benign chemistry is imperative from an environmental perspective. Here we report the spontaneous assembly of a one-dimensional supramolecular complex with an extended {[K(OH2)6][AuBr4](α-cyclodextrin)2}n chain superstructure formed during the rapid co-precipitation of α-cyclodextrin and KAuBr4 in water. This phase change is selective for this gold salt, even in the presence of other square-planar palladium and platinum complexes. From single-crystal X-ray analyses of six inclusion complexes between α-, β- and γ-cyclodextrins with KAuBr4 and KAuCl4, we hypothesize that a perfect match in molecular recognition between α-cyclodextrin and [AuBr4]− leads to a near-axial orientation of the ion with respect to the α-cyclodextrin channel, which facilitates a highly specific second-sphere coordination involving [AuBr4]− and [K(OH2)6]+ and drives the co-precipitation of the 1:2 adduct. This discovery heralds a green host–guest procedure for gold recovery from gold-bearing raw materials making use of α-cyclodextrin—an inexpensive and environmentally benign carbohydrate.

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“…The majority of inclusion compounds with metal complexes known to date exhibit an organometallic complex (i.e., metallocenes, olefin metal complexes, metal alkyls, and carbonyls) encapsulated inside the cavity of a macrocyclic host. Their molecular frameworks are constructed by strong interactions, such as covalent and coordination bonds [3][4][5][6], making them usable as coordination complexes and valuable to research. One significant use of such complexes is to employ them as single source precursors to prepare nano-structured or micro-structured materials.…”

Section: Introductionmentioning

confidence: 99%

Transformation of a zinc inclusion complex to wurtzite ZnS microflowers under solvothermal conditions

Mi¹,

Han²,

Li³

et al. 2010

Cryst. Res. Technol.

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Wurtzite zinc sulfide (ZnS) microflowers were synthesized successfully by a convenient solvothermal route in ethylene glycol (EG) and ethylenediamine (EN) using thiourea and zinc inclusion complex as startingby the reaction of zinc oxide (ZnO) and 4-Cl-3-NH 2 -C 6 H 3 SO 3 with the bridging ligand bipy under moderate conditions, in which bipy is 4,4'-bipyridine and 4-Cl-3-NH 2 C 6 H 3 SO 3 NH is 4-Chloro-3-aminobenzene sulfonic acid. The phase purity of bulk products was confirmed by powder X-ray diffraction and element analysis. The factors that might affect the purity of the ZnS product during the synthesis were discussed in detail. It was found that the products were significantly affected by the mixed solvents and the starting materials. X-ray single crystal diffraction, scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDS), and X-ray diffraction (XRD) were used to characterize the products.

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Polymeric Rotaxane Constructed from the Inclusion Complex of β‐Cyclodextrin and 4,4′‐Dipyridine by Coordination with Nickel(II) Ions

Cited by 145 publications

References 33 publications

Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Secondary assembly mechanism of cyclodextrin based on LiNTf2@β-CD system

Selective isolation of gold facilitated by second-sphere coordination with α-cyclodextrin

Transformation of a zinc inclusion complex to wurtzite ZnS microflowers under solvothermal conditions

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