Confined Metallophilicity within a Coordination Prism

Gao, Guofen; Li, Mian; Zhan, Shun‐Ze; Lv, Zhi; Chen, Guanghui; Li, Dan

doi:10.1002/chem.201100081

Cited by 61 publications

(50 citation statements)

References 32 publications

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“…The emission band for 2 upon cooling become slightly narrower, but its emission maximum (around 588 nm, 150–10 K) shows neglectable change (Figure b). This phenomenon is similar to our previous report Cu 6 L 3 cage based on xylylene linkers, showing unchangeable emission maxima upon cooling. The emission band centred at 584 nm of 1 is quite close to the emission of 2 , suggesting that both emission bands probably arise from intermolecular electronic transitions.…”

Section: Resultssupporting

confidence: 92%

“…The emission lifetime measurements show the average lifetime of 1 and 2 are 11.51 and 11.05 μ s at 298 K (Table ), respectively, which indicate they probably emmit phosphorescence. On the other hand, their emission spectra are similar to that of previously reported CTCs based on Cu(I),, which dominated by intermolecular Cu⋅⋅⋅Cu interaction.…”

Section: Resultssupporting

confidence: 86%

“…Thiel reported a series of isostructural hexanuclear pyrazolate complexes and their luminescence properties. [18] At the same time, we also reported a hexanuclear Cu(I) prism constructed by two Cu 3 Pz 3 units and three semi-rigid xylylene bridges, which demonstrate the existence and the nature of metallophilicity within a confined space [19] However, these complexes' cavities are very small (ca. 3.70 to 3.95 Å , between two CTCs), which is difficultly used to encapsulate guest molecules.…”

Section: Introductionmentioning

confidence: 87%

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Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Shi

Zhang

Zhan

et al. 2019

Israel Journal of Chemistry

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A trigonal prismatic Cu6L3 coordination cage has been assembled from Cu(I) and semi‐rigid bipyrazolyl ligand. The X‐ray crystallography demonstrates that the cage has a cavity and can encapsulate the toluene as a guest, exhibiting thermochromism phenomenon. Empty cage can be obtained by expulsion of the guest through single crystal to single crystal transformation. After removed the guest, the empty cage shows a blue‐shifted emission (580 nm), in comparison to its parent cage (615 nm). The empty cage could further serve as a host to encapsulate other aromatic molecules (e. g. mesitylene), which shows new emission band. The trigonal prismatic Cu6L3 coordination cage provides a platform to make advanced luminescent materials.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 87%

See 1 more Smart Citation

Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Shi

Zhang

Zhan

et al. 2019

Israel Journal of Chemistry

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“…Li's group synthesized a [Cu 6 L 3 ] coordination prism cage using [Cu(I) 3 Pz 3 ] triangle constructing motif with the dianion L (H 2 L=p‐xylylene‐bis(3,5‐dimethyl)pyrazol‐4‐yl). Important intra‐ and inter‐metal‐metal bonding displayed by the distances of Cu(I)…Cu(I) ranging from 3.174 to 3.217 Å, 3.696 to 3.946 Å, respectively . Yang et al.…”

Section: Supramolecular Architectures With Di‐pyrazolesmentioning

confidence: 99%

From Metal‐Metal Bonding to Supra‐Metal‐Metal Bonding Directed Self‐Assembly: Supramolecular Architectures of Group 10 and 11 Metals with Ligands from Mono‐ to Poly‐Pyrazoles

2018

Israel Journal of Chemistry

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The supramolecular architectures of pyrazole ligands with polynuclear metal centers have established a wide variety of constructing motifs. This review focuses on the metal‐metal bonding and Supra‐Metal‐Metal Bonding directed self‐assembly of supramolecular architectures of pyrazole ligands ranging from simple mono‐pyrazoles and derivatives to bipyrazoles and polypyrazoles with group 10 and 11 elements. The utility of the constructing motifs (μ‐pyrazolato‐N,N′)2 doubly‐bridged dimetal corners in the metal‐metal‐bonding directed self‐assembly approaches with spontaneous deprotonation from bipyrazole to tripyrazole and tetrapyrazolyl calix[4]arene ligands, metallomacrocyclic and cage‐like complexes have been synthesized. The proton switching programmable self‐assembly strategy using pyrazole‐based bifunctional ligands has been developed by Yu. They have obtained organic homo‐ or hetero‐metallic supramolecular complexes from macrocycles, cages, to one dimensional polymers.

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“…As a type of ligand for metals, they have proven to be more versatile and flexible in construction of metallosupramolecular assemblies than pyrazole itself. Recent remarkable examples as such include a Cu 6 trigonal prismatic cage [3], a Cu 6 trigonal anti-prismatic cage [4], and a series of metallo-macrocycles based on dipalladium corners [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and crystal structures of silver(I) and copper(II) complexes with p-xylylene-bridged bipyrazolyl ligands

Wang

Chen

Zhao

et al. 2011

Transition Met Chem

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Two semi-rigid bipyrazolyl ligands, namely 2,3,5,6-tetramethyl-1,4-bis[(3 0 ,5 0 -dimethyl-1H -pyrazol-4 0 -yl)methylene]benzene (H 2 L) and 2,3,5,6-tetramethyl-1,4-bis[(3 0 ,5 0 -diphenyl-1H -pyrazol-4 0 -yl)methylene]benzene (H 2 L 0 ), and their Ag(I) and Cu(II) complexes have been prepared and structurally characterized by means of X-ray analysis. In the structures of the metal complexes, namely [Ag 2 (H 2 L) 2 ](BF 4 ) 2 Á2H 2 O (1), [Ag(H 2 L)(NO 3 )] n (2), [Cu 2 (H 2 L) 4 (SO 4 ) 2 ]Á11H 2 O (3), and {[Ag(H 2 L 0 )]BF 4 } n (4), the bipyrazoles act as bridging ligands to connect two metal atoms. Complexes 2 and 4 exhibit 1-D polymeric structures, while 1 and 3 are discrete molecules with a rectangular dimer or tetragonal prismatic shapes, respectively. Two different conformations, namely cis and trans, have been observed for these bipyrazolyl ligands.

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Confined Metallophilicity within a Coordination Prism

Cited by 61 publications

References 32 publications

Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

From Metal‐Metal Bonding to Supra‐Metal‐Metal Bonding Directed Self‐Assembly: Supramolecular Architectures of Group 10 and 11 Metals with Ligands from Mono‐ to Poly‐Pyrazoles

Synthesis and crystal structures of silver(I) and copper(II) complexes with p-xylylene-bridged bipyrazolyl ligands

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Confined Metallophilicity within a Coordination Prism

Cited by 61 publications

References 32 publications

Trigonal Prismatic Cu6L3 Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Trigonal Prismatic Cu6L3 Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

From Metal‐Metal Bonding to Supra‐Metal‐Metal Bonding Directed Self‐Assembly: Supramolecular Architectures of Group 10 and 11 Metals with Ligands from Mono‐ to Poly‐Pyrazoles

Synthesis and crystal structures of silver(I) and copper(II) complexes with p-xylylene-bridged bipyrazolyl ligands

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Product

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Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence

Trigonal Prismatic Cu₆L₃ Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence