Gd<sub>26</sub>Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins

Sen, Rahul; Hazra, Dipak Kumar; Mukherjee, Monika; Koner, Subratanath

doi:10.1002/ejic.201100118

Cited by 43 publications

(9 citation statements)

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“…These catalysts present over 90% conversion for styrene oxidation, but the selectivity of the epoxidation of styrene was low. [25][26][27][28] Based on the role of the reported copper(II) metal-organic framework [Cu(bipy)(H 2 btec)] ∞ as a catalyst for olefin oxidation, we now report the catalytic properties of another Cu-MOF, [Cu 2 (bipy) 2 (btec)] ∞ , which was also studied as a catalyst under mild reaction conditions in the oxidation of olefinic substrates. A comparison of both catalytic systems is made for the same reaction.…”

Section: Introductionmentioning

confidence: 99%

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

Cancino

Paredes-Garcı́a

Aguirre

et al. 2014

Catal. Sci. Technol.

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Section: Introductionmentioning

confidence: 99%

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

Cancino

Paredes-Garcı́a

Aguirre

et al. 2014

Catal. Sci. Technol.

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“…It is known that many methods such as in situ and template synthesis are being explored in the quest for high-nuclearity Gd III clusters . Especially, hydroxyl, carbonate, and other short bridging groups are usually introduced in situ by the addition of alkaline reactants or the decomposition of ligands and solvents .…”

mentioning

confidence: 99%

An Unprecedented Decanuclear Gd^III Cluster for Magnetic Refrigeration

et al. 2013

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“…As described above, small ligands like CO 3 , NO 3 , ox, and OAc are confirmed to be great auxiliary and supporting ligands in cooperation with linear ligands. In the nonlinear ligand systems, such examples can also be detected. − For a quick look at this point, only one representative example is given.…”

Section: Induced Aggregation and Synergistic Coordination By Nonlinea...mentioning

confidence: 99%

Induced Aggregation and Synergistic Coordination Strategy in Cluster Organic Architectures

Fang

Yang

2018

Acc. Chem. Res.

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Conspectus Developments in strategies for the synthesis of oxo–hydroxo lanthanide (Ln) clusters during the past few decades have resulted in abundant relevant crystalline materials that exhibit attractive structures and interesting properties. The combination of these oxo–hydroxo Ln clusters and organic ligands has led to the formation of new extended arrays of Ln cluster organic frameworks (LnCOFs). In contrast to metal–organic frameworks, the incorporation of particular characteristics of clusters provides the opportunity to develop performances not available in single-metal compounds. Even with steady advances in oxo–hydroxo Ln clusters, progress in LnCOFs is less developed. To obtain LnCOFs, one premise is to induce the oxophilic Ln ions undergoing aggregation. Meanwhile, the organic ligands should have extra coordination sites for further expansion. Multidentate organic ligands like pyrazinecarboxylic acid and pyridinecarboxylic acid containing O and N donors will meet these two requirements. Their carboxyl groups will induce the aggregation of Ln ions, while the N donors can serve as potential extension sites. To make more open frameworks or if the oxo–hydroxo Ln clusters fail to be congregated or connected, then a second ligand is necessary. The introduction of the suitable second ligand may occupy a partial coordination sphere of Ln ions and ultimately benefit the connection process. In this Account, we introduce the origin and evolution of the induced aggregation and synergistic coordination strategy. According to the attributes of the organic ligands in the documented LnCOFs, we classify them into linear and nonlinear groups in the second and third parts. From the aspect of ligand-induced aggregation, isonicotinic acid (HIN) and lengthened 4-(4-pyridyl)benzoic acid (HPBA) ligands as well as their nonlinear analogues are settled as typical models. From the aspect of synergistic coordination, chelating ligands like 1,2-benzenedicarboxylic acid (1,2-H2BDC) and acetic acid (HOAc) play significant roles. Moreover, three types of synergistic coordination are discussed in detail: synergistic coordination between two types of organic ligands, synergistic coordination between organic and inorganic ligands, and simultaneous synergistic coordination of aforementioned two types. From the aspect of LnCOF products, in addition to traditional pure LnCOFs, new types of heterometallic frameworks containing two types of cluster building units have been developed. Although this Account focuses on the nuclearity and coordination aspects of LnCOFs, we anticipate that it will stimulate more efforts in the further study of their properties beyond the exploratory synthesis. More importantly, synergistic coordination may be applied to other systems and inspire crystal design and targeted assembly of new functional materials.

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Gd₂₆Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins

Cited by 43 publications

References 84 publications

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

An Unprecedented Decanuclear Gd^III Cluster for Magnetic Refrigeration

Induced Aggregation and Synergistic Coordination Strategy in Cluster Organic Architectures

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Gd26Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins

Cited by 43 publications

References 84 publications

A reusable CuII based metal–organic framework as a catalyst for the oxidation of olefins

A reusable CuII based metal–organic framework as a catalyst for the oxidation of olefins

An Unprecedented Decanuclear GdIII Cluster for Magnetic Refrigeration

Induced Aggregation and Synergistic Coordination Strategy in Cluster Organic Architectures

Contact Info

Product

Resources

About

Gd₂₆Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

A reusable Cu^II based metal–organic framework as a catalyst for the oxidation of olefins

An Unprecedented Decanuclear Gd^III Cluster for Magnetic Refrigeration