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8,221 Newest Publications in crystengcomm

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Terbium complexes encapsulated in hierarchically organized hybrid MOF particles toward stable luminescence in aqueous media

03-Jul-2018 | Yiquan Wang; Wei Zhou; Feng Chen; Kaiyao Sun; Jixi Zhang; Ezgi Özliseli; Jessica M. Rosenholm, CrystEngComm, 2018

To exert the respective advantages of lanthanide complexes and metal–organic frameworks (MOFs) in luminescence and encapsulation, hierarchically organized hybrid MOF particles were developed to meet the requirements of stable luminescence for applications in biological media. Anionic terbium (Tb) ...

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Direct water-based synthesis and characterization of new Zr/Hf-MOFs with dodecanuclear clusters as IBU

03-Jul-2018 | Steve Waitschat; Helge Reinsch; Merve Arpacioglu; Norbert Stock, CrystEngComm, 2018

Two new metal-organic framework compounds of composition [M12(μ3-O)8(μ3-OH)8(μ-OH)6(OH)6(H2O)6(APDC)6], with M = Zr and Hf denoted as M-CAU-39, containing the azopyridinedicarboxylate ion (APDC2-) as a new linker, were obtained by a water based synthesis. The crystal structure was determined from ...

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One-step surfactant-free synthesis of KSc2F7 microcrystals: controllable phases, rich morphologies and multicolor down conversion luminescence properties

03-Jul-2018 | Jie Xiong; Jie Yu; Yufeng Zhang; Wenpeng Xia; Shanshan Hu; Yanfei Zhang; Jun Yang, CrystEngComm, 2018

Homogeneous KSc2F7 microcrystals with controlled and abundant morphologies were prepared by a one-step hydrothermal route without employing any templates or surfactants. Particularly, uniform and well-defined KSc2F7 crystals with rod, sheet, flower-like, thin rectangular, xylitol-like and thin ...

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Controlled morphology of ZnSe nanostructures by varying Zn/Se molar ratio: The effects of different morphologies on optical properties and photocatalytic performance

03-Jul-2018 | Mohammad Bigdeli Tabar; S. M. Elahi; Mahmood Ghoranneviss; Ramin Yousefi, CrystEngComm, 2018

The effects of Zn/Se molar ratios on the morphology and photocatalytic performance of ZnSe nanostructures, which were synthesized by a co-precipitation method, were investigated. To intensively investigate the effects of the Zn/Se ratios, we performed a series of controllable experiments with ...

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Anodic dissolution growth of metal–organic framework HKUST-1 monitored via in situ electrochemical atomic force microscopy

03-Jul-2018 | Stephen D. Worrall; Mark A. Bissett; Martin P. Attfield; Robert A. W. Dryfe, CrystEngComm, 2018

In situ electrochemical atomic force microscopy (ec-AFM) is utilised for the first time to probe the initial stages of metal–organic framework (MOF) coating growth via anodic dissolution. Using the example of the Cu MOF HKUST-1, real time surface analysis is obtained that supports and verifies ...

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On Mechanisms for Mesocrystal Formation: Magnesium Ions and Water Environments Regulate Crystallization of Amorphous Minerals

03-Jul-2018 | Yu-Chieh Huang; Maxim Gindele; Jennifer Knaus; Ashit Rao; Denis Gebauer, CrystEngComm, 2018

Nature produces hierarchical, functional materials by shaping amorphous mineral precursors under physiological conditions. Although biominerals inspire the architectures of synthetic counterparts, the biogenic phase transformations yielding precise crystalline forms, polymorphs and structures are ...

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New sarcosine–metal halide complexes related to ferroelectric TSCC

03-Jul-2018 | Rebecca Clulow; Philip Lightfoot, CrystEngComm, 2018

There are relatively few sarcosine metal halide complexes. Of these, tris sarcosine calcium chloride (TSCC) ((C3NO2H7)3CaCl2) stands out as an unusual example of a molecular ferroelectric. Here we report the syntheses of eight new related sarcosine–metal halide complexes by slow evaporation. The ...

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High contrast mechanochromic and thermochromic luminescence switching by a deep red emitting organic crystal

03-Jul-2018 | Manas K. Panda; Nayana Ravi; Asha P.; A. P Prakasham, CrystEngComm, 2018

In this study, we report a deep red emissive organic crystal that displays high contrast fluorescence switching under mechanical- and thermal stimulation. Upon mechanical grinding, the pristine red emissive crystals of 1R (λem = 667 nm) transformed to green emissive crystalline powder (λem = 550 ...

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Room Temperature Synthesis of Aqueous Soluble Covellite CuS Nanocrystals with High Photothermal Conversion

03-Jul-2018 | Yi XIE; Wenhui Chen; Chao Hu; Tao Zeng; Huirong Jiang; Fen Qiao; Jiani Gu; Xunyi Dong; Xiujian Zhao, CrystEngComm, 2018

Near-infrared plasmonic binary copper-based chalcogenides have found promising applications in photovoltaics and photothermal therapy. Here, we report a facile synthetic protocol for aqueous soluble covellite (CuS) nanocrystals (NCs) at room temperature. In contrast to previously reported routes, ...

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Development of Trapezoidal MgO Catalyst for High-Efficient Transesterification of Glycerol and Dimethyl Carbonate

03-Jul-2018 | Zongquan Bai; Yajun Zheng; Weiwei Han; Yue Ji; Tianlan Yan; Ying Tang; Gang Chen; Zhiping Zhang, CrystEngComm, 2018

A series of micro-sized MgO with various morphologies have been prepared by varying the reaction temperature and stirring time during precipitation, and were investigated for the production of glycerol carbonate from the transesterification of glycerol with dimethyl carbonate. In contrast to ...

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