40742-02-7Relevant articles and documents
A rare (3,12)-connected zirconium metal-organic framework with efficient iodine adsorption capacity and pH sensing
Guo, Bingbing,Li, Fugang,Wang, Chiming,Zhang, Liangliang,Sun, Daofeng
, p. 13173 - 13179 (2019)
We report here a stable rare zirconium metal-organic framework (MOF) exhibiting a sky topology, Zr6(μ3-O)4(μ3-OH)4(ITTC)4 (UPC-158) (where H3ITTC = 4,4′,4′′-(1H-imidazole-2,4,5-t
Effect of pH in the photoluminescence of a ruthenium complex featuring a derivative of the ligand pyrazine[2,3-f][1,10]-phenanthroline
Pizarro, Sebastián,Gallardo, Miguel,Leyton, Constanza,Castro, Eileen,Gajardo, Francisco,Delgadillo, Alvaro
, p. 61 - 65 (2015)
A new ruthenium complex, [Ru(bpy)2(dbe-ppl)](PF6)2 (bpy = 2,2′-bipyridine and dbe-ppl = dimethyl 4,4′-(pyrazino[2,3-f][1,10]phenanthroline-2,3-diyl)dibenzoate, has been synthesized and characterized by 1H NMR sp
Ultrastable Zirconium-Based Cationic Metal-Organic Frameworks for Perrhenate Removal from Wastewater
Zhang, Guoyu,Tan, Kui,Xian, Shikai,Xing, Kai,Sun, Hongbing,Hall, Gene,Li, Liangying,Li, Jing
, (2021/05/06)
The effective removal of radioactive 99TcO4- anion from nuclear wastewater remains a very difficult unsolved problem. Functional adsorbent materials with high stability, anion-exchange capacity, excellent selectivity, and recyclability are much needed to solve this problem. In this work, we designed two stable cationic metal-organic frameworks (MOFs) - Zr-tcbp-Me and Zr-tcpp-Me - for possible use as adsorbent materials to remove 99TcO4-. Both compounds were synthesized by solvothermal reactions of the tetracarboxylate ligand with zirconium salt, followed by postsynthetic modification (N-methylation). The crystallinity of both zirconium-based MOFs can be well retained under harsh conditions, and they exhibit high adsorption capacity and selectivity toward ReO4- anion, a nonradioactive analogue of 99TcO4-. Zr-tcbp-Me and Zr-tcpp-Me demonstrate the highest framework stability toward acidity among all previously reported cationic MOFs that have been tested for perrhenate removal from wastewater.
Isoreticular Linker Substitution in Conductive Metal–Organic Frameworks with Through-Space Transport Pathways
Campbell, Michael G.,Chmielewski, Micha? J.,Dinc?, Mircea,Kharod, Ruby A.,Liu, Hanyu,Park, Sarah S.,Xie, Lilia S.,Yang, Luming
supporting information, p. 19623 - 19626 (2020/06/01)
The extension of reticular chemistry concepts to electrically conductive three-dimensional metal–organic frameworks (MOFs) has been challenging, particularly for cases in which strong interactions between electroactive linkers create the charge transport
Fabrication of (4, 10) and (4, 12)-Connected Multifunctional Zirconium Metal-Organic Frameworks for the Targeted Adsorption of a Guest Molecule
Zhang, Liangliang,Guo, Bingbing,He, Huihui,Zhang, Xiurong,Feng, Yang,Fan, Weidong,Cao, Junlong,Lu, Guang,Chen, Yanhui,Sun, Daofeng,Huang, Wei
supporting information, p. 695 - 704 (2019/12/27)
Following the principle of a topology guide, a zirconium MOF (PCN-207) based on the H4TPTA ligand (tetramethyl(4,4′,4″,4?-(pyrazine-2,3,5,6-tetrayl))tetrabenzoic acid) with C2 symmetry and an 8-connected Zr6(μ3-
Synthesis of pentafluorobenzene-based NHC adducts and their catalytic activity in the microwave-assisted reactions of aldehydes
Papadaki, Evanthia,Magrioti, Victoria
supporting information, (2019/12/24)
N-Heterocyclic carbenes (NHCs) have been widely used in organometallic chemistry as ligands, as well as standalone organocatalysts in various reactions, mostly using aromatic aldehydes as substrates. We have previously demonstrated the efficiency of azolium-2-carboxylate zwitterions in the hydroxymethylation of aldehydes, especially aliphatic aldehydes, under microwave irradiation. In the present work, we report a series of pentafluorobenzene-based NHC adducts and their efficiency in the hydroxymethylation and self-condensation of aliphatic and aromatic aldehydes using microwave irradiation. The free carbenes are released under the reaction conditions and 1,3-dimesityl-2-(perfluorophenyl)imidazolidine and 1,3-bis(2,6-dimethylphenyl)-2-(perfluorophenyl)imidazolidine proved to be the most potent precatalysts.
A Metal-Organic Framework Based on a Nickel Bis(dithiolene) Connector: Synthesis, Crystal Structure, and Application as an Electrochemical Glucose Sensor
Zhou, Yan,Hu, Qin,Yu, Fei,Ran, Guang-Ying,Wang, Hai-Ying,Shepherd, Nicholas D.,D'Alessandro, Deanna M.,Kurmoo, Mohamedally,Zuo, Jing-Lin
supporting information, p. 20313 - 20317 (2020/11/27)
Functionalizing the redox-active tetrathiafulvalene (TTF) core with groups capable of coordination to metals provides new perspectives on the modulation of architectures and electronic properties of organic-inorganic hybrid materials. With a view to exten
Cr2O72-inside Zr/Hf-based metal-organic frameworks: Highly sensitive and selective detection and crystallographic evidence
Huang, Yong-Liang,Li, Dan,Li, Yan Yan,Lu, Weigang,Luo, Dong,Wu, Kun,Zheng, Ji
supporting information, p. 16974 - 16983 (2020/12/30)
Herein, we report the synthesis of three pairs of isostructural zirconium- and hafnium-based homometallic metal-organic frameworks (MOFs, termed Zr-MOF-1 and Hf-MOF-1, Zr-MOF-2 and Hf-MOF-2, and Zr-MOF-3 and Hf-MOF-3) with respective scu, sqc, and flu top
The Direct Conversion of α-Hydroxyketones to Alkynes
Ghiringhelli, Francesca,Nattmann, Lukas,Bognar, Sabine,Van Gemmeren, Manuel
, p. 983 - 993 (2019/01/24)
Alkynes are highly important functional groups in organic chemistry, both as part of target structures and as versatile synthetic intermediates. In this study, a protocol for the direct conversion of α-hydroxyketones to alkynes is reported. In combination with the variety of synthetic methods that generate the required starting materials by forming the central C-C bond, it enables a highly versatile fragment coupling approach toward alkynes. A broad scope for this novel transformation is shown alongside mechanistic insights. Furthermore, the utility of our protocol is demonstrated through its application in concert with varied α-hydroxyketone syntheses, giving access to a broad spectrum of alkynes.
Tetrakis(Oxadiazolylphenyl)pyrazines: New st. Andrew’s cross-shaped liquid crystals
R?der, Nico,Marszalek, Tomasz,Limbach, Daniel,Pisula, Wojciech,Detert, Heiner
, p. 463 - 469 (2019/06/03)
π-Conjugated molecules with the shape of St. Andrew’s cross have been synthesized via fourfold Huisgen reaction. Four 2,5- diaryl-1,3,4-oxadiazol arms are attached to a central pyrazine nucleus. These fluorescent stars, when decorated with a rim of eight alkoxy side chains are discotic liquid crystals. Depending on the substitution pattern, the width of the liquid phase varies within a broad range of 25°C to 250°C. In their liquid crystalline phase, the molecules assemble in a typical hexagonal columnar supramolecular arrangement.
