A5055188682- Synthesis and Properties of Aromatic Compounds
- Fullerene Chemistry and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Porphyrin and Phthalocyanine Chemistry
- Graphene research and applications
- Catalytic Processes in Materials Science
- Magnetism in coordination complexes
- Electrocatalysts for Energy Conversion
- Photochemistry and Electron Transfer Studies
- Crystallography and molecular interactions
- Coordination Chemistry and Organometallics
- Luminescence and Fluorescent Materials
- Photochromic and Fluorescence Chemistry
- Catalytic C–H Functionalization Methods
- Nanomaterials for catalytic reactions
- Electrochemical Analysis and Applications
- Organometallic Complex Synthesis and Catalysis
- Advanced Chemical Physics Studies
- Catalysis and Oxidation Reactions
- Organic Electronics and Photovoltaics
- Nanocluster Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Supramolecular Chemistry and Complexes
- Advanced Nanomaterials in Catalysis
Tongji University
2006-2025
Albany State University
2017-2025
University at Albany, State University of New York
2017-2025
Southwest Jiaotong University
2025
Materials Science & Engineering
2025
Materials Research Center
2025
Foshan University
2023
Beijing University of Chemical Technology
2023
The University of Sydney
2023
Ludong University
2021-2022
The chlor-alkali process plays an essential and irreplaceable role in the modern chemical industry due to wide-ranging applications of chlorine gas. However, large overpotential low selectivity current evolution reaction (CER) electrocatalysts result significant energy consumption during production. Herein, we report a highly active oxygen-coordinated ruthenium single-atom catalyst for electrosynthesis seawater-like solutions. As result, as-prepared with Ru-O4 moiety (Ru-O4 SAM) exhibits...
The development of highly active and stable cathodes in alkaline solutions is crucial for promoting the commercialization anion exchange membrane (AEM) electrolyzers, yet it remains a significant challenge. Herein, we synthesized atomically dispersed CoP4 moieties (CoP4–SSC) immobilized on ultrathin carbon nanosheets via phosphidation exfoliation strategy at medium temperature. thermodynamic formation process Co–P was elucidated using X-ray absorption spectroscopy (XAS) theoretical...
Abstract Of the five possible indenofluorene regioisomers, examples of a fully conjugated indeno[1,2‐ ]fluorene scaffold have so far remained elusive. This work reports preparation and characterization 7,12‐dimesitylindeno[1,2‐ as highly reactive species. Experimental computational data support notion molecule with pronounced diradical character that exists in triplet ground state. As such, both NICS ACID calculations suggest is weakly Baird aromatic. Reduction unstable red solid Cs metal...
This study explores a bottom-up approach toward negatively curved carbon allotropes from octabenzo[8]circulene, nanographene. Stepwise chemical reduction reactions of octabenzo[8]circulene with alkali metals lead to unique highly reduced hydrocarbon pentaanion, which is revealed by X-ray crystallography suggesting local view for the and metal intercalation processes allotropes. Polymerization tetrabromo derivative nickel-mediated Yamamoto coupling reaction results in new type porous...
This work represents an important step in the quest for creating atomically precise binary semiconductor nanoclusters (BS-NCs). Compared with coinage metal NCs, preparation of BS-NCs requires strict control reaction kinetics to guarantee formation single phase under mild conditions, which otherwise could lead generation multiple phases. Herein, we developed acid-assisted thiolate dissociation approach that employs suitable acid induce cleavage S-C bonds Cu-S-R (R = alkyl) precursor,...
The high nuclearity cubane-assembled Mn-oxo clusters serve as effective precursors for the preparation of monodispersed Mn 3 O 4 nanocrystals through colloidal chemistry approach.
The sulfidation of zero valent iron (ZVI) to an Fe@FeSx (S-ZVI) composite has been intensively explored in the ZVI field. Yet, further benefits from FeSx coating layer are seldom realized, especially those effectively using its intrinsic physical and chemical properties for elaborate design. Here, we demonstrate that a traditional Cr(VI) sequestration reaction, displays great utility immobilizing molecules containing hydroxyl groups (−OH) hence, attracting complexes chelated with carboxyl...
Abstract The CO oxidation reaction is studied in this work using a controlled structure consisting of Au/CeO 2 multilayers, the form towers 10 × µm base, with layer thicknesses nanometer range. This prepared on 3″ Si wafer reverse photolithography and vapor deposition an e‐beam chamber. thickness each dimensions only edges Au CeO layers are exposed to gas mixture. rate found scale total length interfaces for nanotowers same surface areas. TEM X‐ray diffraction (XRD) analyses reveal highly...
Chemical reduction of OBO-fused double[5]helicene with Group 1 metals (Na and K) has been investigated for the first time. Two doubly-reduced products have isolated structurally characterized by single-crystal X-ray diffraction, revealing a solvent-separated ion triplet (SSIT) Na
Abstract Incorporation of a five‐membered ring into helicene framework disrupts aromatic conjugation and provides site for selective deprotonation. The deprotonation creates an anionic cyclopentadienyl unit, switches on conjugation, leads to >200 nm red‐shift in the absorbance spectrum injects charge helical conjugated π‐system without injecting spin. Structural consequences were revealed via analysis monoanionic co‐crystallized with {K + (18‐crown‐6)(THF)} {Cs 2 (18‐crown‐6) 3 }....
Mono- and dianions of 2-tert-butyl-3a2 -azapentabenzo[bc,ef,hi,kl,no]corannulene (1 a) were synthesized by chemical reduction with sodium cesium metals, crystallized as the corresponding salts in presence 18-crown-6 ether. X-ray diffraction analysis salt, [{Na+ (18-crown-6)(THF)2 }3 {Na+ (18-crown-6)(THF)}(1 a2- )2 ], revealed a naked dianion. In contrast, controlled reaction 1 Cs allowed isolation singly doubly reduced forms a, both forming π-complexes ions solid state. [{Cs+...
Molecular and electronic structure, reduction electron transfer coordination abilities of a polycyclic aromatic hydrocarbon (PAH) having planar naphtho-group fused to the corannulene bowl have been investigated for first time using combination theoretical experimental tools. A direct comparison naphtho[2,3-a]corannulene (C28 H14 , 1) with parent (C20 H10 2) revealed effect framework topology change on properties aromaticity 1. The presence two steps 1 was predicted theoretically confirmed...
Herein, a selective tandem C–C bond-forming reaction with CO2 was developed to realize the bridging of enaminones and synthesis 1,4-dihydropyridines, respectively. n-Butylamine significantly promoted this deoxymethylenation procedure catalyzed by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) ZnCl2. The mechanism involving formation bis(silyl)acetal, nucleophilic addition, amine elimination also interpreted clarify two molecules generation dihydropyridine derivatives.
The series of doubly-reduced cycloparaphenylenes (CPPs) with increasing dimensions and flexibility shows the size-dependent structural changes enhanced host abilities.
We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic anionic graphene subunits from mono- bis-helicenes with an embedded five-membered ring. The reaction of can either proceed to the full double annulation or be interrupted by addition molecular oxygen at intermediate stage. regioselectivity cyclization cascade for confirms relief antiaromaticity is a dominant force these facile ring closures. Computational analysis reveals unique role preexisting...
The chemical reduction of a corannulene-based molecular nanographene, C76H64 (1), with Na metal in the presence 18-crown-6 afforded doubly-reduced state 1. This provokes distortion helicene core and has significant impact on aromaticity system.
Chemical reduction of a benzo-fused double [7]helicene (1) with two alkali metals, K and Rb, provided access to three different reduced states 1. The doubly-reduced helicene 12- has been characterized by single-crystal X-ray diffraction as solvent-separated ion triplet potassium counterions. triply- tetra-reduced helicenes, 13- 14- , have crystallized together in an equimolar ratio both form the contact-ion complexes Rb+ ions each, leaving remaining wrapped crown ether THF molecules. As...
Chemical reduction of sym-dibenzo[a,e]cyclooctatetraene (DBCOT, 1) has been investigated using group 1 metals ranging from Li to Cs as the reducing agents. With all alkali metals, DBCOT readily undergoes a 2-fold afford doubly reduced DBCOT2– (12–) anion. Seven products 12– with different alkali-metal counterions have isolated and fully characterized. Their X-ray diffraction structural analyses reveal ligand core planarization upon addition two electrons well versatility in coordination. The...
The highly regioselective C6–H hydroxylalkylation of purines and purine nucleosides within 10 min via the α-C(sp3)–H functionalization alcohols at room temperature is reported here for first time. reaction tolerated various functional groups, which have potential further modification to afford other valuable molecules. method avoids metal catalysts, light, protecting giving a direct strategy access 6-substitued alkylated with pharmaceutical bioactivities.
Abstract The two‐fold reduction of tetrabenzo[ a , c e g ]cyclooctatetraene (TBCOT, or tetraphenylene, 1 ) with K, Rb, and Cs metals reveals distinctive core transformation pathway: newly formed C−C bond converts the central eight‐membered ring into twisted two fused five‐membered rings. This 1.589(3)–1.606(6) Å falls single σ‐bond range generates perpendicular π‐surfaces dihedral angles 110.3(9)°–117.4(1)° in TR 2− dianions. As result, highly contorted ligand exhibits “butterfly” shape...
The Scholl reaction is a powerful synthetic method for polyaromatics through intramolecular C–C bond formation. In this work, three substrates were prepared to examine their potential generate heptagon‐embedded polycyclic compounds under the conditions of reaction. Interestingly, two spirocyclic bearing pentagonal ring obtained and fully characterized by single‐crystal X‐ray diffraction. cation radical mechanism was adapted explain these unexpected results. Our study enriches understanding...
Despite the symmetric, achiral atomic lattices typically found in binary semiconductor nanocrystals, we show that during their early formation stages, especially magic-size cluster (MSC) regime, chirality can be present these metastable, transient species, which are capable of further self-assembling into high-level chiral superstructures. Through a cation exchange process operating at room temperature, structurally symmetrical copper sulfide has been successfully converted pair enantiomeric...