A5053077690- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Supramolecular Chemistry and Complexes
- Organometallic Complex Synthesis and Catalysis
- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Coordination Chemistry and Organometallics
- Nanoplatforms for cancer theranostics
- Luminescence and Fluorescent Materials
- Supramolecular Self-Assembly in Materials
- Ferrocene Chemistry and Applications
- Molecular Sensors and Ion Detection
- Advanced Photocatalysis Techniques
- Porphyrin and Phthalocyanine Chemistry
- Metal complexes synthesis and properties
- Synthesis and characterization of novel inorganic/organometallic compounds
- Asymmetric Hydrogenation and Catalysis
- Chemical Synthesis and Analysis
- Perovskite Materials and Applications
- Cyclopropane Reaction Mechanisms
- Click Chemistry and Applications
- Photodynamic Therapy Research Studies
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Graphene and Nanomaterials Applications
Korea University
2021-2024
Korea Research Institute of Chemical Technology
2019-2021
University of Ulsan
2015-2019
Government of the Republic of Korea
2015-2019
Daejeon University
2019
Indian Institute of Technology Delhi
2008-2015
Ulsan College
2015
Abstract The development of efficient drug delivery systems is essential for improving the efficacy and safety cancer drugs, particularly aggressive difficult‐to‐treat cancers. Covalent organic frameworks (COFs) are emerging as innovative porous nanomaterials in (DDS), due to their unique properties, including metal‐free skeleton, predetermined structures pore geometries, high porosity, large surface area, facile modification potential, good biocompatibility. These characteristics make COFs...
Molecular Borromean rings (BRs) is one of the rare topology among interlocked molecules. Template-free synthesis BRs via coordination-driven self-assembly tetracene-based Ru(II) acceptor and ditopic pyridyl donors reported. NMR single-crystal XRD analysis observed sequential transformation a fully characterized monomeric rectangle to molecular vice versa. Crystal structure revealed that particular was enforced by appropriate geometry metallacycle multiple parallel-displaced π-π interactions...
The coordination-driven self-assembly of an anthracene-functionalized ditopic pyridyl donor and a tetracene-based dinuclear Ru(II) acceptor resulted in interlocked metalla[2]catenane, [M2L2]2, methanol corresponding monorectangle, [M2L2], nitromethane. Subsequently, guest template, solvent, concentration effects allowed the to be reversibly fine-tuned among monorectangle catenane structures.
Solar light-driven fuel production from carbon dioxide using organic photocatalysts is a promising technique for sustainable energy sources. Band gap engineering in improving efficiency and fulfilling the requirements highly anticipated. Here, we present new strategy to engineer band covalent framework (COF) by varying push–pull electronic effect. To implement this strategy, have designed synthesized four different COFs tripodal amine...
Elucidating the underlying photochemical mechanisms of action (MoA) photodynamic therapy (PDT) may allow its efficacy to be improved and could set stage for development new classes PDT photosensitizers. Here, we provide evidence that "photoredox catalysis in cells," wherein key electron transport pathways are disrupted, constitute a general MoA associated with PDT. Taking cellular donor nicotinamide adenine dinucleotide as an example, have found well-known photosensitizers, such Rose Bengal,...
Abstract A molecular Solomon link was synthesized in high yield through the template‐free, coordination‐driven self‐assembly of a carbazole‐functionalized donor and tetracene‐based dinuclear ruthenium(II) acceptor. The doubly interlocked topology realized by strategically chosen ligand which capable participating multiple CH ⋅⋅⋅ π π–π interactions, as evidenced from single‐crystal X‐ray analysis computational studies. This method is first example two‐component using directional bonding...
Abstract Molecular knots have become highly attractive to chemists because of their prospective properties in mimicking biomolecules and machines. Only a few examples molecular from the billions tabulated by mathematicians been realized with more than eight crossings not reported date. We report here coordination‐driven [8+8] self‐assembly higher‐generation knot comprising as many sixteen crossings. Its solid‐state X‐ray crystal structure multinuclear 2D NMR findings confirmed its...
This review explores the promising role of COFs and MOFs in OSN membranes highlighting their potential for revolutionizing solvent separation purification across crucial sectors like pharmaceuticals, petrochemicals, environmental remediation.
An iridium-cornered nanometer-sized prismatic cage has been synthesized and characterized which allows three planar heteroguest molecules inside its cavity.
The first examples of ring-closing metathesis (RCM) reactions a series terminal alkene-derived cyclic phosphazenes have been carried out. tetrakis-, hexakis-, and octakis(allyloxy)cyclophosphazenes (NPPh(2))(NP(OCH(2)CH=CH(2))(2))(2) (1), N(3)P(3)(OCH(2)CH=CH(2))(6) (2), N(4)P(4)(OCH(2)CH=CH(2))(8) (3) the tetrakis(allyloxy)-S-phenylthionylphosphazene (NS(O)Ph)[NP(OCH(2)CH=CH(2))(2)](2) (4) were prepared by CH(2)=CHCH(2)ONa with cyclophosphazenes (NPPh(2))(NPCl(2))(2), N(3)P(3)Cl(6),...
Three new cobalt-ruthenium heterometallic molecular rectangles, 1-3, were synthesized through the coordination-driven self-assembly of a cobalt sandwich donor, (η5 -Cp)Co[C4 -trans-Ph2 (4-Py)2 ] (L; Cp: cyclopentyl; Py: pyridine), and one three dinuclear precursors, [(p-cymene)2 Ru2 (OO∩OO)2 Cl2 [OO∩OO: oxalato (A1 ), 5,8-dioxido-1,4-naphthoquinone (A2 or 6,11-dioxido-5,12-naphthacenedione (A3 )]. All self-assembled architectures isolated in very good yield (92-94 %) fully characterized by...
This paper reports the formation of unprecedented iridium(iii)-derived topological macrocycles. Discrete molecular Borromean rings 1 and 3 in pure form are synthesized via coordination-driven self-assembly an acceptor [(Cp*Ir)2(OO∩OO)](OTf)2 (Cp* = pentamethylcyclopentadienyl, OO∩OO 6,11-dioxido-5,12-naphthacenedione) (A) with dipyridyl donors 1,4-bis(4-pyridinylethynyl)benzene (L1) 2,5-bis(4-pyridinylethynyl)thiophene (L2) respectively methanol. Self-assembly using same under similar...
We present the advancement of photocatalytic water pollutant degradation efficiency a porous organic polymer material via post-synthetic modification with platinum clusters.
The reactions of lithiated ethynylferrocene, FcC≡CLi (Fc = ferrocenyl), with fluoro- and chlorocyclotriphosphazenes, N3P3X6 (X F, Cl), resulted in the formation stable mono-FcC≡CP3N3X5 [X F (1), Cl (2)] geminal bis[(FcC≡C)2PN](X2PN)2 (3), (4)], ethynylferrocene-substituted cyclophosphazenes. 1 2 CpCo(COD) were found to differ nature sandwich compounds (η5-Cp)Co{η4-C4[Fc2(N3P3X5)2]} formed. While fluorophosphazene-derived compound yielded both cis trans isomers cyclobutadiene complexes 5 6,...
Coordination-driven self-assembly of m-bis[3-(4-pyridyl)pyrazolyl]xylene (L) and [(p-cymene)2Ru2(OO∩OO)2(OTf)2] (A1) (OO∩OO = 6,11-dioxido-5,12-naphthacenedione) in methanol resulted a mixture [2]catenane 1 macrocycle 2, nitromethane pure whereas the coordination-driven L similar acceptors [OO∩OO 5,8-dioxido-1,4-naphthoquinonnato (A2); 2,5-dioxido-1,4-benzoquinonato (A3); oxalato (A4)] formations monomeric macrocycles 3–5, respectively. All self-assembled were obtained excellent yields...
Some bicyclic C-fused chlorinated tetrahydrofuro[3,2-c]azetidin-2-ones were prepared by a fairly general route involving Staudinger reaction of allylic/propargylic imidates with dichloroketene followed highly diastereoselective CuCl/PMDETA-catalyzed 5-exo-trig/dig chlorine atom transfer radical cyclization. An oxepan-fused β-lactam was also similarly 7-endo-trig Synthetic application the side chain products demonstrated its substitution in one azide azide−alkyne click phenylacetylene to...