Ken Lo
@bhkenlo.bsky.social
Chair Professor of Inorganic Chemistry at City University of Hong Kong. Associate Editor of Inorganic Chemistry. https://personal.cityu.edu.hk/bhkenlo/index.htm
Effect of the [Fe(salen)]2-μ-oxo Catalyst Electronic Structure on Reductive Hydroamination | Inorganic Chemistry pubs.acs.org/doi/10.1021/...
Effect of the [Fe(salen)]2-μ-oxo Catalyst Electronic Structure on Reductive Hydroamination
Salen ligands are privileged scaffolds in transition metal catalysis due to their electronic tunability and capacity to stabilize diverse oxidation states. Herein, we report the synthesis and comparat...
pubs.acs.org
Cytotoxic Effects of Mono- and Trinuclear Platinum(II)–N-Heterocyclic Carbene Complexes against Triple-Negative Breast Cancer Cell Lines | Inorganic Chemistry pubs.acs.org/doi/10.1021/...
pubs.acs.org
Oxovanadium(IV) Thiocarboxylate Paddlewheels Containing Ancillary Group 10 Metals: A Comparative Study on Pd and Pt Derivatives | Inorganic Chemistry pubs.acs.org/doi/10.1021/...
Oxovanadium(IV) Thiocarboxylate Paddlewheels Containing Ancillary Group 10 Metals: A Comparative Study on Pd and Pt Derivatives
Vanadyl-containing paddlewheel structures have recently joined the pool of molecular spin systems showing respectable coherence times (Tm). We extended the investigation of [PtVO(SOCR)4] (R = Me, Ph) ...
pubs.acs.org
Bimetallic Activation of SF6 by a Bis(Gallylene) | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Tonner-Zech, Kretschmer, and co-workers @InorgChem #gallium #bis_gallylene #SF6 #4DMAP #DFT
Bimetallic Activation of SF6 by a Bis(Gallylene)
The degradation of the kinetically inert and potent greenhouse gas sulfur hexafluoride by a bimetallic main-group ambiphile (Lewis amphotere) is reported. Reaction of the bis(gallylene) 1 with SF6 at 80 °C results in the selective formation of the bimetallic gallium(II) fluoride 2. Irradiation with UV light or the addition of 4-dimethylaminopyridine (4-DMAP) accelerates the reaction, enabling it to proceed already at room temperature. Computations reveal a bimetallic activation scenario and shed light on the accelerating effect of 4-DMAP.
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Cu(I)-Anchored NHC-Functionalized Covalent Organic Framework (COF) for Catalyzing CO2 Chemical Fixation into High-Value Compounds | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Nagaraja and co-workers @InorgChem #NHC #COF #CO2 #fixation
Cu(I)-Anchored NHC-Functionalized Covalent Organic Framework (COF) for Catalyzing CO2 Chemical Fixation into High-Value Compounds
Rapid urbanization has intensified global energy demands, leading to elevated carbon dioxide emissions. Therefore, capturing and utilizing CO2 as a C1 feedstock is a viable way to synthesize value-add...
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Structural Diversity and Tunable Emission in Hybrid Organic–Inorganic Copper(I) Bromides | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Saparov and co-workers @InorgChem #copper #bromides #TMPA #0D #1D #emission
Structural Diversity and Tunable Emission in Hybrid Organic–Inorganic Copper(I) Bromides
Recently, hybrid organic–inorganic copper(I) metal halides have attracted global attention due to their intriguing optical properties and low-cost solution processability. In this work, we report three hybrid organic–inorganic copper(I) bromides, [TMPA]2[Cu2Br4], [TMPA]4[Cu6Br10], and [TMPA]2[Cu4Br6], synthesized through a slow evaporation method using trimethylphenylammonium (TMPA+) as the organic cation. By precise control of the CuBr and TMPABr precursors, different copper halide [Cu2Br4]2–, [Cu6Br10]4–, and [Cu4Br6]2– structural units can be obtained. [TMPA]2[Cu2Br4], [TMPA]4[Cu6Br10], and [TMPA]2[Cu4Br6] demonstrate distinct blue, orange, and greenish-yellow light emission, respectively. The first two compounds have zero-dimensional (0D) crystal structures in centrosymmetric triclinic space group P-1 and monoclinic space group P21/n. In contrast, [TMPA]2[Cu4Br6] features a unique one-dimensional (1D) structure and crystallizes in the centrosymmetric monoclinic space group P21/c. Consequently, the observed greenish-yellow emission of [TMPA]2[Cu4Br6] is also unique, in contrast to the typical orange-red emission of 0D [Cu4Br6]-based compounds. This work provides insights into the design of copper halide light emitters and emphasizes the influence of structural dimensionality on photoluminescence. The tunable optical properties suggest the potential of these materials for multicolor photopatterning, information encryption, and anticounterfeiting applications.
pubs.acs.org
Coligand-Dependent Cellular Effects and DNA/BSA Binding of Ruthenium(II) Tris(pyrazolylmethane) Complexes | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Biver, Trávníček, Marchetti, and co-workers @InorgChem #ruthenium #tpm #DNA #BSA #cells
Coligand-Dependent Cellular Effects and DNA/BSA Binding of Ruthenium(II) Tris(pyrazolylmethane) Complexes
Monocationic [RuCl(κ3-tpm)(L)(PPh3)]Cl (L = PPh3, 1; NCMe, 2; 1,3,5-triaza-7-phosphaadamantane (PTA), 3; phosphinoferrocene, 4; 3-methyl-pyrazole, 5; NH2(CH2)2OH, 6; NH2(CH2)2(4-C6H4OH) (tyramine), 7; cyclohexylamine, 8; NH2CH2CH2NH2, 9; tpm = tris-pyrazolylmethane) and bis-cationic ruthenium complexes [RuCl(κ3-tpm)(PPh3)(LL’)][NO3]2 (LL′ = ethylenediamine, 10; 1,10-phenanthroline, 11; 2-picolylamine, 12; N-phenyl-1-(2-pyridinyl)methanimine, 13) and [RuCl(κ3-tpm)(PPh3)(NCMe)2][NO3]2 (14) were evaluated for their anticancer potential. Complexes 4–9 and 13–14 are novel and were obtained in 72–98% yields from thermal exchange reactions of 1. They were characterized by IR and multinuclear NMR spectroscopy, and the solid-state structures of 4, 5, 6, 7, and 14 were determined by single-crystal X-ray diffraction. Complexes 3–8 and 10–14 were further examined for solubility and stability in aqueous media, and octanol/water partition coefficients. The complexes were assessed for their in vitro cytotoxicity on a panel of six cancer and two normal cell lines. Complex 1 and the ruthenium-ferrocenyl conjugate 4 revealed significant-to-moderate activity against the cancer cells, with IC50 values ranging from 1.8 to 25.2 μM. Mechanistic studies in A2780 cells included time-dependent cytotoxicity, intracellular ruthenium uptake, cell cycle analysis, autophagy induction, production of ROS (reactive oxygen species), and mitochondrial membrane potential measurements. Moreover, a detailed study was conducted to evaluate DNA and bovine serum albumin (BSA) binding capacity. Overall, the results revealed distinct potential mechanisms of action driven by ligand diversity, specifically mitochondrial uncoupling for 1 and 4, and apoptosis- and necrosis-induced cell death for 13 and 14.
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Chiral Lead-Oxyiodide Nonlinear Optical Crystals Constructed on l-Malate Groups | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Fu, Ma, and co-workers @InorgChem #lead #oxyiodide #chiral #NLO #SHG #L_alate
Chiral Lead-Oxyiodide Nonlinear Optical Crystals Constructed on l-Malate Groups
The pursuit of nonlinear optical (NLO) crystals exhibiting an exceptional second-harmonic generation (SHG) response has been a persistent objective in scientific research. Herein, three chiral lead-ox...
pubs.acs.org
Polarized Photoluminescence Study of Anisotropic Optical Properties in Undoped and Br-Doped SnS Single Crystals | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Kawanish, Terai, and co-workers @InorgChem #tin #monosulfide #SnS #A2DM #polarized #photoluminescence
Polarized Photoluminescence Study of Anisotropic Optical Properties in Undoped and Br-Doped SnS Single Crystals
Polarized photoluminescence spectroscopy was performed on high-quality undoped and Br-doped SnS single crystals to investigate recombination near the indirect band gap. Above the band gap, anisotropic...
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Structure, Bonding, and Stabilization Mechanism of High-Spin Cobalt- and Nickel-Based Metalized Borylene Complexes [(OC)BM(CO)n][M2(CO)6]+ (M = Ni, Co; n = 2, 3) | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Hu and Wang, @InorgChem #borylenes #nickel #cobalt #carbonyl #IRPD #DFT
A Comprehensive Mechanistic Scenario for Asymmetric Cross-Coupling Reaction of Diazoacetate and Terminal Alkyne under Copper Catalysis | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Wang and co-workers @InorgChem #diazoacetate #alkyne #copper #M06_L #NCI #indane #bisoxazoline
Mn2+ Doping in Organic Zn(II)-Based Halides toward Significantly Enhanced Optical Characteristics and Stabilities | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Lei, Kong, and co-workers @InorgChem #manganese #zinc #halides #0D #PLQY #scintillator
Interactions between the [Fe(CN)6]3– Complex and Monovalent Group IA A+ Ions (A+ = H+, Li+, Na+, K+, Rb+, and Cs+) in A3[Fe(CN)6] Model Compounds and Their Influence on... pubs.acs.org/doi/10.1021/... Bleuzen and co-workers @InorgChem #iron #alkali_metals #CoFe #Prussian_blue
A Macrocyclic Iron Complex with Pyridinium Amidate, Amidate, and Sulfonamidate N-Donor Atoms as Oxidation Catalysts | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Wright and co-workers @InorgChem #iron #macrocyclic #catalysis
Bis-thiosemicarbazone Ligands as Candidates for Radioantimony(III) Chelation for Use in Theranostic Applications | Inorganic Chemistry pubs.acs.org/doi/10.1021/... McKenzie and co-workers @InorgChem #antimony #radionuclei #thiosemicarbazone #theranostics
Role of Central Arene Rotators and Ag+, I+, and PdCl2 Centers in Hexagonal Macrocycles as Molecular Rotors | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Scanlon and co-workers @InorgChem #silver #iodine_cation #PdCl2 #arene #rotators #hexagonal #macrocycle
Hexavalent/Tetravalent Tellurium-Based Chalcogen Bond Catalysis on the Cyclization of 1,6-Diyne: Mechanistic Insights and Computational Design | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Zeng and co-workers @InorgChem #tellurium #chalcogen #catalysis #1_6_diyne
Solving the “Coloring Problem” in InPd3–xAgx (x = 0–0.7) by Phase Diagrams Modeling and Diffraction Experiments | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Janik, Rioux, Jana, and co-workers @InorgChem #indium #palladium #silver #coloring_problem
The Many Lives of [Ru(bpy)3]2+: A Historical Perspective | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Scattolini and co-workers @InorgChem 🍷 Review ✨ #ruthenium #bpy #history #analytical #photophysics #photochemistry #photoelectrochemistry #photoredox_catalysis #biochemical
Synergistic Construction of Lanthanide Coordination Supramolecular Framework through Coordination Bonds and π–π Stacking Interactions for Vis Blue-Red Ratio Luminescence Detection of D2O pubs.acs.org/doi/10.1021/... Wang, Liu, Liu, & co-workers @InorgChem #europium #D2O #ratiometric
The Metal–Hydride Protonation Mechanism of a Platinum(II) Pyridylidene Amide (PYA) Complex with Brookhart’s Acid | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Bukvic and Albrecht @InorgChem #platinum #pyridylidene #amide #Brookharts_acid #metal_hydride #protonation
K(UO2)O2(H2O)Cl·2H2O: Identification of Uranyl Peroxide Chloride as a Studtite Derivative | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Zhou, Wang, and co-workers @InorgChem #uranyl #peroxide #cloride #studtite
Syntheses, Reactivity, X-ray Structures, and Antioxidant Properties of Ruthenium(II) Complexes with Aryl/Ferrocenyl-Fluorodithiophosphate Ligands [PPh4][(X)FPS2] (X = p-Methoxy-C6H4, p-Ethoxy-C6H4, Ferrocenyl) pubs.acs.org/doi/10.1021/... Zhang and co-workers @InorgChem #ruthenium
Platinum Complexes of Tetradentate NCCN-Coordinating Ligands: Structures and Photophysical Properties of PtII, Pt2III and PtIV Compounds pubs.acs.org/doi/10.1021/... Dikova, Blundell, and Williams @InorgChem #platinum #II #III #IV #Pt2 #NCCN #tetradentate #photophysics
Structural and Spectroscopic Characterization of Plutonium and Other Tetravalent Metals Complexed to a Keggin Ion | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Deblonde and co-workers @InorgChem #plutonium #IV #Keggin #POM
A Biomimetic Au-Polyphenol-CuS Photothermal Agent with Acid-Triggered Disassembly for Enhanced Photothermal Conversion | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Du, Li, Chen, and co-workers @InorgChem #gold #GNS #EGCG #polyphenol #photothermal #acid #disassembly
Synthesis and Evaluation of Hydrophilic 1,10-Phenanthroline Derivative for the Separation of Scandium(III) and Yttrium(III) | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Hua, Liu, and co-workers @InorgChem #DS_DAPhen #TODGA #scandium #yttrium #separation
High-Color-Purity Blue OLEDs with a Small Efficiency Roll-Off Enabled by a Cyanoregulated Tetradentate Platinum(II) Complex | Inorganic Chemistry pubs.acs.org/doi/10.1021/... She, Li, and co-workers @InorgChem #platinum #tetradentate #OLEDs
