A5100785958- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Synthesis and characterization of novel inorganic/organometallic compounds
- Organoboron and organosilicon chemistry
- Crystallography and molecular interactions
- Organometallic Complex Synthesis and Catalysis
- Coordination Chemistry and Organometallics
- Catalytic Cross-Coupling Reactions
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Silicone and Siloxane Chemistry
- Various Chemistry Research Topics
- Metal-Catalyzed Oxygenation Mechanisms
- Inflammatory mediators and NSAID effects
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Pharmacological Effects and Assays
- Inorganic Chemistry and Materials
- Synthesis of heterocyclic compounds
- Luminescence and Fluorescent Materials
- Synthesis and Reactivity of Heterocycles
- Chemical Synthesis and Reactions
- Sulfur-Based Synthesis Techniques
- Advanced ceramic materials synthesis
- Osteoarthritis Treatment and Mechanisms
- History and advancements in chemistry
Southern University of Science and Technology
2022-2025
Xiamen University
2014-2023
China Agricultural University
2017-2023
University of Göttingen
2019-2021
Scripps Research Institute
1997-2020
California Institute for Biomedical Research
2020
Digital Health Cooperative Research Centre
2019
Radiation Oncology Associates
2019
Digital China Health (China)
2019
Hebei Academy of Agriculture and Forestry Sciences
2018
Isolable singlet carbenes have universally adopted a σ
The stabilization of reactive anionic main group species utilizing carbenes constitutes a burgeoning and scarcely explored field. Herein, we report the synthesis an triphosphorus [P3]ˉ unit, supported by two cyclic (alkyl)(amino)carbenes (CAACs) in form potassium salts. This anion features planar W-shaped conjugated C-P-P-P-C framework, characterized 5-center-6-electron π delocalization additional σ lone pair located on each three phosphorus atoms. Remarkably, this is not only strongly basic...
We have calculated the electronic structures of five different manganese−oxo dimer complexes using density functional methods combined with broken symmetry and spin projection concepts. The number carboxylate, oxo, peroxo bridging ligands was varied, terminal were triazacyclononane (TACN). formal Mn oxidation states varied from MnIII2 MnIIIMnIV to MnIV2. These been synthesized their X-ray magnetic properties measured previously. Heisenberg coupling parameters J resonance delocalization B for...
A mild and efficient procedure is described for the N-debenzylation of tertiary amines using α-chloroethyl chloroformate. The scope selectivity are also discussed.
Free phosphaborenes (R-P═B-R) are PB analogues of alkynes, and their isolation is a long-sought-after goal. Herein, we demonstrate that the combination π-donating π-accepting substituent with bulky flanking arene rings enables crystalline free phosphaborene 5 at room temperature. This electron push-pull cooperation, combined kinetic protection, hinders its inherent tendency to oligomerize. species features double bond consisting conventional σ delocalized π bond. The lone pair electrons P...
Abstract A germylene/borane Lewis pair ( 2 ) was prepared from a 1,1‐carboboration of amidinato phenylethynylgermylene 1 by B(C 6 F 5 3 . Compound reacted with i PrNCO and (4‐MeOC H 4 )C(O)Me, respectively, cleavage the C=O double bond. In first instance, O PrNC insert separately into Ge−B bond to yield GeBC O‐heterocycle ‐heterocycle ). second case )(Me)C inserts Ge−N while is incorporated in form Ge‐centered spiroheterocycle The reaction t BuNC give , which has almost same structure as...
The reaction of (LSi:)2 (1; L = PhC(NtBu)2) with 2 equiv Me3SiC2C2SiMe3 resulted in the formation (Me3SiC2)2(Me3Si)2C4Si2(L)2 (2). exhibited a one-electron transfer when treated 1 [Ph3C]+[B(C6F5)4]− to yield [(Me3SiC2)2(Me3Si)2C4Si2(L)2]·+[B(C6F5)4]− (3) and Ph3CCPh3, respectively. When compound was AgOSO2CF3 two electrons occurred produce [(Me3SiC2)2(Me3Si)2C4Si2(L)2]2+·2[OSO2CF3]− (4) elemental silver. 1,4-disilabenzene is disclosed an open-shell singlet diradical character, 3 4 are,...
Amino group combined P/Ge-based frustrated Lewis pairs (FLPs) Ph2PN(R)GeCl3 (R = 2,6-iPr2C6H3 (1), 2,4,6-Me3C6H2 (2), and C6H11 (3)) Ph2PN(2,6-iPr2C6H3)GeMe3 (4) as well P/Sn-based FLP Ph2PN(2,6-iPr2C6H3)SnMe3 (5) were prepared utilized for reactions with alkyne aldehyde molecules. Compounds 1-3 each reacted MeO2CC[triple bond, length m-dash]CCO2Me to give zwitterionic cyclic vinyls [Ph2PN(R)GeCl3](MeO2CC[double m-dash]CCO2Me) (6-8) compound 1 HC[triple the similar...
The 2-aminophenylaluminum dihydride (2-TMP-C6 H4 )AlH2 (2) has been prepared and characterized for the first time. Compound 2 features an intramolecular N⋅⋅⋅Al donor-acceptor bond. reacted with N-methylpyrrole N-methylindole (both at 50 °C) by means of elusive AlH C(sp2 )-H dehydroalumination to aluminum heteroaryls (3 4). Moreover, PhCCSiMe3 (at room temperature) Ph2 CCNR (R=iPr or 2,6-iPr2 C6 H3 , -30 20 °C ) yield aluminaindene heterocycle (8) alumina-aza-naphthalene (9 10), respectively....
A silicon-aluminum heterocycle LAl(SiH2SiH2)2AlL (L = PhC(NtBu)2) (1) was prepared. Compound 1 exhibits a unique (N2Al)2(SiH2)4 centrosymmetric six-membered ring structure with chair conformation, which is comparable that of cyclohexane. Furthermore, two intermediate analogues, silylene-alane adduct LSi(AlMe3)-Si(AlMe3)L (2) and oxidative product [LAlHSiH2Mes]2 (3) were obtained. 3 has an interesting arrangement Al-H SiH2 unit, are in close vicinity to each other. might be important function...
The silicon atom in LSiCl or LSiMes (L = PhC(NtBu)2, Mes 2,4,6-Me3C6H2) inserts into the B-X bond of RBX2 (R Ph, Mes, N(SiMe3)2; X Cl, Br), which is followed by migration amidinate ligand and halide atom. By this way, LB(R)SiCl3 2; 3; N(SiMe3)2, 4) LB(R)SiX2Mes 5; R 6; Br, 7) were obtained. Furthermore, a silylene-borane adduct LClSi → BPhCl2 (1) was obtained as an intermediate formation compound 2. Compounds 2-7 are rare examples borylhalosilanes.
Two borylaminoamidinatosilylenes (L)[(1,5-C8H14)B(Ar)N]Si (L = PhC(NtBu)2, Ar 2,6-iPr2C6H3 (1)) and (L)[(1,5-C8H14)B(Ar')N]Si (Ar' 2,4,6-Me3C6H2 (2)) have been prepared utilized to investigate the reaction toward isocyanide. Reactions of 1 with respective CN-2,6-Me2C6H3 CNCy (Cy cyclo-C6H11) produced compounds (L)Si(NAr)C(N-2,6-Me2C6H3)B(1,5-C8H14)(CN-2,6-Me2C6H3) (3) (L)Si(NAr)C(NCy)C(NCy)B(1,5-C8H14)(CNCy) (4). 2 yielded cyclo-(L)SiN(Ar')C(NCy)B(1,5-C8H14)C(NCy) (5)...
The synthesis of heterobimetallic cluster with the Al-S-M (M = Cu and Ag) structural unit has been realized for first time by reaction aluminum-dithiol LAl(SH)2 (L HC[C(Me)N(Ar)]2, Ar 2,6-iPr2C6H3) (MesCu)4 (MesAg)4 (Mes 2,4,6-Me3C6H2), respectively. isolated clusters exhibit core structures Al2Cu4S4 Al4Ag8S8, During formation [LAl(SAg)2]4, a side product LAlS6 is formed. However, excess sulfur resulted in LAlS4 as only soluble organic solvents. Both them represent rare examples aluminum...
Abstract Phosphaborenes are P/B analogs of alkynes. Herein, we describe the isolation a phosphaborene stabilized by an intramolecular Lewis base. This species is achieved via installation with sterically encumbering phosphino substituent. Although this features aromatic P 2 B three‐membered ring, ring strain allows hemi‐labile behavior P−B donor‐acceptor bond, thereby exhibiting frustrated pair reactivity. Our finding paves way for further exploration reactivity patterns monomeric phosphaborenes.
An amidinato-phosphino ligand ArN[double bond, length as m-dash]C(R)NH(o-Ph2PC6H4) (Ar = 2,4,6-Me3C6H2, R Ph (1); Ar 2,6-iPr2C6H3, (2); tBu (3)) was prepared. The reacted with CrCl3(THF)3 to yield the N,P-chelation complex [ArNHC(R)[double m-dash]N(o-Ph2PC6H4)]CrCl3(THF) (4-6), and ligand's lithium salt m-dash]C(R)N(o-Ph2PC6H4)Li respective CrCl2(THF)2 give N,N,P-chelation complexes [ArN[double m-dash]C(R)N(o-Ph2PC6H4)]CrCl2(THF) (7-8) {[ArN[double m-dash]C(R)N(o-Ph2PC6H4)]Cr(μ-Cl)}2 (9-11)....
Reaction of the aluminum dialkynyl LAl(CCR)2 (L=N,N-chelate ligand and R=organic group) with B(C6 F5 )3 proceeds through an intermediate Al⋅⋅⋅η2 -C≡C side-on coordination to form alumoles (2, 4, 6). A distinctive reaction pattern indicates a new facile synthetic route aluminum-containing heterocycles. The process is described, characterization compounds computational calculations were carried out. Furthermore, 2 4 exhibit aggregation-induced emission (AIE) bright yellow fluorescence.
Phosphagermylenylidenes (R–P═Ge), as heavier analogs of isonitriles, whether in their free state or complexes with a Lewis base, have not been previously identified isolable entities. In this study, we report the synthesis stable monomeric phosphagermylenylidene within coordination sphere base under ambient conditions. This species was synthesized by base-induced dedimerization cyclic dimer via Me3SiCl elimination from phosphinochlorogermylene framework. The deliberate integration bulky,...
Reactions of the N-aryl(diphenylphosphanyl)aminosilane Ph2PN(Ar)SiCl3–nMen (Ar = 2,4,6-Me3C6H2, n 0 (1a), 1 (2a), 2 (3a), 3 (4a); Ar 2,6-iPr2C6H3, (1b), (2b), (3b), (4b)) with methyl propiolate and dimethyl acetylenedicarboxylate (DMAD) give two types products, zwitterionic heterocycles [Ph2PN(2,4,6-Me3C6H2)SiCl3](HC═CCO2Me) (5c) [Ph2PN(Ar)SiCl3–nMen](MeO2CC═CCO2Me) (5a), (6a), (7a); (5b), (6b), (7b)) (Z)-silyliminophosphoranylalkene ArN═P(Ph2)C(CO2Me)═C(CO2Me)SiMe3 2,4,6-Me3C6H2 (8a),...
Reaction of silylene L(Cl)Si: (1; L = PhC(NtBu)2) with 1,3-diyne Me3SiC≡CC≡CSiMe3 produced bis-silene L(Cl)Si═C(SiMe3)C≡C(SiMe3)C═Si(Cl)L (2). This shows a route by oxidative coupling reaction to silenes. 2 AgOSO2CF3 resulted in [L(Cl)(F3CO2SO)Si](Me3Si)C═C═C═C(SiMe3)[Si(OSO2CF3)(Cl)L] (3) and silver mirror. From the B(C6F5)3 were isolated compounds {[L(Cl)Si](Me3Si)C═C═C═C(SiMe3)[Si(Cl)L]}2+·2[ClB(C6F5)3]− (4) {LSi[μ2-C2(SiMe3)(C≡CSiMe3)]}2 (5). When was treated [Ph3C]+[B(C6F5)4]−,...
Phosphaborenes, featuring a phosphorus-boron multiple bond, remain relatively untapped area in chemical research due to the limited synthetic methods. Introducing leaving groups as substituents phosphorus or boron can pave way for enhanced functionalization and modification. In this study, we present synthesis of phosphaborenes an N-heterocyclic boryl group on halogen substituent boron, with stabilization provided by carbene. Straightforward alkylation/arylation these is achieved...
Quinoxaline antibiotics are widely employed in the animal feeding and breeding industry their metabolites transfer to environment via ecological cycle. In this study, fluorescence microspheres-based immunochromatography has been established for simultaneous detection of five classical quinoxalines environmental water foodstuffs. Under optimal conditions, it achieved qualitative quantitative within 15 min. The visual limit (LOD) foodstuffs was 5–15 µg/L 100–250 µg/kg, respectively. Besides,...
The N-geminal P/Al Lewis pair [Ph2PN(2,6-iPr2C6H3)AlEt2]2 (1) has been prepared and studied for reaction with a series of alkynes. 1 RC≡CR yielded zwitterionic C2PNAl-heterocyclopentene [Ph2⌜PN(2,6-iPr2C6H3)AlEt2](CR=⌝CR) (R = Me (2), Ph (3)); PhC≡CEt produced two isomers, [Ph2⌜PN(2,6-iPr2C6H3)AlEt2](CPh=⌝CEt) (4a) [Ph2⌜PN(2,6-iPr2C6H3)AlEt2](CEt=⌝CPh) (4b); other alkynes generated [Ph2⌜PN(2,6-iPr2C6H3)AlEt2](CR1=⌝CR2) (R1, R2 CO2Et, (5); SiMe3, (6); PPh2, (7); SiMe3,H (8); H, EtO (9))....
Carbenes are known as donor molecules to form with chloroalane adducts, which enhances their aerobic and thermal stabilities. In contrast, the insertion products (cAACH)AlCl2(cAAC) (1) (cAACH)AlHCl(THF) (2; THF = tetrahydrofuran) have been formed in reaction of a cyclic alkyl(amino)carbene (cAAC:) HAlCl2, H2AlCl, respectively. PhC(NtBu)2Li precursor for HAlCl2 molar ratio 2:1 can easily compound [PhC(NtBu)2]2AlH (3) five-coordinate aluminum. The new studied by spectroscopic methods...