An Air-Stable Organic Radical from a Controllable Photoinduced Domino Reaction of a Hexa-aryl Substituted Anthracene

Mao, Xiaoyu; Zhang, Jianyu; Wang, Xiaohui; Zhang, Haoke; Wei, Peifa; Sung, Herman H. Y.; Williams, Ian D.; Feng, Xing; Ni, Xin Long; Redshaw, Carl; Elsegood, Mark R. J.; Lam, Jacky W. Y.; Tang, Ben Zhong

doi:10.1021/acs.joc.1c00233

Pd-Immobilized Schiff Base Double-Layer Macrocycle: Synthesis, Structures, Peroxidase Mimic Activity, and Antibacterial Performance (2021)
Journal Article
Wang, K., Chen, K., Prior, T. J., Feng, X., & Redshaw, C. (2022). Pd-Immobilized Schiff Base Double-Layer Macrocycle: Synthesis, Structures, Peroxidase Mimic Activity, and Antibacterial Performance. ACS Applied Materials & Interfaces, 14(1), 1423–1433. https://doi.org/10.1021/acsami.1c19795

Di-, tri-, and tetra-aldehydes have been employed to access new [2 + 2] [2 + 3] and [2 + 4] double-layer Schiff base macrocycles. The [2 + 3] compound has been used for the immobilization of Pd and the resulting composite has been employed as a perox... Read More about Pd-Immobilized Schiff Base Double-Layer Macrocycle: Synthesis, Structures, Peroxidase Mimic Activity, and Antibacterial Performance.

Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone (2021)
Journal Article
Xing, T., Elsegood, M. R. J., Dale, S. H., & Redshaw, C. (2021). Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone. Catalysts, 11(12), Article 1554. https://doi.org/10.3390/catal11121554

The reaction of [Mo(η-C5Me5 )Cl4 ] with the ortho-, meta-, or para-iodo-functionalized anilines 2-IC6H4NH2, 3-IC6H4NH2, 4-IC6H4NH2 yields imido or amine products of the type [Mo(ηC5Me5 )Cl2 (IC6H4N)] (2-I, 1, 3-I, 3, 4-I, 5) or [Mo(η-C5Me5 )Cl4 (IC6H... Read More about Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone.

Construction of a Supramolecular Fluorescence Sensor from Water-soluble Pillar[5]arene and 1-Naphthol for Recognition of Metal Ions (2021)
Journal Article
Zhu, X. Y., Yang, X. N., Luo, Y., Redshaw, C., Liu, M., Tao, Z., & Xiao, X. (2021). Construction of a Supramolecular Fluorescence Sensor from Water-soluble Pillar[5]arene and 1-Naphthol for Recognition of Metal Ions. ChemistrySelect, 6(46), 13265-13269. https://doi.org/10.1002/slct.202103744

A new fluorescent chemosensor comprised of a pyridine functionalized pillar[5]arene (PyP5) and 1-naphthol has been designed and utilized for the recognition of metal cations. The 1-naphthol was encapsulated by the PyP5 cavity and formed a 1 : 1 host... Read More about Construction of a Supramolecular Fluorescence Sensor from Water-soluble Pillar[5]arene and 1-Naphthol for Recognition of Metal Ions.

Study on the Preparation Technology of Omeprazole Vesicles (2021)
Journal Article
Deng, W., Wang, Z., Zhang, Y., Chen, Q., Xiao, X., & Redshaw, C. (2021). Study on the Preparation Technology of Omeprazole Vesicles. Russian Journal of General Chemistry, 91(11), 2311-2319. https://doi.org/10.1134/S1070363221110190

Herein a study on the process of converting omeprazole into omeprazole vesicles by a film dispersion method is presented. Using encapsulation efficiency as an index, the formulation and technology of omeprazole vesicles are optimized by a single fact... Read More about Study on the Preparation Technology of Omeprazole Vesicles.

Structural and magnetic characterization of tetranuclear [Ni(II)<inf>2</inf>Ln(III)<inf>2</inf>] complexes bearing tetra-branched Schiff base ligands (2021)
Journal Article
Shen, L., Hu, P., Yang, X. J., Xu, H., Huang, Y. L., Redshaw, C., & Zhang, Q. L. (2022). Structural and magnetic characterization of tetranuclear [Ni(II)2Ln(III)2] complexes bearing tetra-branched Schiff base ligands. Polyhedron, 212, Article 115584. https://doi.org/10.1016/j.poly.2021.115584

A series of tetranuclear [Ni(II)2Ln(III)2] complexes of general formula [Ni2Ln2(L)(H2O)9(OH)4Cl]∙3H2O∙Cl (1, 2, 5) (Ln = Dy (1), Tb (2), Ho (5)) and [Ni2Ln2(L)(H2O)12Cl] ∙3H2O∙5Cl (3, 4, 6, 7) (Ln = Gd (3), Sm (4), Nd (6), Pr (7)); H4L = N,N’,N’’,N’’... Read More about Structural and magnetic characterization of tetranuclear [Ni(II)<inf>2</inf>Ln(III)<inf>2</inf>] complexes bearing tetra-branched Schiff base ligands.

Color tuning and white light emission based on tetraphenylethylene-functionalized cucurbit[7]uril and FRET triggered by host-guest self-assembly (2021)
Journal Article
Yang, J. F., Tao, Z., Redshaw, C., Zeng, X., & Luo, H. (2021). Color tuning and white light emission based on tetraphenylethylene-functionalized cucurbit[7]uril and FRET triggered by host-guest self-assembly. Tetrahedron, 101, Article 132509. https://doi.org/10.1016/j.tet.2021.132509

This work utilizes the advantages produced when combining aggregation-induced emission in aqueous medium with macrocyclic amphiphiles that can noncovalently incorporate donor/acceptor pairs. A novel FRET system was assembled by using tetraphenylethyl... Read More about Color tuning and white light emission based on tetraphenylethylene-functionalized cucurbit[7]uril and FRET triggered by host-guest self-assembly.

Stimuli-Responsive Materials from Ferrocene-Based Organic Small Molecule for Wearable Sensors (2021)
Journal Article
Li, L., Zhang, J., Yang, C., Huang, L., Zhang, J., Bai, J., …Tang, B. Z. (2021). Stimuli-Responsive Materials from Ferrocene-Based Organic Small Molecule for Wearable Sensors. Small, Article 2103125. https://doi.org/10.1002/smll.202103125

Stimuli-responsive crystals capable of energy conversion have emerged as promising materials for smart sensors, actuators, wearable devices, and robotics. Here, a novel ferrocene-based organic molecule crystal (Fc-Cz) that possesses anisotropic piezo... Read More about Stimuli-Responsive Materials from Ferrocene-Based Organic Small Molecule for Wearable Sensors.

Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters (2021)
Journal Article
Xing, T., Jiang, C., Elsegood, M. R. J., & Redshaw, C. (2021). Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters. Inorganic chemistry, https://doi.org/10.1021/acs.inorgchem.1c02192

A variety of lithiated calix[n]arenes, for which n = 6 or 8, have been isolated, structurally characterized, and evaluated as catalysts for the ring-opening polymerization (ROP) of the cyclic esters ϵ-caprolactone (ϵ-CL), δ-valerolactone (δ-VL), and... Read More about Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters.

Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters (2021)
Journal Article
Xing, T., Prior, T. J., & Redshaw, C. (2021). Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters. Dalton Transactions : an international journal of inorganic chemistry, 50(42), 15140-15152. https://doi.org/10.1039/d1dt02790e

Reaction of [LiPb(OiPr)3]2 (generated in situ) with either p-tert-butylcalix[4]areneH4 (L4H4) or p-tert-butylcalix[6]areneH6 (L6H6) resulted in the heterometallic lithium/lead complexes [Pb4Li2(L4)4H6(MeCN)3]·4.5MeCN (1·4.5MeCN) and [Pb8Li10Cl2(L6H2)... Read More about Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters.

Main-group metal complexes of α-diimine ligands: structure, bonding and reactivity (2021)
Journal Article
Zhang, R., Wang, Y., Zhao, Y., Redshaw, C., Fedushkin, I. L., Wu, B., & Yang, X. J. (2021). Main-group metal complexes of α-diimine ligands: structure, bonding and reactivity. Dalton Transactions : an international journal of inorganic chemistry, 50(39), 13634-13650. https://doi.org/10.1039/d1dt02120f

α-Diimine ligands, in particular 1,4-diazabutadiene (dad) and bis(iminoacenaphthene) (bian) derivatives, have been widely used for coordination with various metals, including main-group, transition, and lanthanide and actinide metals. In addition to... Read More about Main-group metal complexes of α-diimine ligands: structure, bonding and reactivity.

Metallocalix[n]arenes in catalysis: A 13-year update (2021)
Journal Article
Santoro, O., & Redshaw, C. (2021). Metallocalix[n]arenes in catalysis: A 13-year update. Coordination chemistry reviews, 448, Article 214173. https://doi.org/10.1016/j.ccr.2021.214173

Aside from their applications in the fields of ion extraction, gas storage and molecular sensors, calixarenes have been extensively employed as ligands for metal complexation. Moreover, metallocalix[n]arenes have shown interesting catalytic activity... Read More about Metallocalix[n]arenes in catalysis: A 13-year update.

Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability (2021)
Journal Article
Zhang, X., Chen, K., Chicoma, M., Goins, K., Prior, T. J., Nile, T. A., & Redshaw, C. (2021). Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability. Catalysts, 11(9), Article 1090. https://doi.org/10.3390/catal11091090

The Schiff-base compounds 2,4-di-tert-butyl-6-(((3,4,5-trimethoxyphenyl)imino)methyl)phenol (L1H), 2,4-di-tert-butyl-6-(((2,4,6-trimethoxyphenyl)imino)methyl)phenol (L2H), 2,4-di-tert-butyl-6-(((2,4-trimethoxyphenyl)imino)methyl)phenol) (L3H) derived... Read More about Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability.

Synthesis, crystal structure and bioactivity of phenazine-1-carboxylic acylhydrazone derivatives (2021)
Journal Article
Wu, S., Liang, X., Luo, F., Liu, H., Shen, L., Yang, X., …Redshaw, C. (2021). Synthesis, crystal structure and bioactivity of phenazine-1-carboxylic acylhydrazone derivatives. Molecules, 26(17), Article 5320. https://doi.org/10.3390/molecules26175320

A phenazine-1-carboxylic acid intermediate was synthesized from the reaction of aniline and 2-bromo-3-nitro-benzoic acid. It was then esterified and reacted with hydrazine hydrate to afford phenazine-1-carboxylic hydrazine. Finally, 10 new hydrazone... Read More about Synthesis, crystal structure and bioactivity of phenazine-1-carboxylic acylhydrazone derivatives.

Pyrene-based aggregation-induced emission luminogens (AIEgens) with less colour migration for anti-counterfeiting applications (2021)
Journal Article
Wang, X., Wang, L., Mao, X., Wang, Q., Mu, Z., An, L., …Tang, B. Z. (2021). Pyrene-based aggregation-induced emission luminogens (AIEgens) with less colour migration for anti-counterfeiting applications. Journal of Materials Chemistry C, 9(37), 12828-12838. https://doi.org/10.1039/d1tc03022a

Traditional luminescent materials are subject to aggregation-caused quenching, which limits their use for high-technological applications in the solid state. In an attempt to address such issues when using luminescent materials in fluorescent inks, b... Read More about Pyrene-based aggregation-induced emission luminogens (AIEgens) with less colour migration for anti-counterfeiting applications.

Allosteric binding properties of a 1,3-alternate thiacalix[4]arene-based receptor having phenylthiourea and 2-pyridylmethyl moieties on opposite faces (2021)
Journal Article
Rahman, S., Tomiyasu, H., Wang, C. Z., Georghiou, P. E., Alodhayb, A., Carpenter-Warren, C. L., …Yamato, T. (2021). Allosteric binding properties of a 1,3-alternate thiacalix[4]arene-based receptor having phenylthiourea and 2-pyridylmethyl moieties on opposite faces. New journal of chemistry = Nouveau journal de chimie, 45(41), 19235-19243. https://doi.org/10.1039/d1nj02991f

The synthesis of three new heteroditopic receptors (5a-c) which are based on thiacalix[4]arenes in the 1,3-alternate conformation is reported herein. These new receptors each have two thiourea moieties linking phenyl groups, two of which are substitu... Read More about Allosteric binding properties of a 1,3-alternate thiacalix[4]arene-based receptor having phenylthiourea and 2-pyridylmethyl moieties on opposite faces.

Red/Green Tunable-Emission Carbon Nanodots for Smart Visual Precision pH Sensing (2021)
Journal Article
Zhao, J. L., Luo, Q. Y., Ruan, Q., Chen, K., Liu, C., Redshaw, C., & Jin, Z. (in press). Red/Green Tunable-Emission Carbon Nanodots for Smart Visual Precision pH Sensing. Chemistry of materials : a publication of the American Chemical Society, https://doi.org/10.1021/acs.chemmater.1c01620

The development of novel carbon nanodots (CDs) with excellent optical properties and promising applications is an attractive but a challenging area. Herein, we demonstrate that the fluorescence properties of CDs can be optimized by simple modificatio... Read More about Red/Green Tunable-Emission Carbon Nanodots for Smart Visual Precision pH Sensing.

A highly selective turn-on fluorescent probe for the detection of zinc (2021)
Journal Article
Shen, L. Y., Chen, X. L., Yang, X. J., Xu, H., Huang, Y. L., Zhang, X., …Zhang, Q. L. (2021). A highly selective turn-on fluorescent probe for the detection of zinc. Molecules, 26(13), Article 3825. https://doi.org/10.3390/molecules26133825

A novel turn-on fluorescence probe L has been designed that exhibits high selectivity and sensitivity with a detection limit of 9.53 × 10−8 mol/L for the quantification of Zn2+ .1H-NMR spectroscopy and single crystal X-ray diffraction analysis reveal... Read More about A highly selective turn-on fluorescent probe for the detection of zinc.

Dynamic Coordination between a Triphenylamine-Functionalized Salicylaldehyde Schiff Base and a Copper(II) Ion (2021)
Journal Article
Zhang, X., Wu, S. T., Yang, X. J., Shen, L. Y., Huang, Y. L., Xu, H., …Feng, X. (2021). Dynamic Coordination between a Triphenylamine-Functionalized Salicylaldehyde Schiff Base and a Copper(II) Ion. Inorganic chemistry, https://doi.org/10.1021/acs.inorgchem.1c00523

The coordination between a ligand and a metal is a spontaneous and uncontrollable process. In this Article, we successfully observe the formation of metal coordination in a triphenylamine-functionalized salicylaldehyde Schiff base with a copper(II) i... Read More about Dynamic Coordination between a Triphenylamine-Functionalized Salicylaldehyde Schiff Base and a Copper(II) Ion.

Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies (2021)
Journal Article
Alshamrani, A. F., Santoro, O., Prior, T. J., Alamri, M. A., Stasiuk, G. J., Elsegood, M. R. J., & Redshaw, C. (2021). Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies. Dalton Transactions : an international journal of inorganic chemistry, 50(24), 8302-8306. https://doi.org/10.1039/d1dt01330k

Interaction of [Sc(OR)3] (R = iPr or triflate) with p-tert-butylcalix[n]arenes, where n = 4, 6, or 8, affords a number of intriguing structural motifs, which are relatively non-toxic (cytotoxicity evaluated against cell lines HCT116 and HT-29) and a... Read More about Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies.

An Air-Stable Organic Radical from a Controllable Photoinduced Domino Reaction of a Hexa-aryl Substituted Anthracene (2021)
Journal Article
Mao, X., Zhang, J., Wang, X., Zhang, H., Wei, P., Sung, H. H. Y., …Tang, B. Z. (2021). An Air-Stable Organic Radical from a Controllable Photoinduced Domino Reaction of a Hexa-aryl Substituted Anthracene. Journal of Organic Chemistry, https://doi.org/10.1021/acs.joc.1c00233

Air-stable organic radicals and radical ions have attracted great attention for their far-reaching application ranging from bioimaging to organic electronics. However, because of the highly reactive nature of organic radicals, the design and synthesi... Read More about An Air-Stable Organic Radical from a Controllable Photoinduced Domino Reaction of a Hexa-aryl Substituted Anthracene.

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