Article
Chemistry, Multidisciplinary
Aaron J. Mallek, Bradley L. Pentelute, Stephen L. Buchwald
Summary: This study discusses the selective N-arylation of p-aminophenylalanine in polypeptides using pre-formed palladium oxidative addition complexes, enabling chemoselective C-N bond formation on peptides containing multiple other amino groups. By utilizing palladium complexes derived from electron-poor aryl halides, p-aminophenylalanine can be fully arylated at micromolar concentrations in aqueous buffer in a short amount of time. A complementary protocol using the non-nucleophilic, organic base 1,5-diazabicyclo(4.3.0)non-5-ene (DBN) expands the substrate scope and provides high conversion rates of up to 97%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Benjamin S. Mitchell, Werner Kaminsky, Alexandra Velian
Summary: A new strategy was reported to tailor the electronic properties of a superatomic metal chalcogenide cluster by redox matching the core with surface tin(IV) sites. Two ternary clusters were synthesized using salt metathesis, showing new electronic states attributed to the reduction of a surface tin site. X-ray diffraction analysis revealed no Sn···Se coordination in the solid state.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Simon H. Schlindwein, Martin Nieger, Dietrich Gudat
Summary: A series of polynuclear complexes containing phosphane-decorated benzenedithiol were synthesized experimentally, with the gold(I) complex undergoing oxidation to form a mixed-valent gold complex, and the copper(I) complex exhibiting luminescent properties in the solid state.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Marianna Pioli, Cecilia Loffi, Paolo Pio Mazzeo, Alessia Bacchi, Paolo Pelagatti
Summary: Two different N-substituted naphthalimide ligands have been synthesized and reacted with a cationic organometallic fragment, showing different coordination behaviors. One ligand forms a sandwich complex with six coordination sites, while the other forms two isomeric complexes with different stabilities.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Kelsey R. R. Cairns, Rhys P. P. King, Robert D. D. Bannister, William Levason, Gillian Reid
Summary: The reaction of divalent M(OTf)(2) (M = Sn, Pb; OTf = CF3SO3) with soft phosphine and arsine ligands produces white powders M(L)(OTf)(2) which have been characterized through various spectroscopic techniques, confirming the presence of P-31-Sn-119 and P-31-Pb-207 couplings. Crystal structures of nine phosphine complexes reveal a range of coordination environments including monomers, weakly associated dimers, trimers, and polymers. Anion metathesis of [M(OTf)(2){MeC(CH2PPh2)(3)}] with Na[BArF] yields [M{MeC(CH2PPh2)(3)}][BArF](2) salts with pyramidal dications and discrete [BArF](-) anions. DFT calculations show the presence of a directional lone pair with p-orbital character decreasing down group 14.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Naresh Kumar, Sonika Asija, Yogesh Deswal, Deepak Kumar, Deepak Kumar Jindal, Lokender Kumar, Sandeep Kumar, Jai Devi
Summary: In this study, a series of diorganotin(IV) complexes with the general formula R2SnL1-4 were synthesized by reacting R2SnCl2 (R = Me, Et, Bu, and Ph) with hydrazone ligands (H2L1-4). Various analytical techniques were used to determine the structures of the synthesized compounds. The compounds showed better antimicrobial activity than the free ligands, with complexes 8, 12, and 20 exhibiting the highest activity. Additionally, the synthesized compounds showed significant anticancer activity against three cancer cell lines, with complexes 5, 6, and 8 being the most active.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Filip Horky, Ivana Cisarova, Petr Stepnicka
Summary: This study described the synthesis of new donor-unsymmetric dppf congeners and their conversion into air-stable Pd(0) complexes, which showed high catalytic activity and selectivity in the Pd-catalyzed C-H arylation reaction. The complex [Pd(ma)(2)] performed the best in synthesizing 2-arylbenzoxazoles with high yield and selectivity under environmentally friendly conditions.
Article
Chemistry, Multidisciplinary
Kyo Yamagata, Kento Ueta, Akito Nakai, Atsuhiro Osuka, Takayuki Tanaka
Summary: A recent study has reported that a mu-oxo-bridged dimer of Si(iv) corrole exhibits dual emissive properties depending on the solvent viscosity. In this study, the control of excited-state dynamics and dual emission was examined by introducing meso-aryl substituents. Different structures and emission behaviors were observed in the solid state and excited state, suggesting the importance of molecular structure on the dual emissive properties.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Christopher M. Caroff, Brian J. Bellott, Connor I. Daly, Scott R. Daly, Andrew C. Dunbar, Justin L. Mallek, Mark A. Nesbit, Gregory S. Girolami
Summary: This article describes the syntheses of a series of sodium aminodiboranate salts with different substituents on nitrogen. The compounds were characterized by NMR spectroscopy, IR spectroscopy, and crystallographic studies. The presence of rare ether ligands bridging between two metal ions was observed in one of the structures. The study discusses the structural and spectroscopic trends as a function of the nitrogen substituents.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yusen Qiao, Haolin Yin, Liane M. Moreau, Rulin Feng, Robert F. Higgins, Brian C. Manor, Patrick J. Carroll, Corwin H. Booth, Jochen Autschbach, Eric J. Schelter
Summary: The cerium(IV) mixed-ligand guanidinate-amide complexes exhibit intense and varied colors, with the number and type of ligands affecting absorption spectra, electronic structures, and oxidation state stability.
Article
Chemistry, Multidisciplinary
Jonas F. Goebel, Julian Loeffler, Zhongyi Zeng, Jens Handelmann, Albert Hermann, Ilja Rodstein, Tobias Gensch, Viktoria H. Gessner, Lukas J. Goossen
Summary: Palladium-catalyzed couplings of silicon enolates with aryl electrophiles are limited to expensive bromide substrates. However, a study using ylide functionalized phosphines (YPhos) showed promising results in coupling inexpensive aryl chlorides with alpha-trimethylsilyl alkylnitriles. A statistical model was developed to predict catalyst structures with superior performance, leading to the synthesis of pharmaceutically significant compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jiri Schulz, Ivana Cisarova, Robert Gyepes, Petr Stepnicka
Summary: In this study, Au-I complexes combining hard oxygen and soft (diphenylphosphanyl)ferrocene (L) ligands were synthesized and structurally characterized. Unique metal complexes were obtained, including a crown-like mixed-valent Au-0/Au-I cluster. N-bridged complexes were also prepared and further studied using DFT calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Madeleine S. Woodward, Rhys P. King, Robert D. Bannister, Julian Grigg, Graeme McRobbie, William Levason, Gillian Reid
Summary: In this study, a series of complexes containing trifluorogermanium cations were characterized by reaction analysis and spectroscopy techniques, and the isomerization phenomenon in solution was reported. Dicationic complexes containing the GeF22+ fragment were synthesized using different ligands and reaction conditions, and their structures were investigated. In addition, the effect of sequentially removing fluoride atoms from a complex on the bonding was studied using density functional theory calculations.
Article
Chemistry, Inorganic & Nuclear
Felix Mueller, Lucas Wickemeyer, Jan Schwabedissen, Martin Ertl, Beate Neumann, Hans-Georg Stammler, Uwe Monkowius, Norbert W. Mitzel
Summary: Two gold(I) dimers were synthesized using tin-gold exchange reactions, characterized by various experiments, and further investigated using computational and photophysical methods.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Mohd Nazish, Han Bai, Christina M. Legendre, Regine Herbst-Irmer, Lili Zhao, Dietmar Stalke, Herbert W. Roesky
Summary: This work presents the different coordination nature of the bidentate ligand towards gold and silver complexes. Compound 2 exhibits intramolecular aurophilic interaction, while in compound 4, only two P(III) coordinate to Ag(I) with simultaneous oxidative addition of Fluorine.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Victoria K. Greenacre, Andrew L. Hector, Ruomeng Huang, William Levason, Vikesh Sethi, Gillian Reid
Summary: In this study, WSeCl4 was synthesized by heating WCl6 and Sb2Se3 in vacuo and characterized. The reaction of WSeCl4 with various ligands was investigated, and the properties of the resulting complexes were analyzed. Additionally, highly reflective WSe2 thin films were obtained through low-pressure chemical vapor deposition.
DALTON TRANSACTIONS
(2022)
Article
Electrochemistry
A. G. Wallace, R. P. King, N. Zhelev, A. H. Jaafar, W. Levason, R. Huang, G. Reid, P. N. Bartlett
Summary: In this paper, the use of Na-3[SbS4].9H(2)O as a single source precursor for the electrodeposition of Sb2S3 is reported. The study shows that high-quality crystalline films of Sb2S3 can be obtained by suitable pulse plating approach, and these films exhibit promising potential for application in Resistive Random-Access Memory.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Wenjian Zhang, William Levason, Gillian Reid
Summary: In this study, a novel manganese-phosphine complex was synthesized and characterized through experimental and analytical methods. The complex undergoes a double P-C coupling reaction and defluorination of aryl groups, resulting in the formation of a stable nine-membered triphosphine macrocyclic complex.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Kelsey R. R. Cairns, Rhys P. P. King, Robert D. D. Bannister, William Levason, Gillian Reid
Summary: The reaction of divalent M(OTf)(2) (M = Sn, Pb; OTf = CF3SO3) with soft phosphine and arsine ligands produces white powders M(L)(OTf)(2) which have been characterized through various spectroscopic techniques, confirming the presence of P-31-Sn-119 and P-31-Pb-207 couplings. Crystal structures of nine phosphine complexes reveal a range of coordination environments including monomers, weakly associated dimers, trimers, and polymers. Anion metathesis of [M(OTf)(2){MeC(CH2PPh2)(3)}] with Na[BArF] yields [M{MeC(CH2PPh2)(3)}][BArF](2) salts with pyramidal dications and discrete [BArF](-) anions. DFT calculations show the presence of a directional lone pair with p-orbital character decreasing down group 14.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rhys P. King, Julie M. Herniman, William Levason, Gillian Reid
Summary: A series of M(II) (M = Ge, Sn, Pb) complexes with endocyclic thioether macrocyclic coordination and varying coordination numbers have been synthesized. The ligand is bound in an endocyclic manner, and the coordination environment and number are dependent on the group 14 ion, macrocyclic ring size, and number of S-donor atoms. The stability of the metal-macrocycle coordination in solution and the dissociation of triflate anions were investigated.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Rhys P. King, William Levason, Gillian Reid
Summary: The tetra-alkylammonium tetrathioantimonate(V) salts were prepared and characterized. The alkylammonium salts showed solubility in water and weakly polar organic solvents, and [N(n-Bu)4]3[SbS4] was found to be suitable for studying coordination chemistry or materials applications that cannot use water as a solvent. Furthermore, a thiosulfate complex of a p-block element was obtained through the decomposition of [N(n-Bu)4]3[SbS4] in acidic media.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Electrochemistry
D. A. Cook, S. J. Reeves, W. Zhang, G. Reid, W. Levason, P. N. Bartlett, J. M. Dyke, V. K. Greenacre
Summary: Electrodeposition of elemental Te from [NnBu4]2[TeCl6] in dichloromethane was studied. It was found that reduction of the Te(IV) complex to deposit Te requires a large overpotential, which is significantly reduced once Te is deposited on the electrode. This overpotential arises due to the instability of the intermediate Te(III) species. Density functional theory calculations confirmed the instability of possible Te(III) complexes, and a catalytic mechanism involving Lewis acid/base adduct formation at the electrode surface was proposed to overcome this thermodynamic barrier.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Nabil A. N. Mohamed, Yisong Han, Sarah Harcourt-Vernon, Andrew L. Hector, Anthony R. Houghton, Gillian Reid, Daryl R. Williams, Wenjian Zhang
Summary: The production of vertically oriented mesoporous silica films has been a challenge since the 1990s. The electrochemically assisted surfactant assembly (EASA) method using cationic surfactants has been successful in achieving the desired vertical orientation. The synthesis of porous silicas using surfactants with increasing head sizes has been explored, showing that while the larger head groups increase pore size, they also reduce the degree of hexagonal order in the vertically aligned pores and pore accessibility.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
V. Sethi, D. Runacres, V. Greenacre, Li Shao, A. L. Hector, W. Levason, C. H. de Groot, G. Reid, R. Huang
Summary: In this study, WS2xSe2-2x (0 <= x <= 1) binary and ternary thin films were successfully deposited using single source precursors [WECl4(E'Bu-n(2))] (E = S or Se; E' = S or Se) through low-pressure chemical vapour deposition. The deposits were characterized by grazing-incidence X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy, confirming their phase purity and stoichiometry. Hall measurements revealed high electrical conductivities for the films, which can be tuned through an annealing process by manipulating Se and S vacancies. The thermoelectric capabilities of the WS2xSe2-2x films were evaluated using variable-temperature Seebeck measurements, showing a peak power factor of 6 mu W m(-1) K-2 for the as-deposited WS2 film at 553 K.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Zening Zhu, Geoffrey Hyett, Gillian Reid, Fred Robinson, Giannantonio Cibin, Andrew L. Hector
Summary: Sulfur-deficient SnS thin films were prepared for sodium-ion battery anode application using aerosol-assisted chemical vapor deposition. These films exhibited high capacity in sodium half cells, with a specific capacity of 1084 mAh g(-1) in the first reduction scan at a current of 150 mA g(-1) and a specific capacity of 638 mAh g(-1) for reduction and 593 mAh g(-1) for oxidation at the 50th cycle. The sulfur-deficient SnS material exhibited these high capacities without the need for a nanostructured carbon support.
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)
