Article
Chemistry, Inorganic & Nuclear
Jia-Xue Mao, Jiarui Chang, Jie Zhang, Xuenian Chen
Summary: The structures and catalytic reactivity of nickel chloride and thiolate complexes supported by benzene-pyridine-based nonsymmetrical PCN pincer ligands were investigated. The composition and substitution of the pincer backbone were found to have a significant influence on the structures and catalytic reactivity.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Fei Fang, Jia-Xin Kang, Cong-Qiao Xu, Jiarui Chang, Jie Zhang, Shujun Li, Xuenian Chen
Summary: The influence of the pincer platform composition and substitution on the reactivity and physical properties of pincer complexes is easily explored experimentally, with subtle effects on the molecular structures and thermodynamic stability. The bond lengths and strengths of M-C-ipso, M-P, and M-X were discussed, along with thermochemical balances for different types of pincer complexes.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Karol Wydra, Vasyl Kinzhybalo, Jerzy Lisowski
Summary: The formation of dimeric tetranuclear Sm(III), Eu(III), and Gd(III) complexes occurs when two dinuclear macrocyclic units of large triphenolic hexaazamine are linked by two carbonate anions. These complexes were initially obtained accidentally by fixing atmospheric carbon dioxide and subsequently obtained in a deliberate manner using carbonate salts. The X-ray crystal structures of these isomorphic complexes reveal a highly folded conformation of the macrocycle, which is also confirmed by 2D NMR spectra of the Sm(III) complex. ESI-MS and NMR spectra indicate that these carbonate complexes exist in solution in two different forms that are in a concentration-dependent dynamic equilibrium.
DALTON TRANSACTIONS
(2023)
Review
Biochemistry & Molecular Biology
Garazi Urgoitia, Maria Teresa Herrero, Fatima Churruca, Nerea Conde, Raul SanMartin
Summary: Direct arylation is an atom-economical alternative to established procedures, and the use of palladium pincer complexes as catalysts has led to improved efficiency and reaction yields. This paper reviews intra- and intermolecular direct arylation reactions and discusses the role of these active catalysts.
Article
Chemistry, Inorganic & Nuclear
Qingbing Yuan, Zeming Huang, Weikang Wu, Dongjing Hong, Shan Zhu, Jieding Wei, Shuangliu Zhou, Shaowu Wang
Summary: Novel tetranuclear organocopper(I) clusters with excellent catalytic activities have been synthesized through reactions between Cu(I) halides and lithiated ligands. The structures of these clusters are stabilized by multiple Cu-Cu interactions, with halide anions bridged to the metal centers.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Inorganic & Nuclear
Hugo Valdes, Juan M. German-Acacio, Gerard van Koten, David Morales-Morales
Summary: This study explores the synthesis and applications of bimetallic complexes by merging a metallocene and a (cyclopentadienyl/aryl) pincer metal complex, discussing their importance in tuning electronic properties, catalytic reactions, and chiral catalysis. Various approaches to merge metallocene and pincer-metal motifs are explored, showcasing the potential for creating diastereomerically pure derivatives through post-functionalization strategies. The authors aim to inspire further research in this field by highlighting the synthetic, physico-chemical properties, and remarkable catalytic activities of metallocene-based pincer-metal complexes.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Amy L. Speelman, Kazimer L. Skubi, Brandon Q. Mercado, Patrick L. Holland
Summary: Recent experimental evidence indicates that during N-2 reduction, the FeMoco of nitrogenase undergoes structural rearrangement, leading to the generation of coordinatively unsaturated iron sites. New designed ligands have shown the potential flexibility in structural arrangement of metal complexes, mimicking the resting state of nitrogenase.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Gracjan Kurpik, Anna Walczak, Mateusz Goldyn, Jack Harrowfield, Artur R. Stefankiewicz
Summary: A wide range of functionalized pyridine ligands have been used to synthesize various Pd(II) complexes with different structures. The functionalization of ligand molecules has a significant impact on the physicochemical properties of the coordination compounds. The study also reveals the relationship between NMR chemical shifts and ligand basicity. Furthermore, weak interactions have been identified through detailed crystallographic analysis, which explains the solution chemistry of the complexes. These Pd(II) complexes show efficient and versatile catalytic activity in Suzuki-Miyaura and Heck cross-coupling reactions.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Aya Eizawa, Kazuya Arashiba, Hiromasa Tanaka, Asuka Konomi, Kazunari Yoshizawa, Yoshiaki Nishibayashi
Summary: In this study, dimolybdenum complexes with quaterphenylene-bridged PNP-type pincer ligands were designed and synthesized based on DFT calculations. The results showed that these complexes exhibited excellent catalytic activity for the synthesis of ammonia from dinitrogen under ambient conditions using samarium diiodide as a reductant and water as a proton source.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Aya Eizawa, Kazuya Arashiba, Hiromasa Tanaka, Asuka Konomi, Kazunari Yoshizawa, Yoshiaki Nishibayashi
Summary: Dimolybdenum complexes bearing 3,3'''-(1,1':3',1'':3'',1'''-quaterphenylene)-bridged pyridine-based PNP-type pincer ligand were designed and prepared based on DFT calculations. These complexes serve as effective catalysts for the conversion of dinitrogen to ammonia under ambient reaction conditions, using samarium diiodide as a reductant and water as a proton source.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Eva Sanchez-Perez, Fernando Santos-Escobar, J. Felix Gutierrez-Corona, Kazimierz Wrobel, Katarzyna Wrobel, Oracio Serrano
Summary: This work describes a serendipitous self-assembly synthesis of non-symmetrical CNN-platinacycle pincer complexes, with an early formation and detection of hydride species. The synthesis involves a formal C-H bond activation and an earlier C-N bond formation, achieved via C-Br bond excision. Experimental results show that the nature of the Pt(II)-starting material does not significantly affect the reaction pathway, and the best yields are achieved using stoichiometric amounts of K2PtCl4, appropriate Schiff base ligand and aniline at 70 degrees C for three days.
NEW JOURNAL OF CHEMISTRY
(2021)
Review
Biochemistry & Molecular Biology
Zufar N. Gafurov, Artyom O. Kantyukov, Alexey A. Kagilev, Alina A. Kagileva, Il'yas F. Sakhapov, Ilya K. Mikhailov, Dmitry G. Yakhvarov
Summary: Pincer complexes are important in organometallic chemistry, especially as homogeneous catalysts for organic transformations. Non-symmetrical phosphorus-based pincer nickel complexes have shown higher catalytic activity and have gained increasing attention in recent years. This mini-review focuses on the recent advances in the chemistry of these complexes, including ligand design, synthesis, and catalytic applications.
Article
Chemistry, Inorganic & Nuclear
Jiarui Chang, Man Ding, Jia-Xue Mao, Jie Zhang, Xuenian Chen
Summary: A palladium(ii) hydride complex supported by a benzene-based PNCNP pincer ligand has been synthesized via two different routes and exhibits strong deprotonating ability and versatile catalytic activity. It can readily deprotonate acetamide to form the corresponding acetamido complex and catalyze the dehydrogenation of methanol to formaldehyde under mild conditions, as well as the direct hydration of nitriles to primary amides. The direct hydration of nitriles catalyzed by this complex is the most efficient palladium catalytic system for this type of reaction, achieving 100% selectivity and good to excellent yields.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Takashi Komuro, Daiki Mochizuki, Hisako Hashimoto, Hiromi Tobita
Summary: Unsaturated 16-electron iridium and rhodium complexes with a silyl-bipyridine-based SiNN-pincer ligand (Bpy(SiNN)) were synthesized and characterized. The iridium-Bpy(SiNN) complex successfully catalyzed the C(sp(2))-H borylation of arenes under mild conditions (around 40 degrees C), yielding arylboronate esters with high yields (>= 93%).
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Ming Li, Sandeep K. Gupta, Sebastian Dechert, Serhiy Demeshko, Franc Meyer
Summary: Synthetic routes have been developed for a dicobalt(I) complex using a unique pyrazolate-bridged dinucleating ligand, showing efficient catalytic activity in the reductive silylation of nitrogen. Protonation leads to the formation of a tetracobalt(I) complex, demonstrating potential in the field of molecular nitrogen fixation catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Emily C. Monkcom, Pradip Ghosh, Emma Folkertsma, Hidde A. Negenman, Martin Lutz, Robertus J. M. Klein Gebbink
Article
Chemistry, Multidisciplinary
Eduard Masferrer-Rius, Raoul M. Hopman, Jishai van der Kleij, Martin Lutz, Robertus J. M. Klein Gebbink
Article
Chemistry, Physical
Jing Li, Martin Lutz, Robertus J. M. Klein Gebbink
Article
Chemistry, Physical
Jing Li, Martin Lutz, Robertus J. M. Klein Gebbink
Article
Chemistry, Multidisciplinary
Joeri Hessels, Eduard Masferrer-Rius, Fengshou Yu, Remko J. Detz, Robertus J. M. Klein Gebbink, Joost N. H. Reek
Article
Chemistry, Multidisciplinary
Emily C. Monkcom, Daniel de Bruin, Annemiek J. de Vries, Martin Lutz, Shengfa Ye, Robertus J. M. Klein Gebbink
Summary: This article presents the synthesis and coordination chemistry of a bulky, tripodal N,N,O ligand, Im(Ph2)NNO(tBu), for modeling the 2-His-1-carboxylate facial triad in metal complexes. The ligand demonstrates redox non-innocence, with phenolate oxidation as the first electrochemical response. It provides access to well-defined mononuclear, monoligated metal complexes, enabling accurate structural modeling of the 2H1C to be achieved.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Applied
Eduard Masferrer-Rius, Margarida Borrell, Martin Lutz, Miquel Costas, Robertus J. M. Klein Gebbink
Summary: The use of biologically inspired manganese catalysts with different ligand structures allows for selective oxidation of aromatic C-H bonds under specific solvent conditions. Introducing bulky groups into the ligand plays a key role in preventing catalyst inhibition by phenolate binding and providing higher catalytic turnover numbers.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Inorganic & Nuclear
Emily C. Monkcom, Hidde A. Negenman, Eduard Masferrer-Rius, Martin Lutz, Shengfa Ye, Eckhard Bill, Robertus J. M. Klein Gebbink
Summary: In this study, two new bioinspired N,N,O phenolate ligands were synthesized and their coordination chemistry with zinc(II) and iron(II) was explored. BenzImNNO readily formed homoleptic bisligated complexes, while the increased steric bulk of Im(Ph2)NNO promoted the formation of dinuclear complexes. The robustness of the ligand's coordination mode was demonstrated during oxidative transformations.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Cody B. van Beek, Nicolaas P. van Leest, Martin Lutz, Sander D. de Vos, Robertus J. M. Klein Gebbink, Bas de Bruin, Daniel L. J. Broere
Summary: This study presents a new dinucleating pincer ligand that enables metal-metal cooperativity and metal-ligand cooperativity, providing important insights and opportunities for catalytic hydrogen evolution reactions.
Article
Chemistry, Multidisciplinary
Cody B. van Beek, Lars Killian, Martin Lutz, Markus Weingarth, Arun S. Asundi, Ritimukta Sarangi, Robertus J. M. Klein Gebbink, Daniel L. J. Broere
Summary: This study describes the synthesis, characterization, and catalytic activity of a new class of diruthenium hydrido carbonyl complexes. These complexes exhibit good hydrogenation reactivity and selective semi-hydrogenation ability towards alkynes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Sander D. de Vos, Maartje Otten, Tim Wissink, Daniel L. J. Broere, Emiel J. M. Hensen, Robertus J. M. Klein Gebbink
Summary: In this study, the electrocatalytic hydrogen evolution performance of [Co(HBMIMPh2)(2)](BF4)(2) was compared to three other molecular cobalt hydrogen evolution reaction catalysts, showing that it performed well in terms of overpotential and Faradaic efficiency. Post-electrolysis X-ray photoelectron spectroscopy analysis revealed a minor cobalt contribution in the deposit formed from the catalyst. These observations indicate that the molecular design of the complexes plays a crucial role in determining the activity of the catalyst.
Article
Chemistry, Multidisciplinary
Rakesh Sen, Shounik Paul, Sriram Krishnamurthy, Anupama Devi, Ethayaraja Mani, R. J. M. Klein Gebbink, Soumyajit Roy
Summary: This study demonstrates with experimental evidence how the emulation of space-time symmetry breaking by electrochemical realization of a Time-Gel' can lead to the creation of matter. Time-Gel' is realized by inducing the gelation phenomenon of discrete molecular precursors, and the temporal information descriptor (Q) exhibits a power-law relationship (Q proportional to Phi(g)^n) with the volume fraction of the gel (Phi(g)). The exponent n is 5, indicating the divergence in matter creation. This finding further supports the understanding that the breaking of symmetry under conditions following Noether's theorem leads to the emergence of matter. In summary, this research proposes the idea of symmetry breaking and presents the electrochemical realization of the Time-Gel' model as an alternative explanation for the creation of matter based on Chemical Science.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Pouya Zaree, Ilhan Tomris, Sander D. de Vos, Roosmarijn van der Woude, Frits M. Flesch, Robertus J. M. Klein Gebbink, Robert P. de Vries, Roland J. Pieters
Summary: A miniaturized sensor containing graphene- and gold nanoparticles was functionalized with proteins for electrochemical detection. The interactions between molecules and proteins were observed and quantified using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The protein binders included carbohydrate ligands as small as carbohydrates and COVID-19 spike protein variants engaged in protein-protein interactions.
Article
Chemistry, Physical
Eduard Masferrer-Rius, Fanshi Li, Martin Lutz, Robertus J. M. Klein Gebbink
Summary: This study reports on the exploration of new biologically inspired manganese and iron complexes in enantioselective oxidation catalysis, showing the potential for enhancing enantioselectivities by tuning the environment around the catalytic active site. Using optimized conditions, manganese complex 2 exhibited effective enantioselective benzylic oxidation of a series of arylalkane substrates. Additionally, the new 4-pyrrolidinopyridine-based complexes showed promise in the asymmetric epoxidation of olefins.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Inorganic & Nuclear
Hugo Valdes, Ernesto Rufino-Felipe, Gerard van Koten, David Morales-Morales
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2020)
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)