Article
Chemistry, Organic
Xiaoting Wen, Jingxi He, Hui Xi, Qi Zheng, Weiping Liu
Summary: A general and practical methodology for the hydration of nitriles to primary amides enabled by manganese catalyst is described. This protocol demonstrates a broad substrate scope and good functional group tolerance, allowing for the synthesis of corresponding amides in good to excellent yields. Preliminary mechanistic studies suggest the involvement of metal-ligand cooperation (MLC) mode in the catalytic process.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
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
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
Multidisciplinary Sciences
Wenjun Yang, Ivan Yu Chernyshov, Robin K. A. van Schendel, Manuela Weber, Christian Muller, Georgy A. Filonenko, Evgeny A. Pidko
Summary: In this study, a highly efficient manganese pincer pre-catalyst was reported, displaying high TOF values (up to 41,000 h(-1)) and stability (TON up to 200,000) at loadings as low as 5-200 ppm. The crucial role of catalyst activation step for the catalytic performance and stability of the system was highlighted, with activation using hydride donor promoters significantly improving catalytic performance and eliminating induction times. Manganese-based hydrogenation catalysts are shown to be sensitive to high temperatures, but this pre-catalyst offers a promising alternative.
NATURE COMMUNICATIONS
(2021)
Review
Chemistry, Inorganic & Nuclear
Matthew T. Whited
Summary: This Perspective summarizes the common modes of cooperativity demonstrated for pincer frameworks featuring metal/main-group bonds, highlighting similarities among boron, aluminium, and silicon donors and identifying directions for further development.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Man-Man Xue, Jiarui Chang, Jie Zhang, Xuenian Chen
Summary: In this study, two types of platinum thiolate complexes were successfully synthesized and fully characterized. The results showed that these platinum complexes exhibited high catalytic activity in the hydrosilylation of aldehydes and ketones. Additionally, the catalytic system showed good compatibility with the subsequent hydrolysis reaction.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Organic
Guofu Zhang, Huihui Miao, Chenfei Guan, Chengrong Ding
Summary: The direct transformation of aryl carboxylic acids to aryl nitriles has been achieved through palladium-catalyzed decarbonylative cyanation without the use of a base. Successful analysis of the decarbonylative cyanation of drug molecules and gram-scale reactions validates the practicality and operability of this method.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Quan-Quan Zhou, You-Quan Zou, Sayan Kar, Yael Diskin-Posner, Yehoshoa Ben-David, David Milstein
Summary: A simple and efficient system utilizing a pincer complex of manganese has been developed for the hydration and alpha-deuteration of nitriles, providing amides, alpha-deuterated nitriles, and alpha-deuterated amides with good selectivity and moderate to good yields. The transformation proceeds through activation of nitriles via metal-ligand cooperation, generating key intermediates for further reactions.
Article
Chemistry, Physical
Yo-hei Nagasaki, Masazumi Tamura, Mizuho Yabushita, Yoshinao Nakagawa, Keiichi Tomishige
Summary: The silica-supported molybdenum oxide catalyst showed high efficiency and reusability in the dehydration of various amides. The results of catalyst characterizations and activity tests revealed that the strong acid sites formed by the interaction between silanol groups and molybdenum oxide species, along with the acid-base pair sites, played a crucial role in the dehydration reaction.
Article
Chemistry, Multidisciplinary
Anthony P. Deziel, Sahil Gahlawat, Nilay Hazari, Kathrin H. Hopmann, Brandon Q. Mercado
Summary: This study compares the rates of CO2 insertion into various metal alkyl bonds and provides fundamental information for the development of new catalysts for CO2 utilization.
Article
Chemistry, Inorganic & Nuclear
Mohammad Ameskal, Rachid Taakili, Ekaterina S. Gulyaeva, Carine Duhayon, Jeremy Willot, Noel Lugan, Christine Lepetit, Dmitry A. Valyaev, Yves Canac
Summary: An efficient synthesis of stable Pd(II) complexes with diverse coordination frameworks is developed. The complex bearing a nonsymmetrical NHC core pincer scaffold shows competitive donor properties. The bonding situation of C- and P-bound phosphonium ylide fragments within the same molecule is studied for the first time.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
David Decker, Zhihong Wei, Jabor Rabeah, Hans-Joachim Drexler, Angelika Brueckner, Haijun Jiao, Torsten Beweries
Summary: In this study, a Co(ii) PNNH pincer catalyst system was applied for the highly E-selective transfer semihydrogenation of internal diaryl alkynes. The catalyst system showed high activity, short reaction times, and operated under mild conditions.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Heiko Schratzberger, Berthold Stoeger, Luis F. Veiros, Karl Kirchner
Summary: In this study, two stable Fe(II) alkyl complexes were successfully synthesized and their catalytic performance in transfer hydrogenation reactions was investigated. The results showed that these complexes exhibited good activity and selectivity for hydrogenation of various alkynes. Through both experimental and theoretical investigations, the researchers also revealed the reaction mechanism.
Review
Chemistry, Organic
Pulluparambil Xavier Thresia Rinu, Rose Mary Philip, Gopinathan Anilkumar
Summary: The Negishi coupling is a significant C-C bond-forming reaction for synthesizing valuable organic compounds. In recent years, low-cost transition metal catalysts (Fe, Co, Ni, and Cu) have been developed as alternatives to conventional Pd catalyst, showing high efficiency and potential application in natural product synthesis. This review focuses on the recent achievements in low-cost transition metal-based Negishi coupling reactions, covering reports from 2016.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Marta Fernandez-Buenestado, Rosie J. Somerville, Joaquin Lopez-Serrano, Jesus Campos
Summary: We present a novel iridium system with a long-tethered PGeP ligand, which allows access to the less common germylene form, never reported before for an 'NHC-type' Ge ligand. Computational studies confirm its bonding, and we demonstrate its application in the catalytic dehydrogenation of formic acid, showcasing the potential of this underdeveloped ligand type.
CHEMICAL COMMUNICATIONS
(2023)
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)