Article
Chemistry, Organic
Mariia M. Melero, Zuzanna Klosek, Carmen Ramirez de Arellano, Andrea Olmos
Summary: Poly(pyrazolyl)borate ligands can be synthesized by reacting highly reactive haloboranes with in situ formed pyrazolides under mild conditions. This versatile method allows for the selective synthesis of bis-, tris-, or tetrakis(pyrazolyl)borates and permits the use of previously inaccessible functional groups on the heterocyclic moieties. Additionally, bulky sodium and thallium(I) poly(pyrazolyl)borates with reduced donating ability have been obtained for the first time.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Miriam Gerstel, Ingo Koehne, Johann Peter Reithmaier, Rudolf Pietschnig, Mohamed Benyoucef
Summary: This study investigates the synthesis of two geminal bisphosphonate ester-supported Ln(3+) complexes and the optical properties of the neodymium(III) complex. The results are compared to known mono-phosphonate ester-based Nd3+ complexes. Micro-photoluminescence spectroscopy reveals the characteristic metal-centered emission bands in the NIR region and two emissions from F-4(5/2), H-2(9/2) -> I-4(J) transitions. The PL spectroscopy of equimolar complex solutions shows higher emission intensity for mono-phosphonate ester-based complexes compared to their bisphosphonate ester congener. Temperature-dependent PL measurements and low-temperature polarization-dependent measurements are also discussed.
Article
Chemistry, Inorganic & Nuclear
Yuji Mikata, Yasuko Kuroda, Kyoko Naito, Kana Murakami, Chihiro Yamamoto, Shoko Yabe, Shizuka Yonemura, Arimasa Matsumoto, Hajime Katano
Summary: Seven new bis(mu-oxo)dimanganese complexes with Mn-2(iii,iii) or Mn-2(iii,iv) oxidation states were prepared using quinoline- and isoquinoline-based tetraamine ligands. Quinoline complexes stabilize the Mn-2(iii,iii) oxidation state, while isoquinoline ligands afford Mn-2(iii,iv) complexes. A systematic comparison of 14 complexes highlights the distinct deviation of quinoline and tripodal amine motifs in this ligand series.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Organic
Maxym Tansky, Zipeng Gu, Robert J. Comito
Summary: This report introduces a new method for the synthesis of bis(pyrazolyl)alkanes, avoiding common issues in traditional methods and suitable for systematic ligand optimization. Additionally, new reactants including pyrazoles and aldehydes have been explored, providing a new direction for the development of novel catalysts.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Ritu Yadav, Bindusagar Das, Ashi Singh, Ankita Anmol, Ankita Sharma, Chinmoy Majumder
Summary: This study reports the synthesis and characterization of BICAAC-stabilized phosphinidenes. X-ray crystallography and NMR spectroscopy were used to characterize the compounds, and theoretical calculations indicated the presence of characteristic double bonds.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ritu Yadav, Bindusagar Das, Ashi Singh, Ankita Anmol, Ankita Sharma, Chinmoy Majumder
Summary: In this study, the synthesis and characterization of bicyclic (alkyl)(amino)carbene (BICAAC)-stabilized phosphinidenes were reported. The compounds were obtained through reactions between trihalophosphine and BICAAC, and their structures were confirmed by X-ray crystallography and NMR spectroscopy. Theoretical calculations revealed the presence of predominant C(carbene)-P double bond characteristic in these compounds.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Mukundam Vanga, Vo Quang Huy Phan, Jiang Wu, Alvaro Munoz-Castro, H. V. Rasika Dias
Summary: Thallium(I) complexes of B-methylated and B-phenylated tris(pyridyl)borates with trifluoromethyl groups at the pyridyl ring 6-positions have been synthesized and compared to the tris(pyrazolyl)borate analogues. The coordination modes and spectroscopic features of these complexes have been studied, revealing distinct differences between the two scorpionate families. The steric demands of the ligands have been quantified using the buried volume concept. Ligand transfer chemistry from these complexes to copper(I) under ethylene has also been investigated, and computational analyses of the coordination modes have been performed.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Hidehito Komatsuzaki, Kazunari Ohira, Shun Tadokoro, Yuta Yamasaki, Hitomi Oouchi, Minoru Satoh, Tomohiro Agou, Yuya Tanaka, Munetaka Akita, Jun Nakazawa, Shiro Hikichi
Summary: A dinuclear cobalt(II) complex with a metalhydroxide moiety acting as a nucleophile was synthesized and structurally characterized, showing reactivity towards 4-nitrophenyl acetate and CO2 similar to metalloenzymes. The complex displayed a symmetry plane and distorted five-coordinated structures for its cobalt ions, with shorter bond lengths compared to a previously reported dimanganese(II) analog complex due to the stronger Lewis acidity of cobalt(II).
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Pokpong Rungthanaphatsophon, Nigam P. Rath, Jamie M. Neely
Summary: This study describes the preparation of bis(pyrazolyl)cyclopentadienyl iron complexes, where isopropyl substitution enhances the solubility of the iron chloride precursor and modification of the cyclopentadienyl substituent leads to the formation of substituted ferrocene complexes.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
G. Reshma, S. Nakul, P. M. Mahitha, Naveen Kulkarni, Dineshchakravarthy Senthurpandi, Sharma S. R. K. C. Yamijala, William W. Brennessel, William D. Jones
Summary: This study investigates the preparation, coordination chemistry, and molecular structure of half-sandwich ruthenium(II) complexes. The results demonstrate that the steric factors of the ligand substituents have a profound influence on the complexes, and an interesting solvent-induced geometrical change is documented.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Shuruthi Senthil, Michael R. Gau, Daniel J. Mindiola
Summary: The complex [(BDI)VCl(N{SiMe3}2)] can be reduced with Na/NaCl in the presence of white P4 to form a dinuclear species [(BDI)V(N{SiMe3}2)]2(mu-eta 1:eta 1-P6), which features a chairlike tricyclic [P6]2- scaffold bridging two V centers. The structures of complexes 1 and 2 have been characterized, and a formation pathway for the chairlike tricyclic [P6]2- scaffold in 2 is proposed.
Article
Nanoscience & Nanotechnology
Peiyu Fang, Liding Wang, Ge Zhan, Wenchao Yan, Peihao Huo, Ao Ying, Yuewei Zhang, Zifeng Zhao, Gang Yu, Yanyi Huang, Shaolong Gong, Lian Duan, Zhiwei Liu, Zuqiang Bian, Chunhui Huang
Summary: This research achieved efficient bright blue emission by tuning the structure of complexes. Using the Ce(III) complex as emitter, the OLED showed high external quantum efficiency and luminance. The study demonstrated that lanthanide complexes can serve as important emitters for blue OLEDs, offering new insights for improving OLED performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Denis A. Bashirov, Dmitry S. Kolybalov, Olga A. Mironova, Taisiya S. Sukhikh, Sergey N. Konchenko
Summary: In this study, homoleptic complexes containing three bulky formamidinate ligands were successfully synthesized using the salt metathesis approach. The method was found to be unsuitable for metals smaller than Eu, and a spontaneous reduction of Eu(iii) to Eu(ii) was observed. UV-Vis spectroscopy monitoring indicated that the reaction is a zero-order process.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Anurag Noonikara-Poyil, Alvaro Munoz-Castro, H. V. Rasika Dias
Summary: This study describes the isolation and full characterization of a thermally stable, copper(I) acetylene complex using a highly fluorinated bis(pyrazolyl)borate ligand support, as well as the details of a related copper(I) complex. Raman data show significant red-shifts in C equivalent to C stretch of different alkynes bound to copper(I), with computational analysis indicating that the interaction is primarily of the electrostatic character. The study also highlights the catalytic activity of a mononuclear copper complex in [3 + 2] cycloadditions and compares its effectiveness with a trinuclear copper catalyst.
Article
Chemistry, Inorganic & Nuclear
M. Angeles Alvarez, M. Esther Garcia, Daniel Garcia-Vivo, Miguel A. Ruiz, Patricia Vega
Summary: Phosphanyl complexes were synthesized through photolysis and reactions, and heterometallic bridged derivatives were prepared using various synthetic strategies. The yields of products obtained from photochemical reactions were low, but higher yields were achieved through reactions with halide complexes. The obtained derivatives exhibit important chemical properties and are valuable for further research.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
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)