Review
Chemistry, Inorganic & Nuclear
Yidan Wang, Bo Zhang, Shuai Guo
Summary: The combination of NHC and pincer framework in transition metal complexes has been widely studied and applied in various fields, including catalysis and optical material chemistry. This minireview focuses on the synthesis, reactivity study and applications of metal pincer NHCs.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(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, Multidisciplinary
Janis Musso, Jordan De Jesus Silva, Mathis J. Benedikter, Jonas Groos, Wolfgang Frey, Christophe Coperet, Michael R. Buchmeiser
Summary: Recent studies have shown that cationic d(0) group 6 olefin metathesis catalysts exhibit higher activity compared to their neutral counterparts, and their catalytic performance is greatly enhanced by immobilization on silica.
Article
Chemistry, Multidisciplinary
Tian Liu, Yanping Ma, Gregory A. A. Solan, Yang Sun, Wen-Hua Sun
Summary: Six different examples of 4,4'-dichlorobenzhydryl-substituted 2,6-bis(arylimino)pyridyl-iron(II) chloride complex have been synthesized and characterized. Fe1-Fe5 exhibited high productivities when treated with MAO or MMAO as activators. Fe6, on the other hand, showed either inactivity or low activity. This class of iron catalyst showed long lifetimes with catalytic activities up to 10.77 x 10(6) g PE mol-1(Fe) h(-1).
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Marc Schnierle, Marie Leimkuhler, Mark R. Ringenberg
Summary: The bidentate ligand TzPy showed noninnocent behavior and could be modified by dienophiles. The kinetic analysis of the reaction between [1](+) and ViFc yielded Delta G double dagger(298 K) = 67 kJ mol(-1), while that of [1](+) and EthFc was Delta G double dagger(298 K) = 83 kJ mol(-1). The electrochemical reduction mechanism of [1Fc](+) was studied using cyclic voltammetry and UV-vis SEC experiments, supported by DFT calculations.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Kei Fuchigami, Michael B. Watson, Giang N. Tran, Nigam P. Rath, Liviu M. Mirica
Summary: A series of (N2P2) Ni-II complexes stabilized by a modified tetradentate pyridinophane ligand containing two phosphonite groups were synthesized and characterized. The Ni-I oxidation state was found to be accessible at moderate redox potentials for these Ni-II complexes, and the N2P2 ligand was able to support various Ni species involved in catalytic C-C bond formation reactions.
Article
Chemistry, Physical
Wiebke Wackerow, Zeynabou Thiam, Edy Abou-Hamad, Walid Al Maksoud, Mohamed N. Hedhili, Jean-Marie Basset
Summary: The article discusses the unique catalytic properties of tungsten-hydrides supported on oxide supports, suggesting that supported tungsten-hydride complexes coexist on the support as bis-hydride and tris-hydride species.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Keith Izod, Atheer M. M. Madlool, Alex Craig, Paul G. G. Waddell
Summary: The reactions between SnCl2 and alkali metal phosphido-borane complexes produce tris(phosphido-borane)stannate complexes. Crystallography confirms an anion with a trigonal pyramidal tin center coordinated by the P atoms of the ligands. These anions coordinate to alkali metal cations via their BH3 hydrogen atoms, forming monomers, dimers, and polymers depending on the alkali metal and phosphorus substituents. In contrast, reactions with [tBu(2)P(BH3)]M (M = Li, Na) yield the known hydride [M{tBu(2)P(BH3)}(2)SnH] according to NMR spectroscopy.
DALTON TRANSACTIONS
(2023)
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, 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, Inorganic & Nuclear
Shuo Wang, Han-Jung Li, Ting-Shen Kuo, Li-Ching Shen, Hsueh-Ju Liu
Summary: The synthesis and characterization of a series of divalent Ge and Sn compounds with an ambiphilic nature is described. These compounds are obtained by forcing divalent group 14 elements into a planar geometry using a sterically constrained pincer-type ligand. The reactions of these compounds with various Lewis bases and acids are investigated, showing formation of both dimeric and monomeric species.
Article
Chemistry, Multidisciplinary
Ryan M. Kirk, Anthony F. Hill
Summary: This study reports the first examples of late transition metal eta(5)-arsolyls serving as ditopic donors to extraneous metal centres through both conventional and polar-covalent interactions.
Article
Chemistry, Inorganic & Nuclear
Mukundam Vanga, Anurag Noonikara-Poyil, Jiang Wu, H. V. Rasika Dias
Summary: The pyridine-based poly(pyridyl)borates are a recent addition to the scorpionate family, and their applications in the isocyanide and carbonyl chemistry of copper(I) and silver(I) have been described. The X-ray crystal structures of copper and silver complexes reveal that the bis- and tris(pyridyl)borate ligands coordinate to the metal ions using only two pyridyl moieties.
Article
Chemistry, Multidisciplinary
Narayan Ch Jana, Subrat Sethi, Ratnakar Saha, Bidraha Bagh
Summary: The need for sustainable development in the modern era has led to a strong trend of research in transforming biomass into fine chemicals. This study focuses on the aerobic oxidation of lignin-derived monomeric phenolics, specifically vanillyl alcohol, to produce vanillin, an important aroma chemical. Four copper(II) complexes were synthesized and tested for their catalytic activity, with the mononuclear complex 2b displaying the best performance. The catalyst showed high selectivity and recyclability, making it a promising candidate for green and sustainable production of vanillin.
Article
Chemistry, Inorganic & Nuclear
Jian-Hua Ding, Yu-Feng Liu, Zhao-Teng Tian, Pei-Jie Lin, Feng Yang, Ke Li, Guo-Ping Yang, Yong-Ge Wei
Summary: A novel uranyl-containing polytungstate, U-3, was synthesized using a Keggin-type precursor and UO2(OAc)2, and characterized by X-ray diffraction and various techniques. U-3 exhibited a quadrahedron-like structure with a central {K-4(UO2)(3)(H2O)(3)} cluster surrounded by {α-SiW9} and {γ-SiW10} building units. Furthermore, U-3 showed good catalytic activity in the dehydration condensation of aldehydes, acetoacetates, and urea to synthesize dihydropyrimidin-2(1H)-ones with solvent-free conditions, water as the sole by-product, available starting materials, good compatibility, and operational simplicity.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
I. Joseph Brackbill, Iskander Douair, Daniel J. Lussier, Michael A. Boreen, Laurent Maron, John Arnold
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Inorganic & Nuclear
Trevor D. Lohrey, Emmanuel A. Cortes, Robert G. Bergman, John Arnold
INORGANIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Michael A. Boreen, Karl N. McCabe, Trevor D. Lohrey, Fabian A. Watt, Laurent Maron, Stephan Hohloch, John Arnold
INORGANIC CHEMISTRY
(2020)
Review
Chemistry, Analytical
Mark D. Straub, John Arnold, Julianna Fessenden, Jaqueline L. Kiplinger
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jade Fostvedt, Michael A. Boreen, Robert G. Bergman, John Arnold
Summary: This study demonstrates the formation of a diverse array of organic and organometallic products containing newly formed C-C bonds via successive methyl transfers from di-, tri-, and tetramethyl Ta(V) precursors to unsaturated small molecule substrates. The reactions of Ta(V) methyl complexes with CO led to the formation of oxo enolate Ta(V) products and imido enamine Ta(V) products. Surprisingly, a new dianionic scorpionate ligand was formed through a reaction involving methyl transfer from the metal center. Mechanistic studies revealed a new reaction pathway in early transition metal chemistry.
INORGANIC CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Erik T. Ouellette, Julian S. Magdalenski, Robert G. Bergman, John Arnold
Summary: Low-valent transition metalates are highly reactive chemical reagents that find applications in organic synthesis, small-molecule activation, transient species stabilization, and M-E bond formation. Recent studies have discovered new types of highly reactive metalates without traditional carbonyl ligands. These metalates display unique reactivity in small-molecule activation, metal-metal bond formation, and heterometallic complex synthesis.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Anukta Jain, Jade Fostvedt, Benjamin M. Kriegel, David W. Small, Lauren N. Grant, Robert G. Bergman, John Arnold
Summary: In this study, the reactivity between a beta-diketiminate-supported niobium(III) imido complex and alkyl azides was demonstrated, resulting in the formation of niobatetrazene complexes. The reaction mechanism was also determined using computational methods.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Michael A. Boreen, Christopher Z. Ye, Andrew Kerridge, Karl N. McCabe, Brighton A. Skeel, Laurent Maron, John Arnold
Summary: This study investigates the mechanism of isomerization of uranium complexes. Experimental and computational studies reveal two different intramolecular C-H activation mechanisms involved.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Erik T. Ouellette, Julian S. Magdalenski, Robert G. Bergman, John Arnold
Summary: We report the synthesis and characterization of a novel rhenium-group 9 heterobimetallic diazenido species and its related diazenido and hydride complexes. Furthermore, we demonstrate the possibility of N-C bond formation in heterobimetallic complexes and investigate their properties using spectroscopy and computational studies.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Christopher Z. Ye, Iker Del Rosal, Michael A. Boreen, Erik T. Ouellette, Dominic R. Russo, Laurent Maron, John Arnold, Clement Camp
Summary: Reaction of potassium pentamethylcyclopentadienyl iridate tris-hydride with UCl4 and ThCl4 led to the generation of multimetallic complexes with different hydride bonding modes. Computational studies suggest that the bonding between U/Th and Ir is significant and involving f-orbitals. The variation in hydride bonding is attributed to differences in dispersion effects.
Review
Chemistry, Multidisciplinary
Gabriela I. Vargas-Zuniga, Michael A. Boreen, Daniel N. Mangel, John Arnold, Jonathan L. Sessler
Summary: The diverse coordination modes and electronic features of actinide complexes of porphyrins and related oligopyrrolic systems have been the subject of interest since the 1960s. Most work has focused on thorium and uranium, but the ligand environments provided by porphyrinoids have led to the stabilization of unique complexes with early actinides. This review summarizes key examples of prophyrinoid actinide complexes, with emphasis on synthesis, structure, electronic features, and reactivity patterns of representative systems.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Inorganic & Nuclear
Erik T. Ouellette, Ambre Carpentier, I. Joseph Brackbill, Trevor D. Lohrey, Iskander Douair, Laurent Maron, Robert G. Bergman, John Arnold
Summary: Salt metathesis reactions between a low-valent rhenium(I) complex and a series of amidinate-supported tetrylenes led to the formation of rhenium metallotetrylenes with varying extents of Re-E multiple bonding. Temperature played a crucial role in the reactions, leading to isolation of unusual products under different conditions, reflecting the complexity of these metal complexes. Bonding interactions within these complexes were discussed through various spectroscopic, structural, and computational investigations.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Liane M. Moreau, Alexandre Herve, Mark D. Straub, Dominic R. Russo, Rebecca J. Abergel, Selim Alayoglu, John Arnold, Augustin Braun, Gauthier J-P Deblonde, Yangdongling Liu, Trevor D. Lohrey, Daniel T. Olive, Yusen Qiao, Julian A. Rees, David K. Shuh, Simon J. Teat, Corwin H. Booth, Stefan G. Minasian
Article
Chemistry, Multidisciplinary
Michael A. Boreen, Guodong Rao, David G. Villarreal, Fabian A. Watt, R. David Britt, Stephan Hohloch, John Arnold
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Trevor D. Lohrey, Jade Fostvedt, Robert G. Bergman, John Arnold
CHEMICAL COMMUNICATIONS
(2020)
