Article
Chemistry, Inorganic & Nuclear
Chandan Nandi, Arindam Roy, Ketaki Kar, Marie Cordier, Sundargopal Ghosh
Summary: A variety of cobalt-rich metallaheteroboranes were synthesized by treating compounds such as nido-[(Cp*Co)(2)B6H6E2] (E = Se, Te) and [Ru-3(CO)(12)] under thermolytic conditions. These metal-rich clusters have different core structures and were characterized using NMR, IR, ESI-MS, and X-ray diffraction analysis techniques.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Inorganic & Nuclear
Wei Lv, Song-De Han, Xiao-Yu Li, Guo-Ming Wang
Summary: This review discusses the synthesis strategies of metal clusters or cluster-based frameworks based on tripodal alcohol ligands and summarizes the interesting structural categories and magnetic phenomena. The tripodal alcohol ligands remain a major choice for assembling novel metal clusters, and this review will provide valuable guidance for researchers studying metal clusters-based frameworks.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Luis M. Aguirre Quintana, Yan Yang, Arun Ramanathan, Ningxin Jiang, John Bacsa, Laurent Maron, Henry S. La Pierre
Summary: The study investigates the reactivity of complexes with nitrous oxide, S-8, or Se-0, revealing different reactivity of Fe complexes and inertness of Co complexes.
CHEMICAL COMMUNICATIONS
(2021)
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
Chemistry, Multidisciplinary
Jamie S. S. Ritch
Summary: Chalcogen-substituted carbenes were computationally examined using density functional theory to assess their stability and reactivity. The study found that these carbenes have the potential to serve as valuable ancillary ligands for stabilizing low-valent metals or paramagnetic main group molecules. Additionally, a simple and effective computational method for evaluating the sigma donor ability and pi acidity of carbenes was presented.
Article
Chemistry, Inorganic & Nuclear
Fangcheng Liu, Jiaheng Lin, Jianming Ji, Yong Na, Sayaka Uchida, Xikui Fang
Summary: A coordination macrocycle composed of eight [PМо8O27](-) clusters connected by organic and inorganic compounds is presented. The compound shows high proton conductivity, with imidazolium ions playing a critical role.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Halyna Buvailo, Valeriya G. Makhankova, Vladimir N. Kokozay, Artem A. Babaryk, Irina Omelchenko, Svitlana Shishkina, Dariusz C. Bienko, Julia Jezierska, Alina Bienko
Summary: A one-pot reaction using a copper source (metallic powder Cu0 or Cu2+ salts) and bpy (2,2'-bipyridine) in the presence of (NH4)2HPO4 and (NH4)6Mo7O24‧4H2O produces heterometallic hybrid compounds with specific structures. These compounds exhibit selectivity in the sorption of methylene blue and show strong antiferromagnetic metal-metal exchange interactions in magnetic measurements.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Gev Dovrat, Svetlana Pevzner, Eric Maimon, Radion Vainer, Olga Iliashevsky, Yeshayahu Ben-Eliyahu, Philippe Moisy, Armand Bettelheim, Israel Zilbermann
Summary: The coordination and redox chemistry of aqueous Ce-IV/III macrocyclic compounds were studied using the ligands DOTA and DOTP. It was found that DOTA forms a highly ordered oxo-hydroxo structure, while the presence of DOTP leads to the decomposition of the complex. The study also suggests that cyclen-derived ligands are better suited for encapsulating and stabilizing softer cations than harder ones.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Duomei Xue, Di Wu, Zeren Chen, Ying Li, WeiMing Sun, Jingyao Liu, Zhiru Li
Summary: The Zintl cluster Ge9Be has been identified as a potential member of the superatom family due to its similarity to chalcogen elements. It has the ability to form stable ionic compounds and covalent compounds with multiple valence superatoms. Utilizing solid Zintl clusters, stable superatom motifs can be designed and synthesized for specific characteristics-oriented applications.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Anurag Noonikara-Poyil, Alvaro Munoz-Castro, Andrii Boretskyi, Pavel K. Mykhailiuk, H. V. Rasika Dias
Summary: Polyfluorinated, electron-withdrawing, and sterically demanding ligands are important in chemistry. The study presented a new ligand [Ph2B(3-(SF5)Pz)(2)](-) that showed improved efficiency in copper catalyzed reactions compared to trifluoromethylated counterparts.
Article
Chemistry, Inorganic & Nuclear
Ai-Min Li, Yi Wang, Peter Y. Zavalij, Yu-Sheng Chen, Alvaro Munoz-Castro, Bryan W. Eichhorn
Summary: The reaction of [Nb(eta(6)-C6H3Me3)(2)] with ethylenediamine and K4Ge9 in the presence of 18-crown-6 yielded two cluster ions, 1 and 2, with distinct [Ge-6] motifs. These crystalline solids are dark brown, air-sensitive, and sparingly soluble or insoluble in most solvents. Characterization of cluster ions 1 and 2 was done through various techniques, revealing the presence of an electron-deficient carborane-like subunit in 1 and a two-center, two-electron cyclohexane-like subunit in 2.
INORGANIC CHEMISTRY
(2021)
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
William Taylor, Brenna K. Cashman, Zhu-Lin Xie, Karen K. Ngo, Michael J. Rose
Summary: This study tests the hypothesis that neutral, heavy-atom stibine donors can enhance spin-orbit coupling on light 3d transition metals. Through a novel synthetic route, the researchers successfully coordinated a paramagnetic 3d metal ion cobalt(II) with neutral stibine ligands. The results reveal that heavy pnictogens can increase the D value, indicating a larger zero-field splitting. The precise mechanism of the heavy atom effect on the D value remains unclear.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Maxime Beau, Olivier Jeannin, Marc Fourmigue, Emmanuel Aubert, Enrique Espinosa, Sunhee Lee, Won-Sik Han, Ie-Rang Jeon
Summary: We demonstrate that the presence of linear ditopic neutral Lewis bases can drive the formation of 1D extended supramolecular networks with o-closo-(TeMe)2carborane, through efficient C-TeMIDLINE HORIZONTAL ELLIPSISN chalcogen bonding interactions.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yu Dang, Jingdong Yan, Xueling Hou, Hongsheng Shi
Summary: Three polyborates, LiNa11B28O48, Li1.45Na7.55B21O36, and Li2Na4Ca7Sr2B13O27F9, were synthesized via high-temperature solution method. They exhibit high-symmetry [B12O24] units, but differ in dimensions of their anion groups. LiNa11B28O48 has a three-dimensional anionic structure of (3)[B28O48](infinity) framework, composed of [B12O24], [B15O30], and [BO3] units. Li1.45Na7.55B21O36 has a one-dimensional anionic structure of (1)[B21O36](infinity) chain consisting of [B12O24] and [B9O18] units. Li2Na4Ca7Sr2B13O27F9 has a zero-dimensional anionic structure, composed of isolated units of [B12O24] and [BO3]. The anionic groups in these compounds have high polymerization, enhancing the structural diversity of borates. The crystal structure, synthesis, thermal stability, and optical properties are discussed in detail for guiding the synthesis and characterization of novel polyborates.
Article
Chemistry, Inorganic & Nuclear
Suman Gomosta, Sourav Kar, Alaka Nanda Pradhan, Subhash Bairagi, Venkatachalam Ramkumar, Sundargopal Ghosh
Summary: A series of metal-rich metallaboranes of groups 7 and 9 with triply bridging borylene and boride units have been isolated and structurally characterized. Experimental and computational studies reveal a substantial amount of overlap between the metal frameworks and borylene/boride units.
Article
Chemistry, Multidisciplinary
Sourav Kar, Subhash Bairagi, Gaurav Joshi, Eluvathingal D. Jemmis, Sundargopal Ghosh
Summary: The synthesis and structural characterization of two new octaborane analogues were achieved to stabilize the dynamic B-8 skeleton, providing insights into the structural and electronic stability of the B-8 core. Isodesmic equations for the formation of higher analogues of the B-n core were proposed, indicating that the formation becomes unfavorable as the polyhedron size increases (n>10) regardless of the metal used.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Inorganic & Nuclear
Sourav Kar, Alaka Nanda Pradhan, Sundargopal Ghosh
Summary: Metal-rich metallaborane clusters with triply and tetra bridging borylenes, and multicentred boride units have attracted renewed interest due to their diverse reactivity and unique structural features. Recent advancements in synthetic strategies utilizing transition metals have enabled the isolation of borylene species and the encapsulation of boride inside different clusters. The bonding ability of borylene and boride with multiple transition metals has led to the formation of a series of metal-rich metallaboranes.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Inorganic & Nuclear
Sourav Kar, Subhash Bairagi, Ketaki Kar, Thierry Roisnel, Vincent Dorcet, Sundargopal Ghosh
Summary: A series of triborane and tetraborane analogues have been successfully synthesized and structurally characterized using chalcogenatoborate ligands with sulfur and selenium. Some of these compounds exhibit rare structural features, such as bimetallic and trimetallic tantalum heteroborane structures.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Chandan Nandi, Ketaki Kar, Sourav Gayen, Thierry Roisnel, Sundargopal Ghosh
Summary: A procedure for single-cage cluster expansion of open cage dimetallaoctaboranes(12) was established through investigating the chemistry of nido-[(Cp*M)(2)B6H10] with various chalcogen-based borate ligands. The synthesized dimetallachalcogenaboranes exhibit unique coordination structures with sulfur, selenium, and tellurium ligands, providing insights into the bonding of these CS2- and CS3-bridged decaborane analogues.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Samreet Khirid, Dilip Kumar Jangid, Rathindranath Biswas, Sangeeta Meena, Subash C. Sahoo, Ved Prakash Verma, Chandan Nandi, Krishna Kanta Haldar, Rajendra S. Dhayal
Summary: A silver(I) ferrocenyl dithiophosphonato 1D polymer was synthesized through a ligand exchange reaction, generating two different silver-sulfur-phosphorus clusters. The structures of these clusters were confirmed by single crystal X-ray crystallographic analyses, revealing distinct features in their structural arrangements.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Kriti Pathak, Sourav Gayen, Suvam Saha, Chandan Nandi, Shivankan Mishra, Sundargopal Ghosh
Summary: By treating metal complexes and heterocyclic borate ligands, borate complexes with uncommon coordination were obtained. In addition, these complexes showed unique hydroboration reaction with alkynes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Kriti Pathak, Chandan Nandi, Sundargopal Ghosh
Summary: Metallaheteroborane clusters containing group-16 elements have gained significant attention for their ability to synthesize high-nuclearity clusters. Recent developments in their chemistry, including hydrogenation and isomerization of olefins, dehydrogenation of clusters, and the development of new synthesis routes, have further increased the interest in these novel metallaheteroborane clusters. The chemistry of metallaheteroboranes with chalcogen(s) as the heteroatom(s) has seen significant growth in terms of synthetic methodology and the emergence of unique structural frameworks. The review provides an overview of the diverse structural motifs and advancements in the chemistry of metallachalcogenaborane clusters.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Inorganic & Nuclear
Sourav Kar, Ketaki Kar, Subhash Bairagi, Moulika Bhattacharyya, Monojit Ghosal Chowdhury, Sundargopal Ghosh
Summary: Two electron precise early transition metal borate complexes were successfully synthesized by reacting with chalcogen-based borate ligands, showing unique coordination and structures. Characterization and DFT calculations provided insights into the bonding and electronic structures of these bimetallic borate species.
INORGANICA CHIMICA ACTA
(2022)
Article
Chemistry, Inorganic & Nuclear
Sourav Kar, Ketaki Kar, Sundargopal Ghosh
Summary: In this study, photolysis was used to exploit the reactive chalcogen centers in preformed metallaheteroboranes for cluster growth reactions, resulting in the synthesis of vertex-fused metallaheteroborane clusters. These clusters consist of square-pyramidal metal-boron cores and butterfly metal-sulfur cores.
Article
Chemistry, Multidisciplinary
Sourav Kar, Subhash Bairagi, Anagha Haridas, Gaurav Joshi, Eluvathingal D. Jemmis, Sundargopal Ghosh
Summary: This study reports the synthesis of a triple-decker sandwich complex of titanium with a nearly planar six-membered [B6H6] ring. The achievement of the planar structure is attributed to the specific structural pattern and the larger ring size. However, the bond strength is reduced due to significant electron delocalization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Chandan Nandi, Arindam Roy, Ketaki Kar, Marie Cordier, Sundargopal Ghosh
Summary: A variety of cobalt-rich metallaheteroboranes were synthesized by treating compounds such as nido-[(Cp*Co)(2)B6H6E2] (E = Se, Te) and [Ru-3(CO)(12)] under thermolytic conditions. These metal-rich clusters have different core structures and were characterized using NMR, IR, ESI-MS, and X-ray diffraction analysis techniques.
INORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Sourav Kar, Debipada Chatterjee, Jean-Francois Halet, Sundargopal Ghosh
Summary: Through thermolysis reactions, boron-containing tri-niobium polychalcogenide species were successfully isolated and characterized using various methods. The study revealed the significant role of the tri-niobium framework in stabilizing borate, borane, and chalcogen units.
Article
Chemistry, Inorganic & Nuclear
Kriti Pathak, Shivankan Mishra, Chandan Nandi, Suvam Saha, Sundargopal Ghosh
Summary: Several dihydridoborate group 7 metal complexes with different chelation modes have been synthesized and their structures and bonding nature have been described. Photolysis of [M-2(CO)(10)] with these borate species resulted in the formation of dihydridoborate complexes. The electronic structures of these complexes have been investigated using density functional theory calculations.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Kriti Pathak, Chandan Nandi, Jean-Francois Halet, Sundargopal Ghosh
Summary: The synthesis, isolation, and structural characterization of unique metal-rich, diamagnetic cobaltaborane clusters were reported in this study. These clusters were obtained from reactions of different reagents with cobalt sources. Characterization of the compounds was carried out using various techniques, and density functional theory calculations were used to study the bonding and electronic structures of these complexes in depth.
