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1

Salzer, A. "Nomenclature of Organometallic Compounds of the Transition Elements (IUPAC Recommendations 1999)." Pure and Applied Chemistry 71, no. 8 (1999): 1557–85. http://dx.doi.org/10.1351/pac199971081557.

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Organometallic compounds are defined as containing at least one metal-carbon bond between an organic molecule, ion, or radical and a metal. Organometallic nomenclature therefore usually combines the nomenclature of organic chemisty and that of coordination chemistry. Provisional rules outlining nomenclature for such compounds are found both in Nomenclature of Organic Chemistry, 1979 and in Nomenclature of Inorganic Chemistry, 1990This document describes the nomenclature for organometallic compounds of the transition elements, that is compounds with metal-carbon single bonds, metal-carbon multiple bonds as well as complexes with unsaturated molecules (metal-p-complexes).Organometallic compounds are considered to be produced by addition reactions and so they are named on an addition principle. The name therefore is built around the central metal atom name. Organic ligand names are derived according to the rules of organic chemistry with appropriate endings to indicate the different bonding modes. To designate the points of attachment of ligands in more complicated structures, the h, k, and m-notations are used. The final section deals with the abbreviated nomenclature for metallocenes and their derivatives.ContentsIntroduction Systems of Nomenclature2.1 Binary type nomenclature 2.2 Substitutive nomenlcature 2.3 Coordination nomenclature Coordination Nomenclature3.1 General definitions of coordination chemistry 3.2 Oxidation numbers and net charges 3.3 Formulae and names for coordination compounds Nomenclature for Organometallic Compounds of Transition Metals 4.1 Valence-electron-numbers and the 18-valence-electron-rule 4.2 Ligand names 4.2.1 Ligands coordinating by one metal-carbon single bond 4.2.2 Ligands coordinating by several metal-carbon single bonds 4.2.3 Ligands coordinating by metal-carbon multiple bonds 4.2.4 Complexes with unsaturated molecules or groups 4.3 Metallocene nomenclature
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2

Kostova, Irena. "Anticancer Metallocenes and Metal Complexes of Transition Elements from Groups 4 to 7." Molecules 29, no. 4 (2024): 824. http://dx.doi.org/10.3390/molecules29040824.

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With the progression in the field of bioinorganic chemistry, the role of transition metal complexes as the most widely used therapeutics is becoming a more and more attractive research area. The complexes of transition metals possess a great variety of attractive pharmacological properties, including anticancer, anti-inflammatory, antioxidant, anti-infective, etc., activities. Transition metal complexes have proven to be potential alternatives to biologically active organic compounds, especially as antitumor agents. The performance of metal coordination compounds in living systems is anticipated to differ generally from the action of non-metal-containing drugs and may offer unique diagnostic and/or therapeutic opportunities. In this review, the rapid development and application of metallocenes and metal complexes of elements from Groups 4 to 7 in cancer diagnostics and therapy have been summarized. Most of the heavy metals discussed in the current review are newly discovered metals. That is why the use of their metal-based compounds has attracted a lot of attention concerning their organometallic and coordination chemistry. All of this imposes more systematic studies on their biological activity, biocompatibility, and toxicity and presupposes further investigations.
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3

Gallen, Albert, Sílvia Orgué, Guillermo Muller, et al. "Synthesis and coordination chemistry of enantiopure t-BuMeP(O)H." Dalton Transactions 47, no. 15 (2018): 5366–79. http://dx.doi.org/10.1039/c8dt00897c.

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4

Baumgartner, Judith, and Christoph Marschner. "Coordination of non-stabilized germylenes, stannylenes, and plumbylenes to transition metals." Reviews in Inorganic Chemistry 34, no. 2 (2014): 119–52. http://dx.doi.org/10.1515/revic-2013-0014.

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AbstractComplexes of transition metals with heavy analogs of carbenes (tetrylenes) as ligands have been studied now for some 40 years. The current review attempts to provide an overview about complexes with non-stabilized (having no π-donating substituents) germylenes, stannylenes, and plumbylenes. Complexes are known for groups 4–11. For groups 6–10 not only examples of monodentate tetrylene ligands, but also of bridging ones are known. While this review covers almost 200 complexes, the field in general has been approached only very selectively and real attempts for systematic studies are very scarce. Although some isolated reports exist which deal with the reactivity of the tetrylene complexes most of the so far published work concentrates on synthesis and characterization.
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5

Kubas, Gregory J. "Molecular Hydrogen Coordination to Transition Metals." Comments on Inorganic Chemistry 7, no. 1 (1988): 17–40. http://dx.doi.org/10.1080/02603598808072297.

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6

Bobrov, Sergey V., Andrey A. Karasik, and Oleg G. Sinyashin. "Heterocyclic Phosphorus Ligands in Coordination Chemistry of Transition Metals." Phosphorus, Sulfur, and Silicon and the Related Elements 144, no. 1 (1999): 289–92. http://dx.doi.org/10.1080/10426509908546238.

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7

Molter, Anja, Julia Kuchar, and Fabian Mohr. "Acylselenoureas, selenosemicarbazones and selenocarbamate esters: Versatile ligands in coordination chemistry." New Journal of Chemistry 46, no. 10 (2022): 4534–49. http://dx.doi.org/10.1039/d2nj00026a.

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8

M., N. PATEL, and N. JANI B. "Coordination Polymers of some First Row Transition Metals." Journal of Indian Chemical Society Vol. 63, Mar 1986 (1986): 278–80. https://doi.org/10.5281/zenodo.6240907.

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Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar-388 120 <em>Manuscript received 16 August 1984, revised 3 June 1985, accepted 24 December 1985</em> This paper describes the synthesis and characterisation of some new coordination polymers derived from poly Schiff base (PSB) and first row transition metal ions. Ir study showed that the metal ions are coordinated through oxygen of hydroxy group and nitrogen of adjacent azomethme group. The decomposition temperatures of the polymeric chelates were found to be in the&nbsp;order.&nbsp;Ni&gt;Co&gt;Cu&gt;Mn&nbsp;and the thermal activation energy in the order, Ni &gt; Cu &gt; Co &gt; Mn. Probable structures of these compounds have been proposed on the basis of elemental analyses electronic spectra ir spectra, and TG analysis.
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9

Fischer, Roland A., and Jurij Weiß. "Coordination Chemistry of Aluminum, Gallium, and Indium at Transition Metals." Angewandte Chemie International Edition 38, no. 19 (1999): 2830–50. http://dx.doi.org/10.1002/(sici)1521-3773(19991004)38:19<2830::aid-anie2830>3.0.co;2-e.

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10

Holloway, Clive, and Milan Melnik. "Crystallographic and structural characterisation of heterometallic platinum compounds: Part I. Heterobinuclear Pt compounds." Open Chemistry 9, no. 4 (2011): 501–48. http://dx.doi.org/10.2478/s11532-011-0054-2.

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AbstractThis review covers almost 290 heterobinuclear Pt derivatives. When the heterometals (M) are non transition and the binuclear are found both with and without a metal to metal bond. Where M is a transition metal or actinide, only those with a metal-metal bond have been included here. There are thirteen non-transition metals (Sn, Hg, Ge, Sb, Tl, Zn, Pb, Cd, Na, K, Ga, Ca and In). The shortest Pt-M bond distance is 235.2(1) (Pt-Ge). There are eighteen transition metals (Fe, W, Rh, Re, Pd, Ag, Ir, Mo, Mn, Re, Co, Cu, Cr, Au, Ni, Ti, Ta and V). The shortest Pt-M bond distance is 249.5(2) pm (Pt-Cr). There is one example of an actinide, Pt-Th at 298.4(1) pm. The Pt atom has oxidation numbers 0, +2 and +4. The Pt coordination geometries include square planar (most common), trigonal bipyramidal, pseudo octahedral (Pt(IV)) and a few prevalently capped trigonal prismatic seven coordinate species. There are at least two types of isomerism distortion and polymerisation. Factors affecting bond lengths and angles are discussed and some ambiguities in coordination polyhedra are outlined.
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11

Ramler, Jacqueline, and Crispin Lichtenberg. "Bismuth species in the coordination sphere of transition metals: synthesis, bonding, coordination chemistry, and reactivity of molecular complexes." Dalton Transactions 50, no. 21 (2021): 7120–38. http://dx.doi.org/10.1039/d1dt01300a.

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12

Leznoff, Daniel. "Phthalocyanines with Non-Traditional Early Transition-Metals." ECS Meeting Abstracts MA2022-01, no. 14 (2022): 950. http://dx.doi.org/10.1149/ma2022-0114950mtgabs.

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The synthesis, spectroscopic and redox properties of new metallophthalocyanines (PcM) are active areas of research. The rings of PcM complexes can be successively reduced using chemical, electrochemical, or photochemical methods to give rise to species containing ring-reduced Pc(3-), Pc(4-) or Pc(5-) ligands ; in the other direction, both ring-oxidized Pc(-1) and Pc(0)-containing systems can be accessed. These species are usually generated and characterized in situ and have only recently begun to be isolated and structurally characterized. In particular, there are few examples of phthalocyanines with early-transition and f-block metals - despite the rich organometallic-type reactivity of these metals - and thus we targeted new PcM complexes in this underdeveloped area of the periodic table. Given their larger ionic size, the unusual structural feature of the metal centre protruding far out of the Pc cavity is observed. Hence, the exposure of the coordination sphere of these Lewis-acidic (often d0) metals makes these PcM complexes attractive catalysts; this cis-oriented axial ligation also drastically improves the solubility, despite the Pc-ring remaining unsubstituted. In this presentation the isolation and structural characterization of new PcM materials with M = scandium, zirconium, niobium and (time-permitting) molybdenum will be described, along with rare structurally characterized examples of their reduced Pc(4-) and Pc(3-)complexes. Their electronic structure and electrochemical behaviour will be discussed using a combination of spectroscopic and structural techniques. A series of moisture-sensitive, soluble PcZr(IV) and PcNb(V) alkoxides were prepared, characterized, and their catalytic activity towards the ring-opening polymerization of rac-lactide was studied and will be detailed. Reaction of PcScCl with LiO i Pr and NaO t Bu yielded two hydroxide complexes containing the PcScOH unit, obtained from the hydrolysis of the putative PcSc-alkoxide intermediate. The two structurally characterized systems have a tilted “butterfly” shape structure, reminiscent of bent metallocenes. The solubility of these early transition-metal based complexes present new opportunities for the advancement of this underdeveloped area of PcM chemistry. Time permitting, our related work on organometallic PcLnX complexes will also be described. References Zhou, D.B. Leznoff, Chem. Commun., 2018, 54, 1829-1832. W. Zhou, J.R. Thompson, C.C. Leznoff, D.B. Leznoff, Chem. Eur. J., 2017, 23, 2323-2331; R. Platel, W. Zhou, T.T. Tasso, T. Furuyama, N. Kobayashi, D.B. Leznoff, Chem. Commun., 2015, 5986-89; D. McKearney, W. Zhou, V.E. Williams, D.B. Leznoff, Chem. Commun., 2019, 55, 6696-6699; Y. Ganga-Sah, E. Tajbakhsh, R.H. Platel, W. Zhou, D.B. Leznoff, J. Porph. Phthalocyanines, 2019, 23, 1592-1602; W. Zhou, D. McKearney, D.B. Leznoff, Chem. Eur. J., 2020, 26, 1027-31.
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13

Chen, Lizhu, Hunter A. Dulaney, Branford O. Wilkins, et al. "High-spin enforcement in first-row metal complexes of a constrained polyaromatic ligand: synthesis, structure, and properties." New Journal of Chemistry 42, no. 23 (2018): 18667–77. http://dx.doi.org/10.1039/c8nj02072h.

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14

Pringouri, Konstantina, Muhammad U. Anwar, Liz Mansour, et al. "A novel bis-1,2,4-benzothiadiazine pincer ligand: synthesis, characterization and first row transition metal complexes." Dalton Transactions 47, no. 44 (2018): 15725–36. http://dx.doi.org/10.1039/c8dt03346c.

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15

Costabile, Chiara, Stefania Pragliola, and Fabia Grisi. "C2-Symmetric N-Heterocyclic Carbenes in Asymmetric Transition-Metal Catalysis." Symmetry 14, no. 8 (2022): 1615. http://dx.doi.org/10.3390/sym14081615.

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The last decades have witnessed a rapid growth of applications of N-heterocyclic carbenes (NHCs) in different chemistry fields. Due to their unique steric and electronic properties, NHCs have become a powerful tool in coordination chemistry, allowing the preparation of stable metal-ligand frameworks with both main group metals and transition metals. An overview on the use of five membered monodentate C2-symmetric N-heterocyclic carbenes (NHCs) as ligands for transition-metal complexes and their most relevant applications in asymmetric catalysis is offered.
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16

Kawamura, Airi, Alexander S. Filatov, and John S. Anderson. "Sulfonate-Ligated Coordination Polymers Incorporating Paramagnetic Transition Metals." European Journal of Inorganic Chemistry 2019, no. 21 (2019): 2613–17. http://dx.doi.org/10.1002/ejic.201900285.

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17

MEHROTRA, R. C., and A. SINGH. "ChemInform Abstract: Alkoxy Chemistry of Transition Metals. Links with Coordination and Organometallic Chemistry." ChemInform 22, no. 32 (2010): no. http://dx.doi.org/10.1002/chin.199132281.

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18

Khazanov, Thomas M., and Anusree Mukherjee. "Harnessing Oxidizing Potential of Nickel for Sustainable Hydrocarbon Functionalization." Molecules 29, no. 21 (2024): 5188. http://dx.doi.org/10.3390/molecules29215188.

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While the oxidative chemistry of transition metals such as iron and copper is a highly developed area of investigation, the study of similar chemistry with nickel is much younger. However, nickel offers rich coordination chemistry with oxygen and other oxidants and is a promising avenue of research for applications such as sustainable hydrocarbon functionalization. Herein, we summarize the progress made recently in nickel coordination chemistry relevant to hydrocarbon functionalization and offer our perspectives on open questions in the field.
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19

Wallis, Christopher, Peter G. Edwards, Martin Hanton, et al. "Coordination chemistry of 2,6-dixylyl-4-phenylphosphabarrelene with selected transition metals." Dalton Transactions, no. 12 (2009): 2170. http://dx.doi.org/10.1039/b816499a.

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20

David Smith, J. "Comprehensive Coordination Chemistry, Volume 3, Main Group and Early Transition Metals." Journal of Organometallic Chemistry 356, no. 2 (1988): C70—C71. http://dx.doi.org/10.1016/0022-328x(88)83106-1.

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21

Lehtonen, Ari. "Metal Complexes of Redox Non-Innocent Ligand N,N′-Bis(3,5-di-tertbutyl-2-hydroxy-phenyl)-1,2-phenylenediamine." Molecules 29, no. 5 (2024): 1088. http://dx.doi.org/10.3390/molecules29051088.

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Redox non-innocent ligands react with metal precursors to form complexes where the oxidation states of the ligand and thus the metal atom cannot be easily defined. A well-known example of such ligands is bis(o-aminophenol) N,N′-bis(3,5-di-tertbutyl-2-hydroxy-phenyl)-1,2-phenylenediamine, previously developed by the Wieghardt group, which has a potentially tetradentate coordination mode and four distinct protonation states, whereas its electrochemical behavior allows for five distinct oxidation states. This rich redox chemistry, as well as the ability to coordinate to various transition metals, has been utilized in the syntheses of metal complexes with M2L, ML and ML2 stoichiometries, sometimes supported with other ligands. Different oxidation states of the ligand can adopt different coordination modes. For example, in the fully oxidized form, two N donors are sp2-hybridized, which makes the ligand planar, whereas in the fully reduced form, the sp3-hybridized N donors allow the formation of more flexible chelate structures. In general, the metal can be reduced during complexation, but redox processes of the isolated complexes typically occur on the ligand. Combination of this non-innocent ligand with redox-active transition metals may lead to complexes with interesting magnetic, electrochemical, photonic and catalytic properties.
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22

Beldon, Patrick J., Sebastian Henke, Bartomeu Monserrat, Satoshi Tominaka, Norbert Stock, and Anthony K. Cheetham. "Transition metal coordination complexes of chrysazin." CrystEngComm 18, no. 27 (2016): 5121–29. http://dx.doi.org/10.1039/c5ce00792e.

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Eleven novel coordination compounds, composed of chrysazin (1,8-dihydroxyanthraquinone) and different first-row transition metals (Fe, Co, Ni, Cu), were synthesised and the structures determined by single-crystal X-ray diffraction.
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23

Santos, Ariana C. F., Luís P. G. Monteiro, Adriana C. C. Gomes, Fátima Martel, Teresa M. Santos, and Bárbara J. M. Leite Ferreira. "NSAID-Based Coordination Compounds for Biomedical Applications: Recent Advances and Developments." International Journal of Molecular Sciences 23, no. 5 (2022): 2855. http://dx.doi.org/10.3390/ijms23052855.

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After the serendipitous discovery of cisplatin, a platinum-based drug with chemotherapeutic effects, an incredible amount of research in the area of coordination chemistry has been produced. Other transition metal compounds were studied, and several new relevant metallodrugs have been synthetized in the past few years. This review is focused on coordination compounds with first-row transition metals, namely, copper, cobalt, nickel or manganese, or with zinc, which have potential or effective pharmacological properties. It is known that metal complexes, once bound to organic drugs, can enhance the drugs’ biological activities, such as anticancer, antimicrobial or anti-inflammatory ones. NSAIDs are a class of compounds with anti-inflammatory properties used to treat pain or fever. NSAIDs’ properties can be strongly improved when included in complexes using their compositional N and O donor atoms, which facilitate their coordination to metal ions. This review focuses on the research on this topic and on the promising or effective results that complexes of first-row transition metals and NSAIDs can exhibit.
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24

Olabe, José. "Coordination Chemistry of Nitric Oxide and Biological Signaling." Science Reviews - from the end of the world 2, no. 1 (2020): 64–99. http://dx.doi.org/10.52712/sciencereviews.v2i1.33.

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Nitric Oxide (NO) is a key intermediate in the nitrogen redox cycles that operate in soils, water and biological fluids, affording reversible interconversions between nitrates to ammonia and vice-versa. The discovery of its biosynthesis in mammals for signaling purposes generated a research explosion on the ongoing chemistry occurring in specific cellular compartments, centered on NO reactivity toward O2, thiols, amines, and transition metals, as well as derivatives thereof. The present review deals with the coordination chemistry of NO toward selected iron and ruthenium centers. We place specific attention to the three redox states of the nitrosyl group: NO+, NO and NO–/HNO, describing changes in structure and reactivity as coordination takes place. Noteworthy are the results with the most reduced nitroxyl-species that allow establishing the changes in the measurable pKa values for the HNO-bound complexes, also revealing the abrupt decrease in reducing power and trans-releasing abilities of the protonated species over the unprotonated ones, NO–. Comparative results using non-heme and heme proteins and models prove useful for suggesting further improvements in the current research status of complex enzymatic behavior.
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25

Patel, Harshadkumar, and Himani Raval. "Advancements in Coordination Chemistry: A Comprehensive Review on the Synthesis and Characterization of Transition Metal Complexes with 4-Amino-5-pyridyl-4H-1, 2, 4-triazole-3-thiol Ligands." SPU Journal of Science, Technology and Management Research 1, no. 1 (2024): 1–6. https://doi.org/10.63766/spujstmr.24.000001.

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This review paper offers an in-depth analysis of recent advancements in coordination chemistry, specifically focusing on the production and portrayal of transition metal complexes that incorporate5-pyridyl 4-Amino-3-thiol -4H-1,2,4-triazole ligands. The study explores the various methods used to synthesize these complexes, covering a range of transition metals and diverse reaction conditions. It provides a thorough examination of the structural attributes, spectroscopic characteristics, and potential applications of the resulting complexes. The objective of the paper is to present valuable insights into the design, synthesis, and properties of these transition metal complexes, highlighting their importance in coordination chemistry and their promising applications in fields such as catalysis, medicine, and materials science.
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26

Benesperi, Iacopo, Reena Singh, and Marina Freitag. "Copper Coordination Complexes for Energy-Relevant Applications." Energies 13, no. 9 (2020): 2198. http://dx.doi.org/10.3390/en13092198.

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Copper coordination complexes have emerged as a group of transition metal complexes that play important roles in solar energy conversion, utilization and storage, and have the potential to replace the quintessential commonly used transition metals, like Co, Pt, Ir and Ru as light sensitizers, redox mediators, electron donors and catalytic centers. The applications of copper coordination compounds in chemistry and energy related technologies are many and demonstrate their rightful place as sustainable, low toxicity and Earth-abundant alternative materials. In this perspective we show the most recent impact made by copper coordination complexes in dye-sensitized solar cells and other energy relevant applications.
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27

Izakovich, E. N., and M. L. Khidekel'. "Coordination Compounds of Transition Metals in the Chemistry of Aromatic Nitro-compounds." Russian Chemical Reviews 57, no. 5 (1988): 419–32. http://dx.doi.org/10.1070/rc1988v057n05abeh003360.

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28

Fischer, Roland A., and Jurij Weiss. "ChemInform Abstract: Coordination Chemistry of Aluminum, Gallium, and Indium at Transition Metals." ChemInform 31, no. 1 (2010): no. http://dx.doi.org/10.1002/chin.200001261.

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29

Bedin, Michele, Alavi Karim, Marcus Reitti, et al. "Counterion influence on the N–I–N halogen bond." Chemical Science 6, no. 7 (2015): 3746–56. http://dx.doi.org/10.1039/c5sc01053e.

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30

Bohle, D. Scott, Chen-Hsiung Hung, and Bryan D. Smith. "Theoretical, thermal, and coordination chemistry of the amphoteric thiazate (NSO–)1 ion." Canadian Journal of Chemistry 83, no. 12 (2005): 2021–31. http://dx.doi.org/10.1139/v05-191.

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The isomers of thiazate (NSO–) have a rich chemistry that is examined theoretically and experimentally for their thermal and coordination characteristics. The intramolecular isomerization of NSO– to monothionitrite (ONS–) is predicted (B3LYP/6-311+G*) to have a substantial barrier, greater than 418 kJ mol–1. Thus, thiazates are expected to be relatively thermally stable towards isomerization, and DSC indicates that KNSO undergoes a two stage irreversible thermolytic decomposition only beginning at 132 °C with ΔH = –116.3 kJ mol–1. As a ligand, the thiazate can adopt a range of geometries in response to the metal's oxidation state and ligand sphere. For example, in Ru(TTP)(NO)(NSO) the ligand has a markedly bent Ru-N-S geometry, and when contrasted with other structurally characterized thiazate coordination compounds, it is concluded that in addition to σ donation the thiazate binds to metals in an amphoteric manner because of either a forward or reverse OSN → M π donation similar to transition metal nitrosyl, amido, and imido complexes.Key words: thiazate, isomerization, thermolysis, amphoteric ligand, coordination chemistry.
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31

Lukens, James T., Ida M. DiMucci, Takashi Kurogi, Daniel J. Mindiola, and Kyle M. Lancaster. "Scrutinizing metal–ligand covalency and redox non-innocence via nitrogen K-edge X-ray absorption spectroscopy." Chemical Science 10, no. 19 (2019): 5044–55. http://dx.doi.org/10.1039/c8sc03350a.

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A series of nitrogen K-edge XAS data obtained for coordination complexes of diverse transition metals is used to calibrate computational pre-edge peak energies and to afford estimates of metal–ligand covalencies. The approach is extended to probe an inner-sphere aminyl radical ligand.
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32

Bruce, MI, and AH White. "Some Chemistry of Pentakis(methoxycarbonyl)cyclopentadiene, HC5(CO2Me)5, and Related Molecules." Australian Journal of Chemistry 43, no. 6 (1990): 949. http://dx.doi.org/10.1071/ch9900949.

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This article summarizes the results of investigations into the chemistry of HC5(CO2Me)5 and, in particular, of metal complexes containing the C5(CO2Me)5 ligand . As an anion, the ligand is very stable, forming air-stable, water-soluble salts with many cations with coordination to the metal atom in the solid state generally occurring through the ester carbonyl groups. Second- and third-row transition metals form complexes which retain the covalent ligand-metal bond in solution, 'harder' metals coordinating by the ester carbonyl groups, while 'softer' metals are bound to the ring carbons; a variety of behaviour is shown by the Group 11 metals. Even when the ligand is η5-bonded to the metal, ready displacement by other ligands may occur, as found with Ru (η-C5H5){η5-C5(CO2Me)5}, for example. In the rhodium system, formal replacement of CO2Me groups by hydrogen is found, as with the formation of [ Rh {η5-C5H2(CO2Me)3}2][C5(CO2Me)5]. Brief mention is made of other polysubstituted cyclopentadienyls with electron-withdrawing ligands and some related compounds, and their metal derivatives where known.
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33

Bissinger, Philipp, Holger Braunschweig, Thomas Kupfer, and Krzysztof Radacki. "Monoborane NHC Adducts in the Coordination Sphere of Transition Metals." Organometallics 29, no. 17 (2010): 3987–90. http://dx.doi.org/10.1021/om100634b.

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34

Orysyk, Svitlana, Vasyl Pekhnyo, Viktor Orysyk, Yuri Zborovskii, Polina Borovyk, and Vovk Mykhailo. "FUNDAMENTAL ASPECTS OF COORDINATION CHEMISTRY OF TRANSITION METALS WITH FUNCTIONALLY SUBSTITUTED THIOAMIDES (PART 2)." Ukrainian Chemistry Journal 88, no. 3 (2022): 3–27. http://dx.doi.org/10.33609/2708-129x.88.03.2022.3-27.

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In the second part of the analytical review, the influence of polydentate and N-allyl-substituted thiamides on the course of complexation reactions with platinum metal ions and Ag(I) was analyzed. The potential of the obtained coordination compounds for their application in medical and analytical chemistry is also demonstrated. The presented results are obtained on the basis of joint research performed in the Department of "Chemistry of Complex Compounds" of the V.I. Vernadsky Institute of General and Inorganic Chemistry NAS of Ukraine together with the staff of the Department of “Chemistry of Heterocyclic Compounds” of the Institute of Organic Chemistry NAS of Ukraine. The example of the reaction of polydentate thioureas with metal ions shows that the increase in functional groups does not always lead to their simultaneous coordination with metal ions. For example, the migration of double bonds, which is characteristic of H2 L5 thioureas, contributes to the stiffness of heterocycles, which in turn reduces the dentat capacity of these thioureas as ligands, despite the localization of donor atoms in a favorable position for metallocycle formation. In addition, an increase in the number of donor centers in the thioamide molecule can lead to their intramolecular rearrangement under conditions of complexation, and to the occurs of redox reactions. It has been shown that the formation of a π coordination bond involved in the formation of a six-membered chelated metalocycle occurs only when, together with the C=C allyl moiety, other donor atoms of the organic ligand are at an unfavorable geometric location for metalocycle formation. Otherwise, the allyl group does not participate in the coordination to the central metal ion. A characteristic indicator of the formation of the π coordination bond is the splitting of the C3 H2 signal of allylic group protons in 1 H NMR spectra into two doublets with the same spin-spin interaction constant, as well as high-frequency shift of absorption bands of valence vibrations νas(CH)allyl, νs (CH) allyl in the IR spectra of π,n-chelate complexes.It was found that regardless of the stoichiometry of the starting components, the reaction of N-allyl-substituted thioamides HL10-12 with platinum metal ions leads to the formation of complexes only in the ratio M:L=1:1, due to the strong "trans-effect" of the allylic fragment. It was found that a number of n,π-chelate complexes of palladium(II) and platinum(II) with general formula [Pd/Pt(HL10-12)Hal2 ] (Hal = Cl-, Br- , I- ), which are structurally analogous to the known antitumor agent cisplatin, show effective antitumor action: antiproliferative, cytotoxic, anti-metastatic, proapoptotic. However, unlike cisplatin, they have proven to be much more effective: they are stable over a wide pH range; have the ability to overcome the resistance of pathogenic cells to the action of antitumor agents and show a wider range of action. The method of molecular docking was used to study the possible mechanism of interaction of the studied complexes, ie the most probable orientation and location of the complex molecule relative to the protein site of DNA binding was determined by mathematical modeling. Thioamide H2 L1 has been found to be an effective universal analytical reagent for the determination, extraction and separation of Ru(III), Rh(III) and Pd(II) from model solutions of their chlorides. The difference in the formation of anionic complexes of these metals and their ionic associations with the cationic dye atrafloxin is the basis of the developedmethod of extraction-photometric determination and stepwise separation of Ru(III), Rh(II) and Pd(II), which is important for applied aspects chemistry.
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35

Karasik, A. A., O. G. Sinyashin, J. Heinicke, and E. Hey-Hawkins. "Phosphino Amino Acids: Novel Water-Soluble Ligands for Coordination Chemistry of Transition Metals." Phosphorus, Sulfur, and Silicon and the Related Elements 177, no. 6-7 (2002): 1469–71. http://dx.doi.org/10.1080/10426500212226.

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36

Matsuo, Tsukasa, and Hiroyuki Kawaguchi. "Tridentate Aryloxide Ligands: New Supporting Ligands in Coordination Chemistry of Early Transition Metals." Chemistry Letters 33, no. 6 (2004): 640–45. http://dx.doi.org/10.1246/cl.2004.640.

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37

Castañeda, Raúl, Bulat Gabidullin, and Jaclyn L. Brusso. "Exploring the coordination chemistry of imidoyl amidine ligands with first-row transition metals." Acta Crystallographica Section A Foundations and Advances 74, a1 (2018): a153. http://dx.doi.org/10.1107/s010876731809846x.

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38

Mathey, F., Angela Marinetti, Siegfried Bauer, and Pascal Le Floch. "Chemistry of phosphorus-carbon double bonds in the coordination sphere of transition metals." Pure and Applied Chemistry 63, no. 6 (1991): 855–58. http://dx.doi.org/10.1351/pac199163060855.

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39

Peruzzini, Maurizio, Isaac De Los Rios, and Antonio Romerosa. "ChemInform Abstract: Coordination Chemistry of Transition Metals with Hydrogen Chalcogenide and Hydrochalcogenido Ligands." ChemInform 33, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.200231251.

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40

Kozáček, Pavel, Libor Dostál, Aleš Růžička, Ivana Císařová, Zdeněk Černošek та Milan Erben. "Synthesis and coordination properties of new σ2,λ3-P/N switchable chelators based on [1,2,3]-diazaphosphole". New Journal of Chemistry 43, № 34 (2019): 13388–97. http://dx.doi.org/10.1039/c9nj03146d.

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41

Calvo, Jenifer S., Victor M. Lopez, and Gabriele Meloni. "Non-coordinative metal selectivity bias in human metallothioneins metal–thiolate clusters." Metallomics 10, no. 12 (2018): 1777–91. http://dx.doi.org/10.1039/c8mt00264a.

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Mammalian metallothioneins MT-2 and MT-3 contain two metal–thiolate clusters through cysteine coordination of d<sup>10</sup> metals, Cu(i) and Zn(ii), and isoform-specific non-coordinating residues control their respective zinc– and copper–thionein character.
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42

Kubas, Gregory J. "Activation of dihydrogen and coordination of molecular H2 on transition metals." Journal of Organometallic Chemistry 751 (February 2014): 33–49. http://dx.doi.org/10.1016/j.jorganchem.2013.07.041.

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43

Karasev, M. O., V. A. Fomina, I. N. Karaseva, and D. V. Pushkin. "Crystallochemical Role of Benzoate and Phenylacetate Ions in Structures of Coordination 3d-Metal Compounds." Координационная химия 49, no. 4 (2023): 246–56. http://dx.doi.org/10.31857/s0132344x23700226.

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A crystal chemical analysis of the 3d-metal benzoate- and phenylacetate-containing compounds is carried out in terms of the stereoatomic crystal structure model using characteristics of the Voronoi–Dirichlet polyhedra. Coordination types of benzoate and phenylacetate anions toward the transition metals from Ti to Zn are considered. The influence of the coordination type on the characteristics of M–O bonds in the crystal structures is revealed. The electron-donating ability of benzoate and phenylacetate anions toward 3d metals is quantitatively estimated using the 18-electron rule.
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44

Vitiu, A., Ed Coropceanu, and P. Bourosh. "Coordination Compounds of Transition Metals with Rhodanine-3-Acetic Acid." Russian Journal of Coordination Chemistry 47, no. 11 (2021): 717–29. http://dx.doi.org/10.1134/s1070328421110063.

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45

Nimax, Patrick R., Nils Rotthowe, Florian Zoller, et al. "Coordination polymers of 5-substituted 1,2,3,4-tetracyanocyclopentadienides: structural and electrochemical properties of complex compounds of 5-amino- and 5-nitro-tetracyanocyclopentadienide." Dalton Transactions 50, no. 47 (2021): 17643–52. http://dx.doi.org/10.1039/d1dt02866a.

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Two electron-deficient polycyanated cyclopentadienides, utilized as ligands in coordination polymers with transition- and alkaline metals, show a reductive behavior to yield their neutral radicals when subjected to UV-light.
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46

Moulis, Jean-Marc. "Cellular Dynamics of Transition Metal Exchange on Proteins: A Challenge but a Bonanza for Coordination Chemistry." Biomolecules 10, no. 11 (2020): 1584. http://dx.doi.org/10.3390/biom10111584.

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Transition metals interact with a large proportion of the proteome in all forms of life, and they play mandatory and irreplaceable roles. The dynamics of ligand binding to ions of transition metals falls within the realm of Coordination Chemistry, and it provides the basic principles controlling traffic, regulation, and use of metals in cells. Yet, the cellular environment stands out against the conditions prevailing in the test tube when studying metal ions and their interactions with various ligands. Indeed, the complex and often changing cellular environment stimulates fast metal–ligand exchange that mostly escapes presently available probing methods. Reducing the complexity of the problem with purified proteins or in model organisms, although useful, is not free from pitfalls and misleading results. These problems arise mainly from the absence of the biosynthetic machinery and accessory proteins or chaperones dealing with metal / metal groups in cells. Even cells struggle with metal selectivity, as they do not have a metal-directed quality control system for metalloproteins, and serendipitous metal binding is probably not exceptional. The issue of metal exchange in biology is reviewed with particular reference to iron and illustrating examples in patho-physiology, regulation, nutrition, and toxicity.
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47

Tkáč, Alexander. "Alternating reactivity of free radicals coordinated to chelated transition metals and to hemoproteins." Collection of Czechoslovak Chemical Communications 53, no. 10 (1988): 2429–46. http://dx.doi.org/10.1135/cccc19882429.

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The mean lifetime of free radicals increases by coordination to transition metals of chelates including hemoproteins (hemoglobin, cytochrome c, catalase), when the radical generation proceeds in non-polar media in temperature range of physiological ones (290-310 K). In polar media (water, methyl- or ethylalcohol, pyridine), or in the presence of effective ligating agents (e.g. bases of nucleic acids), or at slightly elevated temperatures the intermediately stabilized oxygen centred radicals are liberated from the complex and the original high reactivity of the free radical is renewed. It is assumed that in this way sterically unhindered free radicals derived from chemical carcinogens with alternating reactivity could be transported through the microheterogeneous cell matrix.
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48

Ovsyannikov, A. S., S. Ferlay, S. E. Solovieva, et al. "Molecular tectonics: high dimensional coordination networks based on methylenecarboxylate-appended tetramercaptothiacalix[4]arene in the 1,3-alternate conformation." CrystEngComm 20, no. 8 (2018): 1130–40. http://dx.doi.org/10.1039/c7ce02105d.

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49

Gang, Zhao, Cao Yuan, and Wang Zhongming. "Coordination Compounds of Dimethyl 1, 1′-Diacetylferrocenebis(hydrazonatocarbodithioate) with Transition Metals." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 26, no. 4 (1996): 617–25. http://dx.doi.org/10.1080/00945719608004766.

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50

Yunyin, Niu, Zhang Hongyun, Jia Handong, Wu Qingan, Li Feng, and Zhang Hongquan. "Studies on Formylferrocenyl Salicyloylhydrazone and Its Coordination Compounds with Transition Metals." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 27, no. 10 (1997): 1491–500. http://dx.doi.org/10.1080/00945719708003153.

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