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Liu DC, Luo ZM, Aramburu-Trošelj BM, Ma F, Wang JW. Cobalt-based tripodal complexes as molecular catalysts for photocatalytic CO 2 reduction. Chem Commun (Camb) 2023. [PMID: 37962468 DOI: 10.1039/d3cc04759h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Construction of artificial photosynthetic systems including CO2 reduction is a promising pathway to produce carbon-neutral fuels and mitigate the greenhouse effect concurrently. However, the exploitation of earth-abundant catalysts for photocatalytic CO2 reduction remains a fundamental challenge, which can be assisted by a systematic summary focusing on a specific catalyst family. Cobalt-based complexes featuring tripodal ligands should merit more insightful discussion and summarization, as they are one of the most examined catalyst families for CO2 photoreduction. In this feature article, the key developments of cobalt-based tripodal complexes as molecular catalysts for light-driven CO2 reduction are discussed to offer an upcoming perspective, analyzing the present progress in electronic/steric tuning through ligand modification and dinuclear design to achieve a synergistic effect, as well as the bottlenecks for further development.
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Affiliation(s)
- Dong-Cheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Yucai Road No. 15, Guilin 541004, China.
| | - Zhi-Mei Luo
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Bruno M Aramburu-Trošelj
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Fan Ma
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Jia-Wei Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
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2
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Young BS, Lee JL, Gembicky M, Bailey J, Smith GLN. Synthesis and crystal structure of bis-(2-phthal-imido-eth-yl)ammonium chloride dihydrate. Acta Crystallogr E Crystallogr Commun 2023; 79:575-577. [PMID: 37288457 PMCID: PMC10242743 DOI: 10.1107/s2056989023004565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/23/2023] [Indexed: 06/09/2023]
Abstract
The title compound {systematic name: bis-[2-(1,3-dioxoisoindol-2-yl)eth-yl]aza-nium chloride dihydrate}, C20H18N3O4 +·Cl-·2H2O, is a phthalimide-protected polyamine that was synthesized by a previous method. It was characterized by ESI-MS, 1H NMR, and FT-IR. Crystals were grown from a solution of H2O and 0.1 M HCl. The central nitro-gen atom is protonated and forms hydrogen bonds with the chloride ion and a water mol-ecule. The two phthalimide units make a dihedral angle of 22.07 (3)°. The crystal packing features a hydrogen-bond network, two-coordinated chloride, and off-set π-π stacking.
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Affiliation(s)
- Barry S. Young
- Department of Chemistry, San Diego Miramar College, San Diego, CA 92126, USA
| | - Jamie L. Lee
- Department of Chemistry, San Diego Miramar College, San Diego, CA 92126, USA
| | - Milan Gembicky
- Department of Chemistry, University of California-San Diego, La Jolla, CA 92093, USA
| | - Jake Bailey
- Department of Chemistry, University of California-San Diego, La Jolla, CA 92093, USA
| | - Gary L. N. Smith
- Department of Chemistry, San Diego Miramar College, San Diego, CA 92126, USA
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3
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An investigation into the coordination chemistry of tripodal “click” triazole ligands with Mn, Ni, Co and Zn ions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Adach A, Tyszka-Czochara M, Bukowska-Strakova K, Rejnhardt P, Daszkiewicz M. In situ synthesis, crystal structure, selective anticancer and proapoptotic activity of complexes isolated from the system containing zerovalent nickel and pyrazole derivatives. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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The development of New Delhi metallo-β-lactamase-1 inhibitors since 2018. Microbiol Res 2022; 261:127079. [DOI: 10.1016/j.micres.2022.127079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/22/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022]
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6
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Fluorescent Chemosensors Based on Polyamine Ligands: A Review. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors10010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polyamine ligands are water-soluble receptors that are able to coordinate, depending on their protonation degree, either metal ions, anionic, or neutral species. Furthermore, the presence of fluorescent signaling units allows an immediate visual response/signal. For these reasons, they can find applications in a wide variety of fields, mainly those where aqueous media is necessary, such as biological studies, wastewater analysis, soil contamination, etc. This review provides an overview of the recent developments in the research of chemosensors based on polyamine ligands functionalized with fluorescent signaling units. The discussion focuses on the design, synthesis, and physicochemical properties of this type of fluorescent chemosensors in order to analyze the applications associated to the sensing of metal ions, anions, and neutral molecules of environmental and/or biological interest. To facilitate a quick access and overview of all the chemosensors covered in this review, a summary table of the chemosensor structures and analytes, with all the corresponding references, is also presented.
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Rahman F, Wushur I, Malla N, Åstrand OAH, Rongved P, Winberg JO, Sylte I. Zinc-Chelating Compounds as Inhibitors of Human and Bacterial Zinc Metalloproteases. Molecules 2021; 27:molecules27010056. [PMID: 35011288 PMCID: PMC8746695 DOI: 10.3390/molecules27010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022] Open
Abstract
Inhibition of bacterial virulence is believed to be a new treatment option for bacterial infections. In the present study, we tested dipicolylamine (DPA), tripicolylamine (TPA), tris pyridine ethylene diamine (TPED), pyridine and thiophene derivatives as putative inhibitors of the bacterial virulence factors thermolysin (TLN), pseudolysin (PLN) and aureolysin (ALN) and the human zinc metalloproteases, matrix metalloprotease-9 (MMP-9) and matrix metalloprotease-14 (MMP-14). These compounds have nitrogen or sulfur as putative donor atoms for zinc chelation. In general, the compounds showed stronger inhibition of MMP-14 and PLN than of the other enzymes, with Ki values in the lower μM range. Except for DPA, none of the compounds showed significantly stronger inhibition of the virulence factors than of the human zinc metalloproteases. TPA and Zn230 were the only compounds that inhibited all five zinc metalloproteinases with a Ki value in the lower μM range. The thiophene compounds gave weak or no inhibition. Docking indicated that some of the compounds coordinated zinc by one oxygen atom from a hydroxyl or carbonyl group, or by oxygen atoms both from a hydroxyl group and a carbonyl group, and not by pyridine nitrogen as in DPA and TPA.
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Affiliation(s)
- Fatema Rahman
- Molecular Pharmacology and Toxicology, Department of Medical Biology, Faculty of Health Sciences, UiT—The Arctic University of Norway, NO-9037 Tromsø, Norway; (F.R.); (I.W.); (N.M.); (J.-O.W.)
| | - Imin Wushur
- Molecular Pharmacology and Toxicology, Department of Medical Biology, Faculty of Health Sciences, UiT—The Arctic University of Norway, NO-9037 Tromsø, Norway; (F.R.); (I.W.); (N.M.); (J.-O.W.)
| | - Nabin Malla
- Molecular Pharmacology and Toxicology, Department of Medical Biology, Faculty of Health Sciences, UiT—The Arctic University of Norway, NO-9037 Tromsø, Norway; (F.R.); (I.W.); (N.M.); (J.-O.W.)
| | - Ove Alexander Høgmoen Åstrand
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, NO-0316 Oslo, Norway; (O.A.H.Å.); (P.R.)
| | - Pål Rongved
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, NO-0316 Oslo, Norway; (O.A.H.Å.); (P.R.)
| | - Jan-Olof Winberg
- Molecular Pharmacology and Toxicology, Department of Medical Biology, Faculty of Health Sciences, UiT—The Arctic University of Norway, NO-9037 Tromsø, Norway; (F.R.); (I.W.); (N.M.); (J.-O.W.)
| | - Ingebrigt Sylte
- Molecular Pharmacology and Toxicology, Department of Medical Biology, Faculty of Health Sciences, UiT—The Arctic University of Norway, NO-9037 Tromsø, Norway; (F.R.); (I.W.); (N.M.); (J.-O.W.)
- Correspondence: ; Tel.: +47-7764-4705
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Kumbhakar S, Giri B, Muley A, Karumban KS, Maji S. Design, synthesis, structural, spectral, and redox properties and phenoxazinone synthase activity of tripodal pentacoordinate Mn(II) complexes with impressive turnover numbers. Dalton Trans 2021; 50:16601-16612. [PMID: 34747419 DOI: 10.1039/d1dt01925b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catechol oxidase (CO) and phenoxazinone synthase (PHS) are two enzymes of immense significance due to their capability to oxidize catechols and o-aminophenols to o-quinones and phenoxazinones, respectively. In this connection two mononuclear manganese complexes with the molecular framework [MnII(Ln)Cl]Cl {L1: tris((1H-benzo[d]imidazol-2-yl)methyl)amine; n = 1 and L2: tris(N-methylbenzimidazol-2-ylmethyl)amine; n = 2} have been designed to be potential catalysts for OAPH (o-aminophenol) oxidation. Both the ligands and their corresponding metal complexes have been successfully synthesized and thoroughly characterized by different spectroscopic and analytical techniques such as FT-IR, 1H NMR, UV-vis spectroscopy, EPR spectroscopy and ESI mass spectroscopy. The molecular structures of [MnII(L1)Cl]Cl (1) and [MnII(L2)Cl]Cl (2) have been revealed by a single-crystal X-ray diffraction study. The spectral properties and redox behaviour of both the complexes were examined. Under ambient conditions, 1 and 2 show excellent phenoxazinone synthase activity as both are very susceptible to oxidize o-aminophenol to phenoxazinone. The kinetic parameters for both complexes have been determined by analyzing the experimental spectroscopic data. The turnover numbers (kcat value) of these two complexes are extremely high, 440 h-1 and 234 h-1 for 1 and 2, respectively. The present report offers a thorough overview of information involving the role of the metal ions and their extent of phenoxazinone synthase mimicking activity. The oxidation of o-aminophenol to 2-amino-3H-phenoxazine-3-one (APX) by catalytic oxidation of oxygen (O2) by the reaction with transition metal complexes has been an important study for the last few decades. The current study evidently showed better performance of our synthesized Mn(II) complexes than all the predecessors. The plausible mechanism has been reiterated based on the experimental data via ESI-MS spectra and considering the concepts from the previously reported mechanisms involved in the formation of hydrogen peroxide (H2O2) as an intermediate substrate is fairly indicating the involvement of molecular oxygen in the catalytic cycle.
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Affiliation(s)
- Sadananda Kumbhakar
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Bishnubasu Giri
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Arabinda Muley
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Kalai Selvan Karumban
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Somnath Maji
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
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Rezaeivala M, Zebarjadian MH, Sayin K. Synthesis and competitive 7Li NMR studies of two morpholine-based ligands. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Shimada S, Yin SF, Bao M. A new C-anionic tripodal ligand 2-{bis(benzothiazolyl)(methoxy)methyl}phenyl and its bismuth complexes. Dalton Trans 2021; 50:7949-7954. [PMID: 34096567 DOI: 10.1039/d1dt01071a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new tripodal C-anionic ligand, 2-{bis(benzothiazolyl)(methoxy)methyl}phenyl (L), was stably generated by the reaction of the ligand precursor (L'), the corresponding bromide (2-BrC6H4)(MeO)C(C7H4NS)2 (C7H4NS = 2-benzothiazolyl), with nBuLi at -104 °C in the presence of TMEDA (N,N,N',N'-tetramethylethylenediamine). The ligand lithium salt reacted with BiCl3 to give a 2 : 1 complex L2BiCl. A 1 : 1 complex LBiCl2 was obtained in good yield by the redistribution reaction between L2BiCl and BiCl3. X-ray diffraction analysis revealed that the ligand L coordinated in an expected κ3-C,N,N' coordination mode in LBiCl2, while it coordinated in κ3-C,N,O and κ2-C,O coordination modes in L2BiCl. The ligand precursor reacted with BiX3 (X = Cl, Br) to give 1 : 1 complexes L'BiX3 and was found to act as a neutral tripodal C(π),N,N-ligand.
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Affiliation(s)
- Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Ming Bao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, P. R. China
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11
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Insights of Tris(2-pyridylmethyl)amine as anti-tumor agent for osteosarcoma: experimental and in silico studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Holmberg R, Franz V, Moser KM, Solano R, Moore C, Rheingold AL, Smith GLN. Crystal structure of 2,2'-{[(2-nitro-benz-yl)aza-nedi-yl]bis-(propane-3,1-di-yl)}bis-[1 H-iso-indole-1,3(2 H)-dione]. Acta Crystallogr E Crystallogr Commun 2021; 77:83-85. [PMID: 33614130 PMCID: PMC7869556 DOI: 10.1107/s2056989020016771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/28/2020] [Indexed: 12/02/2022]
Abstract
The structure of the title compound, C29H26N4O6, exhibits a folded conformation with the three arms all on the same side of the tertiary N atom. The two phthalimide units make a dihedral angle of 12.18 (12)° and the dihedral angles between the benzyl plane and the phthalimide units are 68.08 (7) and 67.71 (7)°. The crystal packing features π-π inter-actions.
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Affiliation(s)
- Ryne Holmberg
- Department of Chemistry, Point Loma Nazarene University, San Diego, CA 92106, USA
| | - Vanessa Franz
- Department of Chemistry, Point Loma Nazarene University, San Diego, CA 92106, USA
| | - Kristen M. Moser
- Department of Chemistry, Point Loma Nazarene University, San Diego, CA 92106, USA
| | - Ricardo Solano
- Department of Chemistry, Point Loma Nazarene University, San Diego, CA 92106, USA
| | - Curtis Moore
- Crystallography Facility, The Ohio State University, Columbus, OH 43210, USA
| | - Arnold L. Rheingold
- Department of Chemistry, University of California-San Diego, La Jolla, CA 92093, USA
| | - Gary L. N. Smith
- Department of Chemistry, San Diego Miramar College, San Diego, CA 92126, USA
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Blackman AG, Schenk EB, Jelley RE, Krenske EH, Gahan LR. Five-coordinate transition metal complexes and the value of τ5: observations and caveats. Dalton Trans 2020; 49:14798-14806. [PMID: 33044477 DOI: 10.1039/d0dt02985h] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The τ5 parameter, first proposed by Addison and coworkers, is the principal measure of the geometry of five-coordinate transition metal complexes, with τ5 = 0 said to describe a perfect square pyramidal geometry and τ5 = 1 a perfect trigonal pyramidal geometry. Therefore, the geometries of all five-coordinate complexes are assumed to lie on a continuum between these two extremes. Herein we show that there are a significant number of examples of transition metal complexes having τ5 > 1, leading to an equatorially distorted trigonal bipyramidal geometry with the transition metal ion lying out of the plane of the equatorial donor atoms. We also show that complexes having τ5 = 0 and displaying perfect square pyramidal geometry are very much the exception, and that the majority of complexes for which τ5 = 0 have the metal ion sitting above the mean plane of the donor atoms in the square plane, in a basally distorted square pyramidal geometry. Density functional theory computations on a number of these complexes show that the structural distortions are inherent features of the complexes, and not merely the result of intermolecular interactions.
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Affiliation(s)
- Allan G Blackman
- Department of Chemistry, Centre for Biomedical and Chemical Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.
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Diana R, Panunzi B. The Role of Zinc(II) Ion in Fluorescence Tuning of Tridentate Pincers: A Review. Molecules 2020; 25:molecules25214984. [PMID: 33126503 PMCID: PMC7662684 DOI: 10.3390/molecules25214984] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/20/2020] [Accepted: 10/25/2020] [Indexed: 12/17/2022] Open
Abstract
Tridentate ligands are simple low-cost pincers, easy to synthetize, and able to guarantee stability to the derived complexes. On the other hand, due to its unique mix of structural and optical properties, zinc(II) ion is an excellent candidate to modulate the emission pattern as desired. The present work is an overview of selected articles about zinc(II) complexes showing a tuned fluorescence response with respect to their tridentate ligands. A classification of the tridentate pincers was carried out according to the binding donor atom groups, specifically nitrogen, oxygen, and sulfur donor atoms, and depending on the structure obtained upon coordination. Fluorescence properties of the ligands and the related complexes were compared and discussed both in solution and in the solid state, keeping an eye on possible applications.
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Sattler W, Shlian DG, Sambade D, Parkin G. Synthesis and structural characterization of bis(2-pyridylthio)(p-tolylthio)methyl zinc complexes and the catalytic hydrosilylation of CO2. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114542] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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ZN148 Is a Modular Synthetic Metallo-β-Lactamase Inhibitor That Reverses Carbapenem Resistance in Gram-Negative Pathogens In Vivo. Antimicrob Agents Chemother 2020; 64:AAC.02415-19. [PMID: 32179522 PMCID: PMC7269481 DOI: 10.1128/aac.02415-19] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/05/2020] [Indexed: 12/24/2022] Open
Abstract
Carbapenem-resistant Gram-negative pathogens are a critical public health threat and there is an urgent need for new treatments. Carbapenemases (β-lactamases able to inactivate carbapenems) have been identified in both serine β-lactamase (SBL) and metallo-β-lactamase (MBL) families. The recent introduction of SBL carbapenemase inhibitors has provided alternative therapeutic options. Unfortunately, there are no approved inhibitors of MBL-mediated carbapenem-resistance and treatment options for infections caused by MBL-producing Gram-negatives are limited. Carbapenem-resistant Gram-negative pathogens are a critical public health threat and there is an urgent need for new treatments. Carbapenemases (β-lactamases able to inactivate carbapenems) have been identified in both serine β-lactamase (SBL) and metallo-β-lactamase (MBL) families. The recent introduction of SBL carbapenemase inhibitors has provided alternative therapeutic options. Unfortunately, there are no approved inhibitors of MBL-mediated carbapenem-resistance and treatment options for infections caused by MBL-producing Gram-negatives are limited. Here, we present ZN148, a zinc-chelating MBL-inhibitor capable of restoring the bactericidal effect of meropenem and in vitro clinical susceptibility to carbapenems in >98% of a large international collection of MBL-producing clinical Enterobacterales strains (n = 234). Moreover, ZN148 was able to potentiate the effect of meropenem against NDM-1-producing Klebsiella pneumoniae in a murine neutropenic peritonitis model. ZN148 showed no inhibition of the human zinc-containing enzyme glyoxylase II at 500 μM, and no acute toxicity was observed in an in vivo mouse model with cumulative dosages up to 128 mg/kg. Biochemical analysis showed a time-dependent inhibition of MBLs by ZN148 and removal of zinc ions from the active site. Addition of exogenous zinc after ZN148 exposure only restored MBL activity by ∼30%, suggesting an irreversible mechanism of inhibition. Mass-spectrometry and molecular modeling indicated potential oxidation of the active site Cys221 residue. Overall, these results demonstrate the therapeutic potential of a ZN148-carbapenem combination against MBL-producing Gram-negative pathogens and that ZN148 is a highly promising MBL inhibitor that is capable of operating in a functional space not presently filled by any clinically approved compound.
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Chakraborty B, Ghosh I, Jana RD, Paine TK. Oxidative C-N bond cleavage of (2-pyridylmethyl)amine-based tetradentate supporting ligands in ternary cobalt(ii)-carboxylate complexes. Dalton Trans 2020; 49:3463-3472. [PMID: 32103212 DOI: 10.1039/c9dt04438h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three mononuclear cobalt(ii)-carboxylate complexes, [(TPA)CoII(benzilate)]+ (1), [(TPA)CoII(benzoate)]+ (2) and [(iso-BPMEN)CoII(benzoate)]+ (3), of N4 ligands (TPA = tris(2-pyridylmethyl)amine and iso-BPMEN = N1,N1-dimethyl-N2,N2-bis((pyridin-2-yl)methyl)ethane-1,2-diamine) were isolated to investigate their reactivity toward dioxygen. Monodentate (η1) binding of the carboxylates to the metal centre favours the five-coordinate cobalt(ii) complexes (1-3) for dioxygen activation. Complex 1 slowly reacts with dioxygen to enable the oxidative decarboxylation of the coordinated α-hydroxy acid (benzilate). Prolonged exposure of the reaction solution of 2 to dioxygen results in the formation of [(DPA)CoIII(picolinate)(benzoate)]+ (4) and [CoIII(BPCA)2]+ (5) (DPA = di(2-picolyl)amine and HBPCA = bis(2-pyridylcarbonyl)amide), whereas only [(DPEA)CoIII(picolinate)(benzoate)]+ (6) (DPEA = N1,N1-dimethyl-N2-(pyridine-2-ylmethyl)-ethane-1,2-diamine) is isolated from the final oxidised solution of 3. The modified ligand DPA (or DPEA) is formed via the oxidative C-N bond cleavage of the supporting ligands. Further oxidation of the -CH2- moiety to -C([double bond, length as m-dash]O)- takes place in the transformation of DPA to HBPCA on the cobalt(ii) centre. Labelling experiments with 18O2 confirm the incorporation of oxygen atoms from molecular oxygen into the oxidised products. Mixed labelling studies with 16O2 and H2O18 strongly support the involvement of water in the C-N bond cleavage pathway. A comparison of the dioxygen reactivity of the cobalt complexes (1-3) with those of several other five-coordinate mononuclear complexes [(TPA)CoII(X)]+/2+ (X = Cl, CH3CN, acetate, benzoylformate, salicylate and phenylpyruvate) establishes the role of the carboxylate co-ligands in the activation of dioxygen and subsequent oxidative cleavage of the supporting ligands by a metal-oxygen oxidant.
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Affiliation(s)
- Biswarup Chakraborty
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
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18
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González Nieves K, Piñero Cruz DM. Crystal structure of a nickel compound comprising two nickel(II) complexes with different ligand environments: [Ni(tren)(H 2O) 2][Ni(H 2O) 6](SO 4) 2. Acta Crystallogr E Crystallogr Commun 2020; 76:314-317. [PMID: 32148867 PMCID: PMC7057385 DOI: 10.1107/s2056989020001358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 01/30/2020] [Indexed: 11/11/2022]
Abstract
The title compound, di-aqua-[tris-(2-amino-eth-yl)amine]-nickel(II) hexa-aqua-nickel(II) bis-(sulfate), [Ni(C6H18N4)(H2O)2][Ni(H2O)6](SO4)2 or [Ni(tren)(H2O)2][Ni(H2O)6](SO4)2, consists of two octa-hedral nickel complexes within the same unit cell. These metal complexes are formed from the reaction of [Ni(H2O)6](SO4) and the ligand tris-(2-amino-eth-yl)amine (tren). The crystals of the title compound are purple, different from those of the starting complex [Ni(H2O)6](SO4), which are turquoise. The reaction was performed both in a 1:1 and 1:2 metal-ligand molar ratio, always yielding the co-precipitation of the two types of crystals. The asymmetric unit of the title compound, which crystallizes in the space group Pnma, consists of two half NiII complexes and a sulfate counter-anion. The mononuclear cationic complex [Ni(tren)(H2O)2]2+ comprises an Ni ion, the tren ligand and two water mol-ecules, while the mononuclear complex [Ni(H2O)6]2+ consists of another Ni ion surrounded by six coordinated water mol-ecules. The [Ni(tren)(H2O)2] and [Ni(H2O)6] subunits are connected to the SO4 2- counter-anions through hydrogen bonding, thus consolidating the crystal structure.
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Affiliation(s)
- Karilys González Nieves
- Department of Natural Sciences, University of Puerto Rico, Carolina Campus, 2100 Avenida Sur, Carolina, PR 00987, Puerto Rico
| | - Dalice M. Piñero Cruz
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, Ponce de Leon Avenue, San Juan, PR 00931, Puerto Rico
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19
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Qi ZP, Xu W, Diao XY, Li LQ, Chen L. Synthesis and Structures of Four Metal-Organic Coordination Compounds with Isomeric Tripodal Ligands. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhao-Peng Qi
- School of Chemistry and Chemical Engineering; Key Laboratory of Inorganic Functional Materials; Huangshan University; Huangshan P. R. China
| | - Wen Xu
- School of Chemistry and Chemical Engineering; Key Laboratory of Inorganic Functional Materials; Huangshan University; Huangshan P. R. China
| | - Xiang-Yang Diao
- School of Chemistry and Chemical Engineering; Key Laboratory of Inorganic Functional Materials; Huangshan University; Huangshan P. R. China
| | - Liang-Qing Li
- School of Chemistry and Chemical Engineering; Key Laboratory of Inorganic Functional Materials; Huangshan University; Huangshan P. R. China
| | - Lei Chen
- School of Chemistry and Chemical Engineering; Key Laboratory of Inorganic Functional Materials; Huangshan University; Huangshan P. R. China
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20
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Mohabeer PK, Carr B, Hanif M, Hartinger C, Groutso T, Jelley RE, Söhnel T, Blackman AG. Synthesis, structure and fluxionality of Co(III) complexes containing chelated sulfate. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Scaramuzzo FA, Badetti E, Licini G, Zonta C. Extending substrate sensing capabilities of zinc tris(2‐pyridylmethyl)amine‐based stereodynamic probe. Chirality 2019; 31:375-383. [DOI: 10.1002/chir.23064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 01/16/2023]
Affiliation(s)
| | - Elena Badetti
- Dipartimento di Scienze ChimicheUniversità degli Studi di Padova Padova Italy
| | - Giulia Licini
- Dipartimento di Scienze ChimicheUniversità degli Studi di Padova Padova Italy
| | - Cristiano Zonta
- Dipartimento di Scienze ChimicheUniversità degli Studi di Padova Padova Italy
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22
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Qi ZP, Xu H, Diao XY, Xu W, Huang LF, Chen L. Effect of nitrogen-position on the structures and magnetic properties of diazole-containing tripodal coordination compounds. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.11.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Mehlich F, Roberts AE, Kerscher M, Comba P, Lawrance GA, Würtele C, Becker J, Schindler S. Synthesis and characterization of copper complexes with a series of tripodal amine ligands. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Baulina TV, Kudryavtsev IY, Smolyakov AF, Pasechnik MP, Brel VK. Synthesis and molecular structure of functionalized tris[2-(4′-substituted butoxyphenyl)]phosphine oxides as precursors of tripodal ligands. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tat'yana V. Baulina
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | - Igor Yu. Kudryavtsev
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | - Alexander F. Smolyakov
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
- Faculty of Science; RUDN University; Moscow Russia
| | - Margarita P. Pasechnik
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | - Valery K. Brel
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
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25
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Fenton OS, Andresen JL, Paolini M, Langer R. β‐Aminoacrylate Synthetic Hydrogels: Easily Accessible and Operationally Simple Biomaterials Networks. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808452] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Owen S. Fenton
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Jason L. Andresen
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Marion Paolini
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Robert Langer
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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26
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Fenton OS, Andresen JL, Paolini M, Langer R. β‐Aminoacrylate Synthetic Hydrogels: Easily Accessible and Operationally Simple Biomaterials Networks. Angew Chem Int Ed Engl 2018; 57:16026-16029. [DOI: 10.1002/anie.201808452] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/04/2018] [Indexed: 01/12/2023]
Affiliation(s)
- Owen S. Fenton
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Jason L. Andresen
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Marion Paolini
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Robert Langer
- Koch Institute for Integrative Cancer Research Massachusetts Institute of Technology Cambridge MA 02139 USA
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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27
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Schnaars C, Kildahl-Andersen G, Prandina A, Popal R, Radix S, Le Borgne M, Gjøen T, Andresen AMS, Heikal A, Økstad OA, Fröhlich C, Samuelsen Ø, Lauksund S, Jordheim LP, Rongved P, Åstrand OAH. Synthesis and Preclinical Evaluation of TPA-Based Zinc Chelators as Metallo-β-lactamase Inhibitors. ACS Infect Dis 2018; 4:1407-1422. [PMID: 30022668 DOI: 10.1021/acsinfecdis.8b00137] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The rise of antimicrobial resistance (AMR) worldwide and the increasing spread of multi-drug-resistant organisms expressing metallo-β-lactamases (MBL) require the development of efficient and clinically available MBL inhibitors. At present, no such inhibitor is available, and research is urgently needed to advance this field. We report herein the development, synthesis, and biological evaluation of chemical compounds based on the selective zinc chelator tris-picolylamine (TPA) that can restore the bactericidal activity of Meropenem (MEM) against Pseudomonas aeruginosa and Klebsiella pneumoniae expressing carbapenemases Verona integron-encoded metallo-β-lactamase (VIM-2) and New Delhi metallo-β-lactamase 1 (NDM-1), respectively. These adjuvants were prepared via standard chemical methods and evaluated in biological assays for potentiation of MEM against bacteria and toxicity (IC50) against HepG2 human liver carcinoma cells. One of the best compounds, 15, lowered the minimum inhibitory concentration (MIC) of MEM by a factor of 32-256 at 50 μM within all tested MBL-expressing clinical isolates and showed no activity toward serine carbapenemase expressing isolates. Biochemical assays with purified VIM-2 and NDM-1 and 15 resulted in inhibition kinetics with kinact/ KI of 12.5 min-1 mM-1 and 0.500 min-1 mM-1, respectively. The resistance frequency of 15 at 50 μM was in the range of 10-7 to 10-9. 15 showed good tolerance in HepG2 cells with an IC50 well above 100 μM, and an in vivo study in mice showed no acute toxic effects even at a dose of 128 mg/kg.
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Affiliation(s)
| | | | - Anthony Prandina
- Université de Lyon, Université Lyon 1, Faculté de
Pharmacie - ISPB, EA 4446 Bioactive Molecules and Medicinal Chemistry,
SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7, 69373 Lyon Cedex 8, France
| | | | - Sylvie Radix
- Université de Lyon, Université Lyon 1, Faculté de
Pharmacie - ISPB, EA 4446 Bioactive Molecules and Medicinal Chemistry,
SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7, 69373 Lyon Cedex 8, France
| | - Marc Le Borgne
- Université de Lyon, Université Lyon 1, Faculté de
Pharmacie - ISPB, EA 4446 Bioactive Molecules and Medicinal Chemistry,
SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7, 69373 Lyon Cedex 8, France
| | | | | | - Adam Heikal
- Centre for Integrative
Microbial Evolution (CIME), Faculty of Mathematics and Natural Sciences, University of Oslo, Blindern, Oslo, Norway
| | - Ole Andreas Økstad
- Centre for Integrative
Microbial Evolution (CIME), Faculty of Mathematics and Natural Sciences, University of Oslo, Blindern, Oslo, Norway
| | - Christopher Fröhlich
- Norwegian National
Advisory Unit on Detection of Antimicrobial Resistance, Department of Microbiology and Infection Control, University Hospital of North Norway, 9038 Tromsø, Norway
- NorStruct, Department of Chemistry, Faculty of Science and Technology,
SIVA Innovation Centre, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - Ørjan Samuelsen
- Norwegian National
Advisory Unit on Detection of Antimicrobial Resistance, Department of Microbiology and Infection Control, University Hospital of North Norway, 9038 Tromsø, Norway
- Department of Pharmacy, UiT − The Arctic University of Norway, 9037 Tromsø, Norway
| | - Silje Lauksund
- Norwegian National
Advisory Unit on Detection of Antimicrobial Resistance, Department of Microbiology and Infection Control, University Hospital of North Norway, 9038 Tromsø, Norway
| | - Lars Petter Jordheim
- Université Lyon, Université Claude Bernard Lyon 1, INSERM
1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche
en Cancérologie de Lyon, Lyon 69008, France
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28
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Van Erdewyk ML, Oshin KD. Crystal structure of tris[(pyridin-1-ium-2-yl)methyl]amine trichloride–methanol–water (1/1.829/0.342). IUCRDATA 2018. [DOI: 10.1107/s241431461800826x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title molecular salt, C18H21N4
3+·3Cl−.1.829CH4O.0.342H2O, the three pyridyl secondary amine N atoms are protonated with N—H...Cl hydrogen bonds present. The crystal structure contains a region of partially occupied and disordered methanol and water solvent. One of the three chloride anions is involved in hydrogen bonding to three methanol molecules, two of which are disordered.
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29
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Ruccolo S, Rauch M, Parkin G. Synthesis and Structural Characterization of Tris(isopropylbenzimidazol-2-ylthio)methyl Zinc Complexes, [TitmPriBenz]ZnX: Modulation of Transannular Zn–C Interactions. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Serge Ruccolo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Michael Rauch
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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30
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Wenzel M, Hennersdorf F, Langer M, Gloe K, Antonioli B, Buschmann HJ, Lindoy LF, Bernhard G, Gloe K, Weigand JJ. Tripodal polyamines: Adjustable receptors for cation extraction. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2017.1302953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Marco Wenzel
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | - Felix Hennersdorf
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | - Matthias Langer
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | - Kerstin Gloe
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | - Bianca Antonioli
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | | | - Leonard F. Lindoy
- School of Chemistry, The University of Sydney, Sydney, New South Wales, Australia
| | - Gert Bernhard
- Institute of Resource Ecology, Helmholtz Centre Dresden-Rossendorf, Dresden, Germany
| | - Karsten Gloe
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
| | - Jan J. Weigand
- Department of Chemistry and Food Chemistry, TU Dresden, Dresden, Germany
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31
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Buglyó P, Kacsir I, Kozsup M, Nagy I, Nagy S, Bényei AC, Kováts É, Farkas E. Tuning the redox potentials of ternary cobalt(III) complexes containing various hydroxamates. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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32
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Dancs Á, Selmeczi K, Bányai I, Darula Z, Gajda T. Increasing the histidine ‘density’ in tripodal peptides by gradual N -functionalization of tris (2-aminoethyl)amine (tren) with l -histidyl units: The effect on zinc(II) complexes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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33
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Suseelan AS, Varghese B, Edamana P, Murthy NN. Reagent‐Regulated Oxidative
O
‐Demethylation of a Ferrous Complex Stabilized by a Tetradentate N Ligand with a Methoxyphenyl Substituent. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201700946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Babu Varghese
- Sophisticated Analytical Instruments Facility (SAIF) IIT Madras 600036 Chennai India
| | - Prasad Edamana
- Sophisticated Analytical Instruments Facility (SAIF) IIT Madras 600036 Chennai India
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34
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Pentacoordinate cobalt(II) complexes with neutral tripodal N-donor ligands: Zero-field splitting for a distorted trigonal bipyramidal geometry. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.11.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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36
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Matyuska F, Szorcsik A, May NV, Dancs Á, Kováts É, Bényei A, Gajda T. Tailoring the local environment around metal ions: a solution chemical and structural study of some multidentate tripodal ligands. Dalton Trans 2017. [PMID: 28650056 DOI: 10.1039/c7dt00104e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Manganese(ii), copper(ii) and zinc(ii) complexes of four polydentate tripodal ligands (tachpyr (N,N',N''-tris(2-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane), trenpyr (tris[2-(2-pyridylmethyl)aminoethyl]amine, tach3pyr (N,N',N''-tris(3-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane) and tren3pyr (tris[2-(2-pyridylmethyl)aminoethyl]amine)) were characterized in both solution and solid states. A combined evaluation of potentiometric, UV-VIS, NMR and EPR data allowed the conclusion of both thermodynamic and structural information about the complexes formed in solution. The four tailored polydentate tripodal ligands studied here exhibit a high thermodynamic stability, and a variety of coordination environments/geometries for the studied transition metal ions. Our data indicate that tachpyr is a more efficient zinc(ii) chelator and a similar copper(ii) chelator compared to trenpyr. Considering the higher number of N-donors and conformational flexibility of trenpyr, as well as the energy demanding switch to the triaxial conformation required for metal ion binding of tachpyr, the above observation is surprising and is very likely due to the encapsulating effect of the more rigid tachpyr skeleton. This relative binding preference of tachpyr for zinc(ii) may be related to the observation that zinc(ii) is one of the principal metals targeted by tachpyr in cells. In contrast, trenpyr is a considerably more efficient manganese(ii) chelator, since it acts as a heptadentate ligand in the aqueous Mn(trenpyr) complex. The crystal structures of copper(ii) and zinc(ii) complexes of tachpyr indicated important differences in the ligand conformation, induced by the position of counter ions, as compared to earlier reports. The closely related new ligands, tach3pyr and tren3pyr, have been designed to form oligonuclear complexes. Indeed, we obtained a three dimensional polymer with a copper(ii)/tren3pyr ratio of 11/6. Within this metal-organic framework, three distinctly different copper geometries can be identified: square pyramidal, trigonal bipyramidal and tetrahedral. Two square pyramidal and four trigonal bipyramidal copper centres create a hexanuclear subunit with a large inside cavity. These moieties are linked by tetrahedral copper(ii) centres, constructing the three-dimensional polymer structure. The formation of such polynuclear complexes was not detected in solution. Both tach3pyr and tren3pyr form only mononuclear complexes with square pyramidal and trigonal bipyramidal geometries, respectively.
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Affiliation(s)
- Ferenc Matyuska
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary.
| | - Attila Szorcsik
- MTA-SZTE Bioinorganic Chemistry Research Group, Dóm tér 7, H-6720 Szeged, Hungary
| | - Nóra V May
- Research Centre for Natural Sciences HAS, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Ágnes Dancs
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary.
| | - Éva Kováts
- Institute for Solid State Physics and Optics, Wigner Research Centre for Physics HAS, Konkoly Thege Miklós u. 29-33, H-1121 Budapest, Hungary
| | - Attila Bényei
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Tamás Gajda
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary. and MTA-SZTE Bioinorganic Chemistry Research Group, Dóm tér 7, H-6720 Szeged, Hungary
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37
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Ruccolo S, Rauch M, Parkin G. Tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl metal complexes, [Tism PriBenz]M: a new class of metallacarbatranes, isomerization to a tris(N-heterocyclic carbene) derivative, and evidence for an inverted ligand field. Chem Sci 2017; 8:4465-4474. [PMID: 30155219 PMCID: PMC6100236 DOI: 10.1039/c7sc00499k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/27/2017] [Indexed: 11/22/2022] Open
Abstract
The tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl ligand, [TismPriBenz], has been employed to form carbatrane compounds of both the main group metals and transition metals, namely [TismPriBenz]Li, [TismPriBenz]MgMe, [TismPriBenz]Cu and [TismPriBenz]NiBr. In addition to the formation of atranes, a zinc compound that exhibits κ3-coordination, namely [κ3-TismPriBenz]ZnMe, has also been obtained. Furthermore, the [TismPriBenz] ligand may undergo a thermally induced rearrangement to afford a novel tripodal tris(N-heterocyclic carbene) variant, as shown by the conversion of [TismPriBenz]Cu to [κ4-C4-TismPriBenz*]Cu. The transannular M-C bond lengths in the atrane compounds are 0.19-0.32 Å longer than the sum of the respective covalent radii, which is consistent with a bonding description that features a formally zwitterionic component. Interestingly, computational studies demonstrate that the Cu-Catrane interactions in [TismPriBenz]Cu and [κ4-C4-TismPriBenz*]Cu are characterized by an "inverted ligand field", in which the occupied antibonding orbitals are localized more on carbon than on copper.
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Affiliation(s)
- Serge Ruccolo
- Department of Chemistry , Columbia University , New York 10027 , USA .
| | - Michael Rauch
- Department of Chemistry , Columbia University , New York 10027 , USA .
| | - Gerard Parkin
- Department of Chemistry , Columbia University , New York 10027 , USA .
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38
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Deka H, Ghosh S, Gogoi K, Saha S, Mondal B. Nitric Oxide Reactivity of a Cu(II) Complex of an Imidazole-Based Ligand: Aromatic C-Nitrosation Followed by the Formation of N-Nitrosohydroxylaminato Complex. Inorg Chem 2017; 56:5034-5040. [PMID: 28387516 DOI: 10.1021/acs.inorgchem.7b00069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A binuclear Cu(II) complex, 1, [Cu2(L-)2(OAc)](OAc) of imidazole-based ligand LH {LH = 2-(bis(2-ethyl-5-methyl-1H-imidazol-4-yl)methyl)phenol} was synthesized and characterized spectroscopically and structurally. Addition of an equivalent amount of nitric oxide (NO) by a gastight syringe to the acetonitrile:methanol (5:1, v/v) solution of complex 1 at room temperature resulted in the reduction of Cu(II) center to Cu(I) with concomitant C-nitrosation of the ligand. Spectroscopic characterization of the resulting Cu(I) complex (1a) of the C-nitrosylated ligand, L' {L' = 2-(bis(2-ethyl-5-methyl-1H-imidazol-4-yl)methyl)-4-nitroso-phenol} has been done. The Cu(I) complex, 1a, further reacted with NO to result in the corresponding N-nitrosohydroxylaminato complex, 2, [Cu2(L-ONNO)2](OAc)2 through the formation of a Cu(I)-nitrosyl intermediate. A small fraction of the nitrosyl intermediate decomposed to the corresponding Cu(II) complex 3, [Cu(L')2], and N2O in a parallel reaction.
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Affiliation(s)
- Hemanta Deka
- Department of Chemistry, Indian Institute of Technology Guwahati , North Guwahati, Assam 781039, India
| | - Somnath Ghosh
- Department of Chemistry, Indian Institute of Technology Guwahati , North Guwahati, Assam 781039, India
| | - Kuldeep Gogoi
- Department of Chemistry, Indian Institute of Technology Guwahati , North Guwahati, Assam 781039, India
| | - Soumen Saha
- Department of Chemistry, Indian Institute of Technology Guwahati , North Guwahati, Assam 781039, India
| | - Biplab Mondal
- Department of Chemistry, Indian Institute of Technology Guwahati , North Guwahati, Assam 781039, India
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39
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Jopp M, Becker J, Lerch M, Miska A, Hausmann H, Neiger R, Schindler S. Crystallographic Characterization of Trilostane and Derivatives. ChemistrySelect 2017. [DOI: 10.1002/slct.201601976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Melanie Jopp
- Institut für Anorganische und Analytische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
| | - Jonathan Becker
- Institut für Anorganische und Analytische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
| | - Markus Lerch
- Institut für Anorganische und Analytische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
| | - Andreas Miska
- Institut für Anorganische und Analytische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
| | - Heike Hausmann
- Institut für Organische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
| | - Reto Neiger
- Klinik für Kleintiere, Innere Medizin und Chirurgie; Justus-Liebig-Universität Gießen; Frankfurter Straße 126 35392 Gießen Germany
| | - Siegfried Schindler
- Institut für Anorganische und Analytische Chemie; Justus-Liebig-Universität Gießen; Heinrich-Buff-Ring 17 35392 Gießen Germany
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40
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Adach A. Review: an overview of recent developments in coordination chemistry of polypyrazolylmethylamines. Complexes with N-scorpionate ligands createdin situfrom pyrazole derivatives and zerovalent metals. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1278572] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Anna Adach
- Institute of Chemistry, Jan Kochanowski University of Kielce, Kielce, Poland
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41
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Dancs Á, May NV, Selmeczi K, Darula Z, Szorcsik A, Matyuska F, Páli T, Gajda T. Tuning the coordination properties of multi-histidine peptides by using a tripodal scaffold: solution chemical study and catechol oxidase mimicking. NEW J CHEM 2017. [DOI: 10.1039/c6nj03126a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Histidine-rich tripodal peptides form unique oligonuclear complexes with copper(ii), which exhibit efficient catecholase-like activity.
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Affiliation(s)
- Ágnes Dancs
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- Université de Lorraine – CNRS
| | - Nóra V. May
- Research Centre for Natural Sciences HAS
- H-1117 Budapest
- Hungary
| | - Katalin Selmeczi
- Université de Lorraine – CNRS
- UMR 7565 SRSMC
- 54506 Vandœuvre-lès-Nancy
- France
| | - Zsuzsanna Darula
- Institute of Biochemistry
- Biological Research Centre
- Hungarian Academy of Sciences
- H-6724 Szeged
- Hungary
| | - Attila Szorcsik
- MTA-SZTE Bioinorganic Chemistry Research Group
- H-6720 Szeged
- Hungary
| | - Ferenc Matyuska
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
| | - Tibor Páli
- Institute of Biophysics
- Biological Research Centre
- Hungarian Academy of Sciences
- H-6724 Szeged
- Hungary
| | - Tamás Gajda
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
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42
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Matyuska F, May NV, Bényei A, Gajda T. Control of structure, stability and catechol oxidase activity of copper(ii) complexes by the denticity of tripodal platforms. NEW J CHEM 2017. [DOI: 10.1039/c7nj02013a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The speciation and catecholase-like activity of trinuclear complexes can be fine tuned by the denticity of tripodal platforms.
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Affiliation(s)
- Ferenc Matyuska
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
| | - Nóra V. May
- Research Centre for Natural Sciences HAS
- H-1117 Budapest
- Hungary
| | - Attila Bényei
- Department of Pharmaceutical Chemistry
- University of Debrecen
- Debrecen H-4032
- Hungary
| | - Tamás Gajda
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
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43
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Chakrabarti N, Ruccolo S, Parkin G. Cadmium Compounds with an [N 3C] Atrane Motif: Evidence for the Generation of a Cadmium Hydride Species. Inorg Chem 2016; 55:12105-12109. [PMID: 27934411 PMCID: PMC5142449 DOI: 10.1021/acs.inorgchem.6b02196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 01/31/2023]
Abstract
Tris(2-pyridylthio)methane ([Tptm]H) has been employed to synthesize a series of cadmium carbatrane compounds that feature an [N3C] coordination environment. Specifically, [Tptm]H reacts with Cd[N(SiMe3)2]2 to afford [Tptm]CdN(SiMe3)2, which thereby provides access to other derivatives. For example, [Tptm]CdN(SiMe3)2 reacts with (i) CO2 to form {[Tptm]Cd(μ-NCO)}2 and (ii) Me3SiOH and Ph3SiOH to form {[κ3-Tptm]Cd(μ-OSiMe3)}2 and [Tptm]CdOSiPh3, respectively. The siloxide compound {[κ3-Tptm]Cd(μ-OSiMe3)}2 reacts with Me3SiX (X = Cl, Br, O2CMe) to give [Tptm]CdX, while the reaction with PhSiH3 in the presence of CO2 generates the formate complex, [Tptm]CdO2CH, thereby providing evidence for the generation of a proposed cadmium hydride intermediate, {[Tptm]CdH}.
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Affiliation(s)
- Neena Chakrabarti
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Serge Ruccolo
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
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44
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Long SR, Lin CY, Anslyn EV. Thermodynamic studies of dynamic metal ligands with copper(II), cobalt(II), zinc(II) and nickel(II). J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1262949] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- S. Reid Long
- Department of Chemistry, The University of Texas, Austin, TX, USA
| | - Chung-Yon Lin
- Department of Chemistry, The University of Texas, Austin, TX, USA
| | - Eric V. Anslyn
- Department of Chemistry, The University of Texas, Austin, TX, USA
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45
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Semakin AN, Kokuev AO, Nelyubina YV, Sukhorukov AY, Zhmurov PA, Ioffe SL, Tartakovsky VA. Construction of bis-, tris- and tetrahydrazones by addition of azoalkenes to amines and ammonia. Beilstein J Org Chem 2016; 12:2471-2477. [PMID: 28144315 PMCID: PMC5238579 DOI: 10.3762/bjoc.12.241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/03/2016] [Indexed: 01/30/2023] Open
Abstract
Exhaustive Michael-type alkylations of amines and ammonia with azoalkenes (generated from α-halohydrazones) were demonstrated as an efficient approach to poly(hydrazonomethyl)amines - a novel class of polynitrogen ligands. An intramolecular cyclotrimerization of C=N bonds in tris(hydrazonomethyl)amine to the respective 1,4,6,10-tetraazaadamantane derivative was demonstrated.
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Affiliation(s)
- Artem N Semakin
- Laboratory of functional organic compounds, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russia
- Moscow Chemical Lyceum 1303, Tamozhenniy proezd, 4, Moscow, 111033, Russia
| | - Aleksandr O Kokuev
- Moscow Chemical Lyceum 1303, Tamozhenniy proezd, 4, Moscow, 111033, Russia
| | - Yulia V Nelyubina
- Laboratory for X-Ray Diffraction Studies, A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova Str. 28, Moscow, 119991, Russia
| | - Alexey Yu Sukhorukov
- Laboratory of functional organic compounds, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russia
| | - Petr A Zhmurov
- Laboratory of functional organic compounds, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russia
| | - Sema L Ioffe
- Laboratory of functional organic compounds, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russia
- Moscow Chemical Lyceum 1303, Tamozhenniy proezd, 4, Moscow, 111033, Russia
| | - Vladimir A Tartakovsky
- Laboratory of functional organic compounds, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, 119991, Russia
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46
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Barsoum DN, Kyeremeh‐Mensah L, Meisner QJ, Clark RJ, Masson E, Zhu L. Zinc(II) Complexes of
N
,
N
‐Di(2‐picolyl)hydrazones. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- David N. Barsoum
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | | | - Quinton J. Meisner
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Ronald J. Clark
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
| | - Eric Masson
- Department of Chemistry and BiochemistryOhio University45701AthensOhioUSA
| | - Lei Zhu
- Department of Chemistry and BiochemistryFlorida State University95 Chieftan Way32306‐4390TallahasseeFLUSA
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47
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Rezaeivala M, Salehzadeh S, Keypour H, Ng SW, Valencia L. Synthesis, characterization and theoretical study of a new asymmetrical tripodal amine containing morpholine moiety. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2012.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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48
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Ruccolo S, Sattler W, Rong Y, Parkin G. Modulation of Zn–C Bond Lengths Induced by Ligand Architecture in Zinc Carbatrane Compounds. J Am Chem Soc 2016; 138:14542-14545. [DOI: 10.1021/jacs.6b09250] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Serge Ruccolo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Wesley Sattler
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Yi Rong
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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49
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Feng R, Huang FF, Yuan JL, Lu Z, Fang T, Nie FM. Structures and fluorescent properties of picolinato zinc(II) and cadmium(II) complexes based on tridentate and tetradentate benzimidazole ligands. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1238464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rui Feng
- Department of Chemistry, Capital Normal University, Beijing, China
| | - Fang-Fang Huang
- Department of Chemistry, Capital Normal University, Beijing, China
| | - Jia-Li Yuan
- Department of Chemistry, Capital Normal University, Beijing, China
| | - Zheng Lu
- Department of Chemistry, Capital Normal University, Beijing, China
| | | | - Feng-Mei Nie
- Department of Chemistry, Capital Normal University, Beijing, China
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50
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Herrmann R, Wittwer P, Braun T. Platinum Complexes Bearing a Tripodal Germyl Ligand. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600652] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Roy Herrmann
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Philipp Wittwer
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Thomas Braun
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
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