1
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Giri M, Dash Y, Guchhait T. Does Larger Cavity-Size Really Help Bigger Anions to Bind? A Scrutiny on Core-Expanded Calix[4]pyrroles and Their Properties. Chempluschem 2024; 89:e202300427. [PMID: 37830245 DOI: 10.1002/cplu.202300427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/14/2023]
Abstract
Calix[4]pyrroles are an important class of oligopyrrolic macrocycles and have found applications in many diverse fields including anion recognition. To modulate the properties of the calix[4]pyrrole, several structural modifications are realized. The core-expansion has attracted extra attention as it provides larger cavity-size compared to parent calix[4]pyrrole(s). This review highlights the synthetic development of various core-expanded calix[4]pyrroles and their applications in anion-binding properties. Emphasis is given to the changes in the binding properties observed with expanded versions of calix[4]pyrrole(s) in both solution and the solid states. The expanded versions of calix[4]pyrrole do not always show higher binding affinities for larger anions as anticipated. Rather, they display reduced affinities with the anions. The truncated form or asymmetric nature of the expanded versions of calix[4]pyrrole does not probably allow to access all the available binding sites for the anions and hence reduced binding affinities are observed. The receptors which contain a greater number of binding sites and are somehow rigid or preorganized apparently show enhanced binding affinities for anions. The relative binding constants for halide series indicate that the enlarged molecules are more beneficial for largest iodide among others. However, most of the receptors show selectivity towards smallest fluoride over other anions studied.
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Affiliation(s)
- Monalisa Giri
- Department of Chemistry, C. V. Raman Global University, Bhubaneswar, Odisha 752054, India
| | - Yashaswini Dash
- Department of Chemistry, C. V. Raman Global University, Bhubaneswar, Odisha 752054, India
| | - Tapas Guchhait
- Department of Chemistry, C. V. Raman Global University, Bhubaneswar, Odisha 752054, India
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2
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Trowbridge L, Averkiev B, Sues PE. Electrocatalytic Hydrogen Evolution using a Nickel-based Calixpyrrole Complex: Controlling the Secondary Coordination Sphere on an Electrode Surface. Chemistry 2023; 29:e202301920. [PMID: 37665793 PMCID: PMC10842979 DOI: 10.1002/chem.202301920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
Incorporating design elements from homogeneous catalysts to construct well defined active sites on electrode surfaces is a promising approach for developing next generation electrocatalysts for energy conversion reactions. Furthermore, if functionalities that control the electrode microenvironment could be integrated into these active sites it would be particularly appealing. In this context, a square planar nickel calixpyrrole complex, Ni(DPMDA) (DPMDA=2,2'-((diphenylmethylene)bis(1H-pyrrole-5,2-diyl))bis(methaneylylidene))bis(azaneylylidene))dianiline) with pendant amine groups is reported that forms a heterogeneous hydrogen evolution catalyst using anilinium tetrafluoroborate as the proton source. The supported Ni(DPMDA) catalyst was surprisingly stable and displayed fast reaction kinetics with turnover frequencies (TOF) up to 25,900 s-1 or 366,000 s-1 cm-2 . Kinetic isotope effect (KIE) studies revealed a KIE of 5.7, and this data, combined with Tafel slope analysis, suggested that a proton-coupled electron transfer (PCET) process involving the pendant amine groups was rate-limiting. While evidence of an outer-sphere reduction of the Ni(DPMDA) catalyst was observed, it is hypothesized that the control over the secondary coordination sphere provided by the pendant amines facilitated such high TOFs and enabled the PCET mechanism. The results reported herein provide insight into heterogeneous catalyst design and approaches for controlling the secondary coordination sphere on electrode surfaces.
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Affiliation(s)
- Logan Trowbridge
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, Kansas, 66503, USA
| | - Boris Averkiev
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, Kansas, 66503, USA
| | - Peter E Sues
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, Kansas, 66503, USA
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3
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Palladium complexes bearing calixpyrrole ligands with pendant hydrogen bond donors: Synthesis, structural characterization, electrochemistry and dihydrogen evolution. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Eickhoff L, Ohms L, Bresien J, Villinger A, Michalik D, Schulz A. A Phosphorus-Based Pacman Dication Generated by Cooperative Self-Activation of a Pacman Phosphane. Chemistry 2021; 28:e202103983. [PMID: 34761445 PMCID: PMC9298836 DOI: 10.1002/chem.202103983] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Indexed: 11/08/2022]
Abstract
Formal coordination of phosphorus(III) by a calix[4]pyrrole Schiff base ligand was achieved through the reaction of this ligand with PCl3 under basic conditions. The reaction product adopts a Pacman conformation with two P-Cl moieties, one in exo and one in endo position. It represents the first non-metal compound of calix[4]pyrrole Schiff base ligands and of Pacman ligands in general. The spatial neighborhood of the two phosphorus atoms enables cooperative reactions. As a first example, the chloride abstraction with AgOTf is presented, yielding a macrocyclic dication with two embedded phosphorus(III) monocations, which both undergo a cooperative, internal activation reaction with an adjacent C=N double bond. This intramolecular redox process affords two pentacoordinated phosphorus(V) centers within the Pacman dication. All reaction products were fully characterized and all results are supported by computations.
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Affiliation(s)
- Liesa Eickhoff
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany
| | - Leon Ohms
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany
| | - Jonas Bresien
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany
| | - Dirk Michalik
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany.,Leibniz-Institut für Katalyse e. V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Axel Schulz
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany.,Leibniz-Institut für Katalyse e. V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
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5
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Chaudhry MT, Akine S, MacLachlan MJ. Contemporary macrocycles for discrete polymetallic complexes: precise control over structure and function. Chem Soc Rev 2021; 50:10713-10732. [PMID: 34378585 DOI: 10.1039/d1cs00225b] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The growth of multimetallic clusters and complexes can proceed in the presence of suitable ligands, but often leads to polydisperse structures with poor solubility. As an alternative approach, macrocyclic molecules can anchor the multimetallic complex, directing its formation and stabilizing the resulting product. This approach can provide excellent control over the growth of clusters, and offers a handle to control solubility and other properties of the resulting complexes. In this Tutorial Review, we discuss recent activity (primarily the last two decades) directed at the controlled and reproducible synthesis of multimetallic complexes using macrocyclic ligands. Throughout the review, we focus on the unusual structures that are only accessible by using macrocycles as ligands, and their unique properties.
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Affiliation(s)
- Mohammad T Chaudhry
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada.
| | - Shigehisa Akine
- WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan. .,Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - Mark J MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada. .,WPI Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan. .,Quantum Matter Institute, University of British Columbia, 2355 East Mall, Vancouver, BC, V6T 1Z4, Canada
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6
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Ousaka N, Yamamoto S, Iida H, Iwata T, Ito S, Souza R, Hijikata Y, Irle S, Yashima E. Encapsulation of Aromatic Guests in the Bisporphyrin Cavity of a Double-Stranded Spiroborate Helicate: Thermodynamic and Kinetic Studies and the Encapsulation Mechanism. J Org Chem 2021; 86:10501-10516. [PMID: 34282918 DOI: 10.1021/acs.joc.1c01155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A double-stranded spiroborate helicate bearing a bisporphyrin unit in the middle forms an inclusion complex with electron-deficient aromatic guests that are sandwiched between the porphyrins. In the present study, we systematically investigated the effects of size, electron density, and substituents of a series of aromatic guests on inclusion complex formations within the bisporphyrin. The thermodynamic and kinetic behaviors during the guest-encapsulation process were also investigated in detail. The guest-encapsulation abilities in the helicate increased with the increasing core sizes of the electron-deficient aromatic guests and decreased with the increasing bulkiness and number of substituents of the guests. Among the naphthalenediimide derivatives, those with bulky N-substituents at both ends hardly formed an inclusion complex. Instead, they formed a [2]rotaxane-like inclusion complex through the water-mediated dynamic B-O bond cleavage/reformation of the spiroborate groups of the helicate, which enhanced the conformational flexibility of the helicate to enlarge the bisporphyrin cavity and form an inclusion complex. Based on the X-ray crystal structure of a unique pacman-like 1:1 inclusion complex between the helicate and an ammonium cation as well as the molecular dynamics simulation results, a plausible mechanism for the inclusion of a planar aromatic guest within the helicate is also proposed.
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Affiliation(s)
- Naoki Ousaka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.,Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Shinya Yamamoto
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Hiroki Iida
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Takuya Iwata
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Shingo Ito
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Rafael Souza
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Yuh Hijikata
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8601, Japan
| | - Stephan Irle
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8601, Japan
| | - Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.,Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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7
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Synthesis, Structure, and Magnetic Properties of Linear Trinuclear CuII and NiII Complexes of Porphyrin Analogues Embedded with Binaphthol Units. Symmetry (Basel) 2020. [DOI: 10.3390/sym12101610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A porphyrin analogue embedded with (S)-1,1′-bi-2-naphthol units was synthesized without reducing optical purity of the original binaphthol unit. This new macrocyclic ligand provides the hexaanionic N4O4 coordination environment that enables a linear array of three metal ions. That is, it provides the square planar O4 donor set for the central metal site and the distorted square planar N2O2 donor set for the terminal metal sites. In fact, a CuII3 complex with a Cu(1)–Cu(2) distance of 2.910 Å, a Cu(1)–Cu(2)–Cu(1′) angle of 174.7°, and a very planar Cu2O2 diamond core was obtained. The variable-temperature 1H-NMR study of the CuII3 complex showed increasing paramagnetic shifts for the naphthyl protons as temperature increased, which suggests strong antiferromagnetic coupling of CuII ions. The temperature dependence of the magnetic susceptibility indicated antiferromagnetic coupling both for the CuII3 complex (J = −434 cm−1) and for the NiII3 complex (J = −49 cm−1). The linear (L)M(µ-OR)2M(µ-OR)2M(L) core in a rigid macrocycle cavity made of aromatic components provides robust metal complexes that undergo reversible ligation at the apical sites of the central metal.
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8
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Kretschmer R. Ligands with Two Monoanionic N,N-Binding Sites: Synthesis and Coordination Chemistry. Chemistry 2020; 26:2099-2119. [PMID: 31755598 PMCID: PMC7064907 DOI: 10.1002/chem.201903442] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 11/07/2022]
Abstract
Polytopic ligands have become ubiquitous in coordination chemistry because they grant access to a variety of mono- and polynuclear complexes of transition metals as well as rare-earth and main-group elements. Nitrogen-based ditopic ligands, in which two monoanionic N,N-binding sites are framed within one molecule, are of particular importance and are therefore the primary focus of this review. In detail, bis(amidine)s, bis(guanidine)s, bis(β-diimine)s, bis(aminotroponimine)s, bis(pyrrolimine)s, and miscellaneous bis(N,N-chelating) ligands are reviewed. In addition to the general synthetic protocols, the application of these ligands is discussed along with their coordination chemistry, the multifarious binding modes, and the ability of these ligands to bridge two (or more) metal(loids).
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Affiliation(s)
- Robert Kretschmer
- Junior Professorship Inorganic Chemistry of Catalysis, Institute of Inorganic and Analytical ChemistryFriedrich Schiller University JenaHumboldtstrasse 807743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
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9
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Giordano N, Beavers CM, Kamenev KV, Love JB, Pankhurst JR, Teat SJ, Parsons S. Pressure-induced inclusion of neon in the crystal structure of a molecular Cu 2(pacman) complex at 4.67 GPa. Chem Commun (Camb) 2020; 56:3449-3452. [DOI: 10.1039/c9cc09884d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Crystals of Cu2(pacman) inflate on taking up neon at 46 000 atm through a switch in the ligand conformation.
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Affiliation(s)
- Nico Giordano
- EaStCHEM School of Chemistry and Centre for Science at Extreme Conditions
- The University of Edinburgh
- Edinburgh
- UK
- Advanced Light Source
| | - Christine M. Beavers
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
- Department of Earth & Planetary Sciences
| | - Konstantin V. Kamenev
- Centre for Science at Extreme Conditions and School of Engineering
- The University of Edinburgh
- Edinburgh
- UK
| | - Jason B. Love
- EaStCHEM School of Chemistry and Centre for Science at Extreme Conditions
- The University of Edinburgh
- Edinburgh
- UK
| | - James R. Pankhurst
- EaStCHEM School of Chemistry and Centre for Science at Extreme Conditions
- The University of Edinburgh
- Edinburgh
- UK
| | - Simon J. Teat
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Simon Parsons
- EaStCHEM School of Chemistry and Centre for Science at Extreme Conditions
- The University of Edinburgh
- Edinburgh
- UK
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10
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Pankhurst JR, Curcio M, Sproules S, Lloyd-Jones GC, Love JB. Earth-Abundant Mixed-Metal Catalysts for Hydrocarbon Oxygenation. Inorg Chem 2018; 57:5915-5928. [DOI: 10.1021/acs.inorgchem.8b00420] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- James R. Pankhurst
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Massimiliano Curcio
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Stephen Sproules
- WestCHEM School of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Guy C. Lloyd-Jones
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Jason B. Love
- EaStCHEM School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, U.K
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11
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Bell NL, Arnold PL, Love JB. Controlling uranyl oxo group interactions to group 14 elements using polypyrrolic Schiff-base macrocyclic ligands. Dalton Trans 2018; 45:15902-15909. [PMID: 27356021 DOI: 10.1039/c6dt01948j] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Heterodinuclear uranyl/group 14 complexes of the aryl- and anthracenyl-linked Schiff-base macrocyclic ligands LMe and LA were synthesised by reaction of UO2(H2L) with M{N(SiMe3)2}2 (M = Ge, Sn, Pb). For complexes of the anthracenyl-linked ligand (LA) the group 14 metal sits out of the N4-donor plane by up to 0.7 Å resulting in relatively short MOUO distances which decrease down the group; however, the solid state structures and IR spectroscopic analyses suggest little interaction occurs between the oxo and group 14 metal. In contrast, the smaller aryl-linked ligand (LMe) enforces greater interaction between the metals; only the PbII complex was cleanly accessible although this complex was relatively unstable in the presence of HN(SiMe3)2 and some organic oxidants. In this case, the equatorial coordination of pyridine-N-oxide causes a 0.08 Å elongation of the endo UO bond and a clear interaction of the uranyl ion with the Pb(ii) cation in the second donor compartment.
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Affiliation(s)
- Nicola L Bell
- EaStCHEM School of chemistry, Joseph Black Building, The King's Buildings, The University of Edinburgh, West Mains Road, Edinburgh EH9 3FJ, UK.
| | - Polly L Arnold
- EaStCHEM School of chemistry, Joseph Black Building, The King's Buildings, The University of Edinburgh, West Mains Road, Edinburgh EH9 3FJ, UK.
| | - Jason B Love
- EaStCHEM School of chemistry, Joseph Black Building, The King's Buildings, The University of Edinburgh, West Mains Road, Edinburgh EH9 3FJ, UK.
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12
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Connolly EA, Leeland JW, Love JB. Mono- and Dinuclear Macrocyclic Calcium Complexes as Platforms for Mixed-Metal Complexes and Clusters. Inorg Chem 2016; 55:840-7. [PMID: 26709870 DOI: 10.1021/acs.inorgchem.5b02289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mono- and dinuclear calcium complexes of the Schiff-base macrocycles H4L have been prepared and characterized spectroscopically and crystallographically. In the formation of Ca(THF)2(H2L(1)), Ca2(THF)2(μ-THF)(L(1)), and Ca2(THF)4(L(2)), the ligand framework adopts a bowl-shaped conformation instead of the conventional wedge, Pacman-shaped structure as seen with the anthracenyl-hinged complex Ca2(py)5(L(3)). The mononuclear calcium complex Ca(THF)2(H2L(1)) reacts with various equivalents of LiN(SiMe3)2 to form calcium/alkali metal clusters and dinuclear transition metal complexes when reacted subsequently with transition metal salts. The dinuclear calcium complex Ca2(THF)2(μ-THF)(L(1)), when reacted with various equivalents of NaOH, is shown to act as a platform for the formation of calcium/alkali metal hydroxide clusters, displaying alternate wedged and bowl-shaped conformations.
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Affiliation(s)
- Emma A Connolly
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
| | - James W Leeland
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
| | - Jason B Love
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
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13
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Stevens CJ, Prescimone A, Tuna F, McInnes EJL, Parsons S, Morrison CA, Arnold PL, Love JB. Inter- versus Intramolecular Structural Manipulation of a Dichromium(II) Pacman Complex through Pressure Variation. Inorg Chem 2016; 55:214-20. [PMID: 26683991 DOI: 10.1021/acs.inorgchem.5b02151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effect of pressure on the intranuclear M···M separation and intermolecular secondary interactions in the dinuclear chromium Pacman complex [Cr2(L)](C6H6) was evaluated because this compound contains both a short Cr···Cr separation and an exogenously bound molecule of benzene in the solid state. The electronic structure of [Cr2(L)] was determined by electron paramagnetic resonance spectroscopy, SQUID magnetometry, and density functional theory calculations and shows a diamagnetic ground state through antiferromagnetic exchange, with no evidence for a Cr-Cr bond. Analysis of the solid-state structures of [Cr2(L)](C6H6) at pressures varying from ambient to 3.0 GPa shows little deformation in the Cr···Cr separation, i.e., no Cr-Cr bond formation, but instead a significantly increased interaction between the exogenous arene and the chromium iminopyrrolide environment. It is therefore apparent from this analysis that [Cr2(L)] would be best exploited as a rigid chemical synthon, with pressure regulation being used to mediate the approach and secondary interactions of possible substrates.
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Affiliation(s)
- Charlotte J Stevens
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Alessandro Prescimone
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Floriana Tuna
- EPSRC National EPR Facility, School of Chemistry and Photon Science Institute, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Eric J L McInnes
- EPSRC National EPR Facility, School of Chemistry and Photon Science Institute, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Simon Parsons
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Carole A Morrison
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Polly L Arnold
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Jason B Love
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, U.K
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14
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Altmann PJ, Pöthig A. Capsoplexes: encapsulating complexes via guest recognition. Chem Commun (Camb) 2016; 52:9089-92. [DOI: 10.1039/c6cc00507a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A new dinuclear Ni–NHC complex is able to selectively recognise and self-assemble with guests via tennis-ball like encapsulation, exemplarily demonstrated employing halides.
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Affiliation(s)
- Philipp J. Altmann
- Catalysis Research Center & Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - Alexander Pöthig
- Catalysis Research Center & Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
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15
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Su DM, Zheng XJ, Schreckenbach G, Pan QJ. Highly Diverse Bonding between Two U3+ Ions When Ligated by a Flexible Polypyrrolic Macrocycle. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00649] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong-Mei Su
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
| | - Xiu-Jun Zheng
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
| | - Georg Schreckenbach
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada, R3T 2N2
| | - Qing-Jiang Pan
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
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16
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Pankhurst JR, Cadenbach T, Betz D, Finn C, Love JB. Towards dipyrrins: oxidation and metalation of acyclic and macrocyclic Schiff-base dipyrromethanes. Dalton Trans 2015; 44:2066-70. [PMID: 25563854 DOI: 10.1039/c4dt03592e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of acyclic Schiff-base dipyrromethanes cleanly results in dipyrrins, whereas the macrocyclic 'Pacman' analogues either decompose or form new dinuclear copper(ii) complexes that are inert to ligand oxidation; the unhindered hydrogen substituent at the meso-carbon allows new structural motifs to form.
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Affiliation(s)
- James R Pankhurst
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK.
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17
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Zegke M, Nichol GS, Arnold PL, Love JB. Catalytic one-electron reduction of uranyl(VI) to Group 1 uranyl(V) complexes via Al(III) coordination. Chem Commun (Camb) 2015; 51:5876-9. [PMID: 25727815 DOI: 10.1039/c5cc00867k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Reactions between the uranyl(VI) Pacman complex [(UO2)(py)(H2L)] of the Schiff-base polypyrrolic macrocycle L and Tebbe's reagent or DIBAL result in the first selective reductive functionalisation of the uranyl oxo by Al to form [(py)(R2AlOUO)(py)(H2L)] (R = Me or (i)Bu). The clean displacement of the oxo-coordinated Al(III) by Group 1 cations has enabled the development of a one-pot, DIBAL-catalysed reduction of the U(VI) uranyl complexes to a series of new, mono-oxo alkali-metal-functionalised uranyl(V) complexes [(py)3(MOUO)(py)(H2L)] (M = Li, Na, K).
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Affiliation(s)
- Markus Zegke
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK.
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18
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Kumar R, Mani G. Exhibition of the Brønsted acid–base character of a Schiff base in palladium(ii) complex formation: lithium complexation, fluxional properties and catalysis of Suzuki reactions in water. Dalton Trans 2015; 44:6896-908. [DOI: 10.1039/c5dt00438a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Brønsted acid–base character of bis(iminopyrrolylmethyl)amine was shown through the X-ray structures of palladium complexes. The bischelated palladium complex is fluxional as studied by the VT 1H NMR method and effectively catalyzes Suzuki reactions in water.
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Affiliation(s)
- Rajnish Kumar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
| | - Ganesan Mani
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
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19
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Arnold PL, Stevens CJ, Farnaby JH, Gardiner MG, Nichol GS, Love JB. New Chemistry from an Old Reagent: Mono- and Dinuclear Macrocyclic Uranium(III) Complexes from [U(BH4)3(THF)2]. J Am Chem Soc 2014; 136:10218-21. [DOI: 10.1021/ja504835a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Charlotte J. Stevens
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Joy H. Farnaby
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Michael G. Gardiner
- School
of Physical Sciences (Chemistry), University of Tasmania, Private
Bag 75, Hobart, Tasmania 7001, Australia
| | - Gary S. Nichol
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Jason B. Love
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
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20
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Stevens C, Nichol GS, Arnold PL, Love JB. Isocyanide and Phosphine Oxide Coordination in Binuclear Chromium Pacman Complexes. Organometallics 2013; 32:6879-6882. [PMID: 24489428 PMCID: PMC3905932 DOI: 10.1021/om4009313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Indexed: 01/13/2023]
Abstract
The new binuclear chromium Pacman complex [Cr2(L)] of the Schiff base pyrrole macrocycle H4L has been synthesized and structurally characterized. Addition of isocyanide, C≡NR (R = xylyl, tBu), or triphenylphosphine oxide donors to [Cr2(L)] gives contrasting chemistry with the formation of the new coordination compounds [Cr2(μ-CNR)(L)], in which the isocyanides bridge the two Cr(II) centers, and [Cr2(OPPh3)2(L)], a Cr(II) phosphine oxide adduct with the ligands exogenous to the cleft.
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Affiliation(s)
- Charlotte
J. Stevens
- EaStCHEM
School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K.
| | - Gary S. Nichol
- EaStCHEM
School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K.
| | - Polly L. Arnold
- EaStCHEM
School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K.
| | - Jason B. Love
- EaStCHEM
School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K.
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21
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McSkimming A, Shrestha S, Bhadbhade MM, Thordarson P, Colbran SB. Macrocyclic Bis(phenanthroline-pyrrole): A Convenient One-Pot Synthesis, Structure(s), Spectroscopic, and Redox Properties, and the Binding of Amine Guests, Protons, and Lanthanide Ions. Chem Asian J 2013; 9:136-45. [DOI: 10.1002/asia.201301053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Indexed: 02/02/2023]
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22
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Dunn TJ, Chiang L, Ramogida CF, Hazin K, Webb MI, Katz MJ, Storr T. Class III Delocalization and Exciton Coupling in a Bimetallic Bis-ligand Radical Complex. Chemistry 2013; 19:9606-18. [DOI: 10.1002/chem.201300798] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 11/07/2022]
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23
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Arnold PL, Hollis E, Nichol GS, Love JB, Griveau JC, Caciuffo R, Magnani N, Maron L, Castro L, Yahia A, Odoh SO, Schreckenbach G. Oxo-functionalization and reduction of the uranyl ion through lanthanide-element bond homolysis: synthetic, structural, and bonding analysis of a series of singly reduced uranyl-rare earth 5f1-4f(n) complexes. J Am Chem Soc 2013; 135:3841-54. [PMID: 23451865 DOI: 10.1021/ja308993g] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The heterobimetallic complexes [{UO2Ln(py)2(L)}2], combining a singly reduced uranyl cation and a rare-earth trication in a binucleating polypyrrole Schiff-base macrocycle (Pacman) and bridged through a uranyl oxo-group, have been prepared for Ln = Sc, Y, Ce, Sm, Eu, Gd, Dy, Er, Yb, and Lu. These compounds are formed by the single-electron reduction of the Pacman uranyl complex [UO2(py)(H2L)] by the rare-earth complexes Ln(III)(A)3 (A = N(SiMe3)2, OC6H3Bu(t)2-2,6) via homolysis of a Ln-A bond. The complexes are dimeric through mutual uranyl exo-oxo coordination but can be cleaved to form the trimetallic, monouranyl "ate" complexes [(py)3LiOUO(μ-X)Ln(py)(L)] by the addition of lithium halides. X-ray crystallographic structural characterization of many examples reveals very similar features for monomeric and dimeric series, the dimers containing an asymmetric U2O2 diamond core with shorter uranyl U═O distances than in the monomeric complexes. The synthesis by Ln(III)-A homolysis allows [5f(1)-4f(n)]2 and Li[5f(1)-4f(n)] complexes with oxo-bridged metal cations to be made for all possible 4f(n) configurations. Variable-temperature SQUID magnetometry and IR, NIR, and EPR spectroscopies on the complexes are utilized to provide a basis for the better understanding of the electronic structure of f-block complexes and their f-electron exchange interactions. Furthermore, the structures, calculated by restricted-core or all-electron methods, are compared along with the proposed mechanism of formation of the complexes. A strong antiferromagnetic coupling between the metal centers, mediated by the oxo groups, exists in the U(V)Sm(III) monomer, whereas the dimeric U(V)Dy(III) complex was found to show magnetic bistability at 3 K, a property required for the development of single-molecule magnets.
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Affiliation(s)
- Polly L Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh, EH9 3JJ, UK.
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24
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Kumar R, Guchhait T, Mani G. Synthesis and X-ray Structures of Novel Macrocycles and Macrobicycles Containing N,N-Di(pyrrolylmethyl)-N-methylamine Moiety: Preliminary Anion Binding Study. Inorg Chem 2012; 51:9029-38. [DOI: 10.1021/ic3011822] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Rajnish Kumar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Tapas Guchhait
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Ganesan Mani
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
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25
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Vigato P, Peruzzo V, Tamburini S. Acyclic and cyclic compartmental ligands: Recent results and perspectives. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.01.009] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Yin Z, Yan Y, Sun S, Wang W. Syntheses, structures, and properties of Ni(II) complexes with 5,5′-bis(4-halogenphenyl)diazo-dipyrromethane. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.663493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Zhenming Yin
- a College of Chemistry , Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University , Tianjin 300387 , China
| | - Ying Yan
- a College of Chemistry , Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University , Tianjin 300387 , China
| | - Shipeng Sun
- a College of Chemistry , Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University , Tianjin 300387 , China
| | - Wuyan Wang
- a College of Chemistry , Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University , Tianjin 300387 , China
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27
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Leeland JW, Finn C, Escuyer B, Kawaguchi H, Nichol GS, Slawin AMZ, Love JB. Synthesis and structures of transition metal pacman complexes of heteroditopic Schiff-base pyrrole macrocycles. Dalton Trans 2012; 41:13815-31. [DOI: 10.1039/c2dt31850d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Devoille AMJ, Love JB. Double-pillared cobalt Pacman complexes: synthesis, structures and oxygen reduction catalysis. Dalton Trans 2012; 41:65-72. [DOI: 10.1039/c1dt11424g] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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29
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Herbert DE, Ozerov OV. Binuclear Palladium Complexes Supported by Bridged Pincer Ligands. Organometallics 2011. [DOI: 10.1021/om2008056] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- David E. Herbert
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
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30
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Bejger C, Davis CM, Park JS, M. Lynch V, Love JB, Sessler JL. Palladium Induced Macrocyclic Preorganization for Stabilization of a Tetrathiafulvalene Mixed-Valence Dimer. Org Lett 2011; 13:4902-5. [DOI: 10.1021/ol201992x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christopher Bejger
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Christina M. Davis
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jung Su Park
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Vincent M. Lynch
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jason B. Love
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jonathan L. Sessler
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas, 78712, Department of Chemistry, Yonsei University, Seoul 120-749, South Korea, and EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
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31
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Rambo BM, Sessler JL. Oligopyrrole macrocycles: receptors and chemosensors for potentially hazardous materials. Chemistry 2011; 17:4946-59. [PMID: 21465591 PMCID: PMC3133723 DOI: 10.1002/chem.201100050] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Oligopyrroles represent a diverse class of molecular receptors that have been utilized in a growing number of applications. Recently, these systems have attracted interest as receptors and chemosensors for hazardous materials, including harmful anionic species, high-valent actinide cations, and nitroaromatic explosives. These versatile molecular receptors have been used to develop rudimentary colorimetric and fluorimetric assays for hazardous materials.
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Affiliation(s)
- Brett M. Rambo
- Department of Chemistry and Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165 (USA), Fax: (+1) 512-471-7550
- Signature Science, LLC, 8329 North MoPac Expressway, Austin, TX 78759 (USA), Fax: (+1) 512-533-9563
| | - Jonathan L. Sessler
- Department of Chemistry and Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165 (USA), Fax: (+1) 512-471-7550
- Department of Chemistry, Yonsei University, Seoul 120-749 (Korea)
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32
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Leeland JW, White FJ, Love JB. Encapsulation of a Magnesium Hydroxide Cubane by a Bowl-Shaped Polypyrrolic Schiff Base Macrocycle. J Am Chem Soc 2011; 133:7320-3. [PMID: 21517021 DOI: 10.1021/ja201630b] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James W. Leeland
- EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
| | - Fraser J. White
- EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
| | - Jason B. Love
- EaStCHEM School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
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33
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Expandierte Porphyrine: überraschende Strukturen, elektronische Eigenschaften und Reaktivitäten. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201003909] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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34
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Saito S, Osuka A. Expanded Porphyrins: Intriguing Structures, Electronic Properties, and Reactivities. Angew Chem Int Ed Engl 2011; 50:4342-73. [PMID: 21491551 DOI: 10.1002/anie.201003909] [Citation(s) in RCA: 530] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Indexed: 01/07/2023]
Affiliation(s)
- Shohei Saito
- Department of Chemistry, Graduate School of Science, Kyoto University
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35
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Salassa G, Castilla AM, Kleij AW. Cooperative self-assembly of a macrocyclic Schiff base complex. Dalton Trans 2011; 40:5236-43. [PMID: 21455521 DOI: 10.1039/c1dt10069f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal template approach affords in high yield a tetra-Zn(salphen) macrocycle (3) which shows strong and cooperative self-assembly mediated by the formation of Zn(salphen) dimer units held together via μ(2)-phenoxo interactions. A cooperative binding mode for the tetranuclear Zn(4) macrocycle 3 is supported by comparison of UV-vis and fluorescence titration data recorded for 3 when compared with respective mononuclear and dinuclear Zn(salphen) model compounds. UV-vis dilution experiments carried out for Zn(4) macrocycle 3 and its Pd(4) analogue 4, as well as comparative TEM studies involving the same tetranuclear macrocycles further support the strong assembly behavior of 3. This self-assembly seems to be primarily dictated by its ability to form multiple, self-assembled dimeric [Zn(salphen)](2) units.
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Affiliation(s)
- Giovanni Salassa
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007, Tarragona, Spain
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36
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Arnold PL, Potter NA, Magnani N, Apostolidis C, Griveau JC, Colineau E, Morgenstern A, Caciuffo R, Love JB. Synthesis of bimetallic uranium and neptunium complexes of a binucleating macrocycle and determination of the solid-state structure by magnetic analysis. Inorg Chem 2010; 49:5341-3. [PMID: 20503974 DOI: 10.1021/ic100374j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Syntheses of the bimetallic uranium(III) and neptunium(III) complexes [(UI)(2)(L)], [(NpI)(2)(L)], and [{U(BH(4))}(2)(L)] of the Schiff-base pyrrole macrocycles L are described. In the absence of single-crystal structural data, fitting of the variable-temperature solid-state magnetic data allows the prediction of polymeric structures for these compounds in the solid state.
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Affiliation(s)
- Polly L Arnold
- School of Chemistry, University of Edinburgh, Edinburgh EH9 3JJ, UK.
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37
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Pan QJ, Schreckenbach G. Binuclear Hexa- and Pentavalent Uranium Complexes with a Polypyrrolic Ligand: A Density Functional Study of Water- and Hydronium-Induced Reactions. Inorg Chem 2010; 49:6509-17. [DOI: 10.1021/ic100245a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qing-Jiang Pan
- Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry and Laboratory of Physical Chemistry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
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38
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Pan QJ, Shamov G, Schreckenbach G. Binuclear Uranium(VI) Complexes with a “Pacman” Expanded Porphyrin: Computational Evidence for Highly Unusual Bis-Actinyl Structures. Chemistry 2010; 16:2282-90. [DOI: 10.1002/chem.200902014] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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39
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Leeland JW, Slawin AMZ, Love JB. Mononuclear and Mixed-Metal Dimethyltin Pacman Complexes of a Schiff-Base Pyrrole Macrocycle. Organometallics 2010. [DOI: 10.1021/om901081h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- James W. Leeland
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, U.K
| | - Jason B. Love
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
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40
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Wikstrom JP, Filatov AS, Mikhalyova EA, Shatruk M, Foxman BM, Rybak-Akimova EV. Carbonate formation within a nickel dimer: synthesis of a coordinatively unsaturated bis(μ-hydroxo) dinickel complex and its reactivity toward carbon dioxide. Dalton Trans 2010; 39:2504-14. [DOI: 10.1039/b916832j] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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41
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Arnold PL, Patel D, Pécharman AF, Wilson C, Love JB. Equatorial ligand substitution by hydroxide in uranyl Pacman complexes of a Schiff-base pyrrole macrocycle. Dalton Trans 2010; 39:3501-8. [DOI: 10.1039/b922115h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Synthesis, characterisation of a complex of Cu(II) with a multidentate macrocyclic ligand and its interactions with anions. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.05.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Askarizadeh E, Devoille AMJ, Boghaei DM, Slawin AMZ, Love JB. Ligand Modifications for Tailoring the Binuclear Microenvironments in Schiff-Base Calixpyrrole Pacman Complexes. Inorg Chem 2009; 48:7491-500. [DOI: 10.1021/ic900871g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Elham Askarizadeh
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
- Department of Chemistry, Sharif University of Technology, P.O. Box: 11155-3516, Tehran, Iran
| | - Aline M. J. Devoille
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
| | - Davar M. Boghaei
- Department of Chemistry, Sharif University of Technology, P.O. Box: 11155-3516, Tehran, Iran
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, U.K
| | - Jason. B. Love
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, U.K
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44
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Leung ACW, Hui JKH, Chong JH, MacLachlan MJ. Bimetallic Schiff base complexes: models for conjugated shape-persistent metallopolymers. Dalton Trans 2009:5199-210. [DOI: 10.1039/b903963e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Love JB. A macrocyclic approach to transition metal and uranyl Pacman complexes. Chem Commun (Camb) 2009:3154-65. [DOI: 10.1039/b904189c] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Svorec J, Valko M, Moncol J, Mazúr M, Melník M, Telser J. Determination of intermolecular copper–copper distances from the EPR half-field transitions and their comparison with distances from X-ray structures: applications to copper(II) complexes with biologically important ligands. TRANSIT METAL CHEM 2008. [DOI: 10.1007/s11243-008-9168-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Berard JJ, Schreckenbach G, Arnold PL, Patel D, Love JB. Computational Density Functional Study of Polypyrrolic Macrocycles: Analysis of Actinyl-Oxo to 3d Transition Metal Bonding. Inorg Chem 2008; 47:11583-92. [DOI: 10.1021/ic8010772] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ames KA, Collinson SR, Blake AJ, Wilson C, Love JB, Bruce DW, Donnio B, Guillon D, Schröder M. Design of Neutral Metallomesogens from 5,5-Dimethyldipyrromethane: Metal Ion Mediated Control of Folding and Hairpin Structures. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800676] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Boden BN, Hui JKH, MacLachlan MJ. Social and Antisocial [3 + 3] Schiff Base Macrocycles with Isomeric Backbones. J Org Chem 2008; 73:8069-72. [DOI: 10.1021/jo801069g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Britta N. Boden
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1 Canada
| | - Joseph K.-H. Hui
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1 Canada
| | - Mark J. MacLachlan
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1 Canada
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Katsiaouni S, Dechert S, Briñas R, Brückner C, Meyer F. Schiff Base Macrocycles Containing Pyrroles and Pyrazoles. Chemistry 2008; 14:4823-35. [DOI: 10.1002/chem.200701769] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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