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Wilson LRB, Coletta M, Singh MK, Teat SJ, Brookfield A, Shanmugam M, McInnes EJL, Piligkos S, Dalgarno SJ, Brechin EK. A bis-calix[4]arene-supported [CuII16] cage. Dalton Trans 2023. [PMID: 37325815 DOI: 10.1039/d3dt01448g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Reaction of 2,2'-bis-p-tBu-calix[4]arene (H8L) with Cu(NO3)2·3H2O and N-methyldiethanolamine (Me-deaH2) in a basic dmf/MeOH mixture affords [CuII16(L)2(Me-dea)4(μ4-NO3)2(μ-OH)4(dmf)3.5(MeOH)0.5(H2O)2](H6L)·16dmf·4H2O (4), following slow evaporation of the mother liquor. The central core of the metallic skeleton describes a tetracapped square prism, [Cu12], in which the four capping metal ions are the CuII ions housed in the calix[4]arene polyphenolic pockets. The [CuII8] square prism is held together "internally" by a combination of hydroxide and nitrate anions, with the N-methyldiethanolamine co-ligands forming dimeric [CuII2] units which edge-cap above and below the upper and lower square faces of the prism. Charge balance is maintained through the presence of one doubly deprotonated H6L2- ligand per [Cu16] cluster. Magnetic susceptibility measurements reveal the predominance of strong antiferromagnetic exchange interactions and an S = 1 ground state, while EPR is consistent with a large zero-field splitting.
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Affiliation(s)
- Lucinda R B Wilson
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
| | - Marco Coletta
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
| | - Mukesh K Singh
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
| | - Simon J Teat
- Station 11.3.1, Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Adam Brookfield
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, England, M13 9PL, UK.
| | - Muralidharan Shanmugam
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, England, M13 9PL, UK.
| | - Eric J L McInnes
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, England, M13 9PL, UK.
| | - Stergios Piligkos
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Copenhagen, Denmark.
| | - Scott J Dalgarno
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland, EH14 4AS, UK.
| | - Euan K Brechin
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
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2
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Wilson LRB, Coletta M, Jose R, Rajaraman G, Dalgarno SJ, Brechin EK. Oxidation state variation in bis-calix[4]arene supported decametallic Mn clusters. Dalton Trans 2021; 50:17566-17572. [PMID: 34816846 DOI: 10.1039/d1dt03410c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of MnCl2·4H2O, H8L (2,2'-bis-p-tBu-calix[4]arene) and NEt3 in a dmf/MeOH solvent mixture results in the formation of a mixed valent decametallic cluster of formula [MnII6MnIII4(L)2(μ3-OH)4(μ-OH)4(MeOH)4(dmf)4(MeCN)2]·MeCN (3). Complex 3 crystallises in the monoclinic space group P21/n with the asymmetric unit comprising half of the compound. Structure solution reveals that the bis-calix[4]arene ligands are arranged such that one TBC[4] moiety in each has undergone inversion in order to accommodate a [MnIII4MnII6] metallic skeleton that describes three vertex-sharing [MnIII2MnII2] butterflies. The structure is closely related to the species [MnIII6MnII4(L)2(μ3-O)2(μ3-OH)2(μ-OMe)4(H2O)4(dmf)8]·4dmf (4), the major difference being the oxidation level of the Mn ions in the core of the compound. DFT calculations on the full structures reveal that replacing the MnIII ions in 4 for MnII ions in 3 results in a significant decrease in the magnitude of some antiferromagnetic exchange contributions, a switch from ferromagnetic to antiferromagnetic in others, and the loss of significant spin frustration.
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Affiliation(s)
- Lucinda R B Wilson
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
| | - Marco Coletta
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
| | - Reshma Jose
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Scott J Dalgarno
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland, EH14 4AS, UK.
| | - Euan K Brechin
- EastCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, Scotland, EH9 3FJ, UK.
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3
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Farwa U, Jung SH, Ryu JY, Pait M, Singh N, Cho S, Lee MH, Lee J. Selective formation of dinuclear and heptanuclear Zn(II), Ni(II), and Co(II) metal clusters from a simple dialdehyde. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Coletta M, Sanz S, Cutler DJ, Teat SJ, Gagnon KJ, Singh MK, Brechin EK, Dalgarno SJ. Magneto-structural studies of an unusual [Mn IIIMn IIGd III(OR) 4] 4- partial cubane from 2,2'-bis- p- tBu-calix[4]arene. Dalton Trans 2020; 49:14790-14797. [PMID: 33052369 DOI: 10.1039/d0dt02731f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Reaction of 2,2'-bis-p-tBu-calix[4]arene (H8L) with MnCl2·4H2O, GdCl3·6H2O and 2,6-pyridinedimethanol (H2pdm) affords [MnIIIMnIIGdIII(H3L)(pdmH)(pdm)(MeOH)2(dmf)]·3MeCN·dmf (3·3MeCN·dmf) upon vapour diffusion of MeCN into the basic dmf/MeOH mother liquor. 3 crystallises in the tetragonal space group P41212 with the asymmetric unit comprising the entire cluster. The highly unusual core contains a triangular arrangement of MnIIIMnIIGdIII ions housed within a [MnIIIMnIIGdIII(OR)4]4- partial cubane. Magnetic susceptibility and magnetisation data reveal best fit parameters JMn(II)-Mn(III) = +0.415 cm-1, JMn(III)-Gd(III) = +0.221 cm-1, JMn(II)-Gd(III) = -0.258 cm-1 and DMn(III) = -4.139 cm-1. Theoretically derived magnetic exchange interactions, anisotropy parameters, and magneto-structural correlations for 3 are in excellent agreement with the experimental data.
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Affiliation(s)
- Marco Coletta
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, Scotland EH14 4AS, UK.
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5
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Coletta M, Sanz S, Brechin EK, Dalgarno SJ. With complements of the ligands: an unusual S-shaped [Mn7]2 assembly from tethered calixarenes. Dalton Trans 2020; 49:9882-9887. [DOI: 10.1039/d0dt01766c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A large S-shaped [MnIII5MnII2]2 assembly (∼40 Å top to tail) has been formed with bis-p-tBu-calix[4]arene and 2-(hydroxymethyl)pyridine as a co-ligand, with the former existing unusually in both syn and anti-conformations (as shown).
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Affiliation(s)
- Marco Coletta
- EastCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
- Institute of Chemical Sciences
| | - Sergio Sanz
- EastCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Euan K. Brechin
- EastCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
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6
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Fuller RO, Koutsantonis GA, Ogden MI. Magnetic properties of calixarene-supported metal coordination clusters. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213066] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Vasylevskyi S, Holzheu A, Fromm KM. Solid-state structure and antimicrobial and cytotoxicity studies of a cucurbit[6]uril-like Cu 6L 4 constructed from 3,5-bis[(1H-tetrazol-5-yl)methyl]-4H-1,2,4-triazol-4-amine. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:1413-1419. [PMID: 30398196 DOI: 10.1107/s2053229618013670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/25/2018] [Indexed: 11/10/2022]
Abstract
3,5-Bis[(1H-tetrazol-5-yl)methyl]-4H-1,2,4-triazol-4-amine (H2L) associates under deprotonation with CuSO4 in aqueous medium to form a new waisted barrel-shaped M6L4 cluster, namely hexaaquatetrakis{μ4-3,5-bis[(1H-tetrazol-5-yl)methyl]-4H-1,2,4-triazol-4-amine}-μ4-sulfato-hexacopper(II) sulfate hydrate, [Cu6(SO4)(C6H6N12)4(H2O)6]SO4·nH2O (n = ∼23) (1). Cluster 1 resembles concave cucurbit[6]uril and has one disordered sulfate anion trapped inside the cage, which additionally stabilizes the Cu6 unit. The CuII ions have either a square-pyramidal or a distorted octahedral geometry. The equatorial positions are filled by N atoms from the L2- ligand, while the axial positions are occupied by coordinated water molecules and O atoms of the sulfate counter-ion. In the solid state, the Cu6 clusters are connected through a large number of hydrogen bonds formed by uncoordinated water molecules and an additional sulfate anion. The compound shows good antimicrobial activity against E. coli tested with the Kirby Bauer approach. In addition, the cell viability towards HeLa and L-929 cells was studied.
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Affiliation(s)
- Serhii Vasylevskyi
- Chemistry Department, University of Fribourg, Chemin du Musée 9, Fribourg, CH-1700, Switzerland
| | - Anja Holzheu
- Chemistry Department, University of Fribourg, Chemin du Musée 9, Fribourg, CH-1700, Switzerland
| | - Katharina M Fromm
- Chemistry Department, University of Fribourg, Chemin du Musée 9, Fribourg, CH-1700, Switzerland
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8
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Coletta M, McLellan R, Sanz S, Gagnon KJ, Teat SJ, Brechin EK, Dalgarno SJ. A New Family of 3
d
–4
f
Bis‐Calix[4]arene‐Supported Clusters. Chemistry 2017; 23:14073-14079. [DOI: 10.1002/chem.201703197] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Marco Coletta
- Institute of Chemical Sciences Heriot-Watt University, Riccarton Edinburgh EH14 4AS UK
| | - Ross McLellan
- Institute of Chemical Sciences Heriot-Watt University, Riccarton Edinburgh EH14 4AS UK
| | - Sergio Sanz
- EaStCHEM School of Chemistry The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Kevin J. Gagnon
- Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 947240 USA
| | - Simon J. Teat
- Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA 947240 USA
| | - Euan K. Brechin
- EaStCHEM School of Chemistry The University of Edinburgh David Brewster Road Edinburgh EH9 3FJ UK
| | - Scott J. Dalgarno
- Institute of Chemical Sciences Heriot-Watt University, Riccarton Edinburgh EH14 4AS UK
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9
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McLellan R, Palacios MA, Sanz S, Brechin EK, Dalgarno SJ. Importance of Steric Influences in the Construction of Multicomponent Hybrid Polymetallic Clusters. Inorg Chem 2017; 56:10044-10053. [DOI: 10.1021/acs.inorgchem.7b01566] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ross McLellan
- Institute of Chemical
Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, Scotland
| | - Maria A. Palacios
- EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland
| | - Sergio Sanz
- EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland
| | - Euan K. Brechin
- EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland
| | - Scott J. Dalgarno
- Institute of Chemical
Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, Scotland
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10
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Coletta M, Sanz S, McCormick LJ, Teat SJ, Brechin EK, Dalgarno SJ. The remarkable influence of N,O-ligands in the assembly of a bis-calix[4]arene-supported [MnIV2MnIII10MnII8] cluster. Dalton Trans 2017; 46:16807-16811. [DOI: 10.1039/c7dt04233g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis-calix[4]arene is a highly versatile ligand that is capable of forming a range of polymetallic clusters. Use of an N,O-chelating co-ligand affords a very high nuclearity mixed-valence Mn cluster (shown here) that displays coordination modes relative to each ligand type.
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Affiliation(s)
- Marco Coletta
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - Sergio Sanz
- EastCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Laura J. McCormick
- Station 11.3.1
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Simon J. Teat
- Station 11.3.1
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Euan K. Brechin
- EastCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
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11
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Coletta M, McLellan R, Murphy P, Leube BT, Sanz S, Clowes R, Gagnon KJ, Teat SJ, Cooper AI, Paterson MJ, Brechin EK, Dalgarno SJ. Bis-Calix[4]arenes: From Ligand Design to the Directed Assembly of a Metal-Organic Trigonal Antiprism. Chemistry 2016; 22:8791-5. [PMID: 27166930 DOI: 10.1002/chem.201600762] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Indexed: 11/05/2022]
Abstract
Calix[4]arenes (C[4]s) are versatile platforms for the construction of polymetallic clusters containing paramagnetic metal ions. Synthetic modification at the C[4] methylene bridge allows for the design of bis-C[4]s that, depending on the linker employed, can be used to either dictate which clusters can be formed or direct the assembly of a new metal-organic polyhedron (MOP). The assembly resulting from the latter approach displays thermal stability and uptake of N2 or H2 gas, confirming that this is a viable route to the synthesis of new, functional supramolecular architectures.
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Affiliation(s)
- Marco Coletta
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK
| | - Ross McLellan
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK
| | - Paul Murphy
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK
| | - Bernhard T Leube
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK
| | - Sergio Sanz
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Rob Clowes
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Kevin J Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 947240, USA
| | - Simon J Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 947240, USA
| | - Andrew I Cooper
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Martin J Paterson
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Scott J Dalgarno
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS, UK.
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12
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Coletta M, McLellan R, Waddington A, Sanz S, Gagnon KJ, Teat SJ, Brechin EK, Dalgarno SJ. Core expansion of bis-calix[4]arene-supported clusters. Chem Commun (Camb) 2016; 52:14246-14249. [DOI: 10.1039/c6cc08059f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stoichiometric control allows for remarkable expansion of the cores of two known bis-calix[4]arene-supported clusters, with concomitant changes to the magnetic properties.
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Affiliation(s)
- Marco Coletta
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - Ross McLellan
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - Amy Waddington
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - Sergio Sanz
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Kevin J. Gagnon
- Station 11.3.1
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Simon J. Teat
- Station 11.3.1
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Euan K. Brechin
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
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13
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Guzmán-Percástegui E, Vonlanthen M, Quiroz-García B, Flores-Alamo M, Rivera E, Castillo I. Supramolecular fluorescence enhancement via coordination-driven self-assembly in bis-picolylcalixarene blue-emitting M2L2Xn macrocycles. Dalton Trans 2015; 44:15966-75. [DOI: 10.1039/c5dt02058a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Photoactive macrocycles are obtained through coordination-driven self-assembly between calixarene L and Zn2+, Pd2+, Ag+, and Cd2+. Blue emission enhancement of L is observed upon assembly. M2L2Xn act as turn-off sensors for picric acid.
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Affiliation(s)
- Edmundo Guzmán-Percástegui
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Mireille Vonlanthen
- Instituto de Investigaciones en Materiales
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Beatriz Quiroz-García
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Marcos Flores-Alamo
- Facultad de Química
- Universidad Nacional Autónoma de México
- Ciudad Universitaria
- México D. F. 04510
- México
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
| | - Ivan Castillo
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- México D.F. 04510
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Husain A, Oliver CL. Novel mixed 1D–2D lanthanide coordination polymers based on p-sulfonatocalix[4]arene and 4,4′-bipyridine-N,N′-dioxide where p-sulfonatocalix[4]arene acts as a guest. CrystEngComm 2015. [DOI: 10.1039/c5ce00153f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel mixed 1D–2D coordination polymers based on 2D [Ln(4,4′-bpdo)2(NO3)2(H2O)2]+n sheets and 1D [Ln2(4,4′-bpdo)2(C4AS)(NO3)(H2O)9]n chains (Ln = Sm for 1 and Ln = Nd for 2) sustained by π⋯π interactions and lattice water facilitated hydrogen bonds have been established.
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Affiliation(s)
- Ahmad Husain
- Centre for Supramolecular Chemistry Research
- Department of Chemistry
- University of Cape Town
- Rondebosch, South Africa
| | - Clive L. Oliver
- Centre for Supramolecular Chemistry Research
- Department of Chemistry
- University of Cape Town
- Rondebosch, South Africa
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