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Netting Crystal Nuclei in Metal–Organic Framework Cavities (2024)
Journal Article
Braschinsky, A., Blundell, T. J., & Steed, J. W. (online). Netting Crystal Nuclei in Metal–Organic Framework Cavities. Small Structures, Article 2400300. https://doi.org/10.1002/sstr.202400300

Nucleation plays an important role in crystallization outcomes, but it is still poorly understood because it occurs on short timescales and small size scales. Consequently, nucleation mechanisms are still challenging to comprehend and predict. Gainin... Read More about Netting Crystal Nuclei in Metal–Organic Framework Cavities.

Crystalline Molecular Cleft Clathrates (2024)
Journal Article
Lynch, A. V., Blundell, T. J., & Steed, J. W. (2024). Crystalline Molecular Cleft Clathrates. Crystal Growth and Design, 24(17), 7271-7277. https://doi.org/10.1021/acs.cgd.4c00928

A rigid bis­(urea) molecular cleft (BU1) based on the cis diastereomer of a rigid isophorone-derived spacer forms solid-state inclusion complexes with a range of small molecular guests. Larger guests can be accommodated by a shift in orientation to o... Read More about Crystalline Molecular Cleft Clathrates.

Spin density waves and ground state helices in EuGa2.4Al1.6 (2024)
Journal Article
Littlehales, M. T., Moody, S. H., Bereciartua, P. J., Mayoh, D. A., Parkin, Z. B., Blundell, T. J., Unsworth, E., Francoual, S., Balakrishnan, G., Alba Venero, D., & Hatton, P. D. (2024). Spin density waves and ground state helices in EuGa2.4Al1.6. Physical Review Research, 6(3), Article L032015. https://doi.org/10.1103/physrevresearch.6.l032015

The Eu⁢(Ga1−𝑥⁢Al𝑥)4 series is composed of centrosymmetric structures which exhibit a wide range of rich topological phenomena, including some members hosting magnetic skyrmions. In this letter, we investigate the previously unreported intermediate co... Read More about Spin density waves and ground state helices in EuGa2.4Al1.6.

BEDT-TTF radical-cation salts with tris(oxalato)chromate and guest additives (2024)
Journal Article
Blundell, T. J., Ogar, J. O., Brannan, M. J., Rusbridge, E. K., Wallis, J. D., Akutsu, H., …Martin, L. (2024). BEDT-TTF radical-cation salts with tris(oxalato)chromate and guest additives. RSC Advances, 14(26), 18444-18452. https://doi.org/10.1039/d4ra03425b

The family of radical-cation salts β′′-(BEDT-TTF)4[(A)M3+(C2O4)3]·guest (M = Fe, Cr, Ga, Al, Co, Mn, Rh, Ru; A = K+, H3O+, NH4+) has produced superconductors, metals, semiconductors, and metal–insulators through introduction of different guest molecu... Read More about BEDT-TTF radical-cation salts with tris(oxalato)chromate and guest additives.

Introduction of new guest molecules into BEDT-TTF radical-cation salts with tris(oxalato)ferrate (2024)
Journal Article
Blundell, T. J., Rusbridge, E. K., Pemberton, R. E., Brannan, M. J., Morritt, A. L., Ogar, J. O., Wallis, J. D., Akutsu, H., Nakazawa, Y., Imajo, S., & Martin, L. (2024). Introduction of new guest molecules into BEDT-TTF radical-cation salts with tris(oxalato)ferrate. CrystEngComm, 26(14), 1962-1975. https://doi.org/10.1039/d4ce00099d

Radical-cation salts of formula β′′-(BEDT-TTF)4[(H3O)Fe(C2O4)3]·guest have produced a large number of superconductors and provided a route to introduce magnetism and chirality into the same multifunctional material. A relationship has been found in t... Read More about Introduction of new guest molecules into BEDT-TTF radical-cation salts with tris(oxalato)ferrate.

Quantitative Raman microscopy to describe structural organisation in hollow microcrystals built from silicon catecholate and amines (2023)
Journal Article
Volkov, V. V., Blundell, T. J., Argent, S., & Perry, C. C. (2023). Quantitative Raman microscopy to describe structural organisation in hollow microcrystals built from silicon catecholate and amines. Dalton Transactions, 52(21), 7249-7257. https://doi.org/10.1039/d3dt00856h

Macroscopic scale hollow microcrystals are a promising group of materials for gas and liquid uptake as well as sensing. In this contribution we describe the structure of hollow hexagonal cross-section crystals formulated as salts of a silicon catecho... Read More about Quantitative Raman microscopy to describe structural organisation in hollow microcrystals built from silicon catecholate and amines.

Slow magnetic relaxation in Fe(ii) m-terphenyl complexes (2022)
Journal Article
Valentine, A. J., Geer, A. M., Blundell, T. J., Tovey, W., Cliffe, M. J., Davies, E. S., …Kays, D. L. (2022). Slow magnetic relaxation in Fe(ii) m-terphenyl complexes. Dalton Transactions, 51(47), 18118-18126. https://doi.org/10.1039/d2dt03531f

Two-coordinate transition metal complexes are exciting candidates for single-molecule magnets (SMMs) because their highly axial coordination environments lead to sizeable magnetic anisotropy. We report a series of five structurally related two-coordi... Read More about Slow magnetic relaxation in Fe(ii) m-terphenyl complexes.

Molecular conductors from bis(ethylenedithio)tetrathiafulvalene with tris(oxalato)gallate and tris(oxalato)iridate (2022)
Journal Article
Blundell, T. J., Morritt, A. L., Rusbridge, E. K., Quibell, L., Oakes, J., Akutsu, H., …Martin, L. (2022). Molecular conductors from bis(ethylenedithio)tetrathiafulvalene with tris(oxalato)gallate and tris(oxalato)iridate. Materials Advances, 3(11), 4724-4735. https://doi.org/10.1039/d2ma00384h

We present the synthesis, crystal structures and conducting properties of six new BEDT-TTF radical-cation salts with the tris(oxalato)gallate or -iridate anion. The use of halobenzenes gives 4 : 1 β′′ metallic or superconducting salts with tris(oxala... Read More about Molecular conductors from bis(ethylenedithio)tetrathiafulvalene with tris(oxalato)gallate and tris(oxalato)iridate.

Enantiopure and racemic radical-cation salts of B(mandelate)2− and B(2-chloromandelate)2− anions with BEDT-TTF (2022)
Journal Article
Blundell, T. J., Lopez, J. R., Sneade, K., Wallis, J. D., Akutsu, H., Nakazawa, Y., …Martin, L. (2022). Enantiopure and racemic radical-cation salts of B(mandelate)2− and B(2-chloromandelate)2− anions with BEDT-TTF. Dalton Transactions, 51(12), 4843-4852. https://doi.org/10.1039/d2dt00024e

We report the first examples of radical-cation salts of BEDT-TTF with spiroborate anions [B(mandelate)2]− and [B(2-chloromandelate)2]−, synthesized from either enantiopure or racemic bidentate mandelate or chloromandelate ligands. In the salts prepar... Read More about Enantiopure and racemic radical-cation salts of B(mandelate)2− and B(2-chloromandelate)2− anions with BEDT-TTF.

Exceptionally high temperature spin crossover in amide-functionalised 2,6-bis(pyrazol-1-yl)pyridine iron(ii) complex revealed by variable temperature Raman spectroscopy and single crystal X-ray diffraction (2021)
Journal Article
Attwood, M., Akutsu, H., Martin, L., Blundell, T. J., Le Maguere, P., & Turner, S. S. (2021). Exceptionally high temperature spin crossover in amide-functionalised 2,6-bis(pyrazol-1-yl)pyridine iron(ii) complex revealed by variable temperature Raman spectroscopy and single crystal X-ray diffraction. Dalton Transactions, 50(34), 11843-11851. https://doi.org/10.1039/d1dt01743h

The synthesis of a novel amide-functionalised 2,6-bis(pyrazol-1-yl)pyridine-4-carboxamide ligand (bppCONH2) is described. The complex salts [Fe(bppCONH2)2](BF4)2 and [Fe(bppCONH2)2](ClO4)2 were synthesised and characterised by SQUID magnetometry, dif... Read More about Exceptionally high temperature spin crossover in amide-functionalised 2,6-bis(pyrazol-1-yl)pyridine iron(ii) complex revealed by variable temperature Raman spectroscopy and single crystal X-ray diffraction.

First Molecular Superconductor with the Tris(Oxalato)Aluminate Anion, β″-(BEDT-TTF)4(H3O)Al(C2O4)3·C6H5Br, and Isostructural Tris(Oxalato)Cobaltate and Tris(Oxalato)Ruthenate Radical Cation Salts (2021)
Journal Article
Blundell, T., Brannan, M., Mburu-Newman, J., Akutsu, H., Nakazawa, Y., Imajo, S., & Martin, L. (2021). First Molecular Superconductor with the Tris(Oxalato)Aluminate Anion, β″-(BEDT-TTF)4(H3O)Al(C2O4)3·C6H5Br, and Isostructural Tris(Oxalato)Cobaltate and Tris(Oxalato)Ruthenate Radical Cation Salts. Magnetochemistry, 7(7), Article 90. https://doi.org/10.3390/magnetochemistry7070090

Peter Day’s research group reported the first molecular superconductor containing paramagnetic metal ions in 1995, β″-(BEDT-TTF)4(H3O)Fe(C2O4)3·C6H5CN. Subsequent research has produced a multitude of BEDT-TTF-tris(oxalato)metallate salts with a varie... Read More about First Molecular Superconductor with the Tris(Oxalato)Aluminate Anion, β″-(BEDT-TTF)4(H3O)Al(C2O4)3·C6H5Br, and Isostructural Tris(Oxalato)Cobaltate and Tris(Oxalato)Ruthenate Radical Cation Salts.

Chiral metal down to 4.2 K - a BDH-TTP radical-cation salt with spiroboronate anion B(2-chloromandelate)2− (2021)
Journal Article
Blundell, T. J., Brannan, M., Nishimoto, H., Kadoya, T., Yamada, J., Akutsu, H., …Martin, L. (2021). Chiral metal down to 4.2 K - a BDH-TTP radical-cation salt with spiroboronate anion B(2-chloromandelate)2−. Chemical Communications, 57(44), 5406-5409. https://doi.org/10.1039/d1cc01441b

We report the first example of a chiral BDH-TTP radical-cation salt. Chirality is induced in the structure via the use of a chiral spirobor-onate anion where three stereocentres are present, one on each chiral ligand and one on the boron centre. Desp... Read More about Chiral metal down to 4.2 K - a BDH-TTP radical-cation salt with spiroboronate anion B(2-chloromandelate)2−.

Synthesis and structures of polyiodide radical cation salts of donors combining tetrathiafulvalene with multiple thiophene or oligo-thiophene substituents (2020)
Journal Article
Short, J., Blundell, T. J., Yang, S., Sahin, O., Shakespeare, Y., Smith, E. L., …Martin, L. (2020). Synthesis and structures of polyiodide radical cation salts of donors combining tetrathiafulvalene with multiple thiophene or oligo-thiophene substituents. CrystEngComm, 22(40), 6632-6644. https://doi.org/10.1039/d0ce00954g

A series of TTF and EDT-TTF derived donors bearing thiophene, bithiophene and terthiophene side chains is described, from which a group of six radical cation salts with polyiodide ions were formed and structurally characterised. Typically, they conta... Read More about Synthesis and structures of polyiodide radical cation salts of donors combining tetrathiafulvalene with multiple thiophene or oligo-thiophene substituents.

Chiral molecular conductor with an insulator–metal transition close to room temperature (2020)
Journal Article
Short, J. I., Blundell, T. J., Krivickas, S. J., Yang, S., Wallis, J. D., Akutsu, H., …Martin, L. (2020). Chiral molecular conductor with an insulator–metal transition close to room temperature. Chemical Communications, 56(66), 9497-9500. https://doi.org/10.1039/d0cc04094k

Materials exhibiting both chirality and conductivity do not exist in nature and very few examples have been synthesised. We report here the synthesis of a chiral molecular metal which remains metallic down to at least 4.2 K. This material also exhibi... Read More about Chiral molecular conductor with an insulator–metal transition close to room temperature.

A transition metal–gallium cluster formedviainsertion of “GaI” (2020)
Journal Article
Blundell, T. J., Taylor, L. J., Valentine, A. J., Lewis, W., Blake, A. J., McMaster, J., & Kays, D. L. (2020). A transition metal–gallium cluster formedviainsertion of “GaI”. Chemical Communications, 56(58), 8139-8142. https://doi.org/10.1039/d0cc03559a

The reaction between a two-coordinate Co(II) diaryl complex and “GaI” affords 2,6-Pmp2C6H3CoGa3I5, in a new geometry for a heavier group 13-transition metal cluster. Experimental and computational investigations show that this compound is best descri... Read More about A transition metal–gallium cluster formedviainsertion of “GaI”.

2D Molecular Superconductor to Insulator Transition in the β′′-(BEDT-TTF)2[(H2O)(NH4)2M(C2O4)3]·18-crown-6 Series (M = Rh, Cr, Ru, Ir) (2019)
Journal Article
Morritt, A. L., Lopez, J. R., Blundell, T. J., Canadell, E., Akutsu, H., Nakazawa, Y., …Martin, L. (2019). 2D Molecular Superconductor to Insulator Transition in the β′′-(BEDT-TTF)2[(H2O)(NH4)2M(C2O4)3]·18-crown-6 Series (M = Rh, Cr, Ru, Ir). Inorganic Chemistry, 58(16), 10656-10664. https://doi.org/10.1021/acs.inorgchem.9b00292

The series of salts β′′-(BEDT-TTF)2[(H2O)(NH4)2M(C2O4)3]·18-crown-6 show ambient-pressure superconductivity when M = Cr, Rh. Evidence indicates that the previously reported Cr and Rh salts show a bulk Berezinski–Kosterlitz–Thouless superconducting tr... Read More about 2D Molecular Superconductor to Insulator Transition in the β′′-(BEDT-TTF)2[(H2O)(NH4)2M(C2O4)3]·18-crown-6 Series (M = Rh, Cr, Ru, Ir).

Azamacrocycles and tertiary amines can be used to form size tuneable hollow structures or monodisperse oxide nanoparticles depending on the ‘M’ source (2019)
Journal Article
Tilburey, G. E., Blundell, T. J., Argent, S. P., & Perry, C. C. (2019). Azamacrocycles and tertiary amines can be used to form size tuneable hollow structures or monodisperse oxide nanoparticles depending on the ‘M’ source. Dalton Transactions, 48(41), 15470-15479. https://doi.org/10.1039/c9dt02080b

We show that the azamacrocycle ‘cyclam’ (1,4,8,11-tetraazacyclodecane) in conjunction with a silicon catecholate ion generates novel hollow tetragonal tube-like crystalline materials [(C6H4O2)3Si][C10H26N4]·H2O, whose dimensions can be tuned accordin... Read More about Azamacrocycles and tertiary amines can be used to form size tuneable hollow structures or monodisperse oxide nanoparticles depending on the ‘M’ source.

Selective reduction and homologation of carbon monoxide by organometallic iron complexes (2018)
Journal Article
Sharpe, H. R., Geer, A. M., Taylor, L. J., Gridley, B. M., Blundell, T. J., Blake, A. J., …Kays, D. L. (2018). Selective reduction and homologation of carbon monoxide by organometallic iron complexes. Nature Communications, 9(1), Article 3757. https://doi.org/10.1038/s41467-018-06242-w

Carbon monoxide is a key C1 feedstock for the industrial production of hydrocarbons, where it is used to make millions of tonnes of chemicals, fuels, and solvents per annum. Many transition metal complexes can coordinate CO, but the formation of new... Read More about Selective reduction and homologation of carbon monoxide by organometallic iron complexes.

STERICALLY CROWDED σ‐ AND π‐BONDED METAL ARYL COMPLEXES (2018)
Book Chapter
Martinez, G. E., Killion, J. A., Jackson, B. J., Fout, A. R., Petel, B. E., Matson, E. M., …Ellis, J. E. (2018). STERICALLY CROWDED σ‐ AND π‐BONDED METAL ARYL COMPLEXES. In P. P. Power (Ed.), Inorganic Syntheses, Volume 37 (47-83). Wiley. https://doi.org/10.1002/9781119477822.ch4

Homoleptic complexes in which alkyl or aryl groups are η1-bound to a transition metal form one of the cornerstones of organometallic chemistry. For example, most transition metals form both neutral and anionic complexes with σ-bonding aryl ligands. T... Read More about STERICALLY CROWDED σ‐ AND π‐BONDED METAL ARYL COMPLEXES.