ORCID Profile
0000-0001-7809-0315
Current Organisation
University of St Andrews
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Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7DT01223C
Abstract: CPO-27-M (M = Co, Mg, Ni, Zn) metal–organic frameworks have been successfully synthesized at temperatures down to −78 °C in a range of solvent systems and their crystallinity and morphology analyzed by powder X-ray diffraction and scanning electron microscopy.
Publisher: American Chemical Society (ACS)
Date: 20-02-2019
DOI: 10.1021/JACS.9B00643
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.SSNMR.2019.05.005
Abstract: NMR spectroscopy of paramagnetic materials (pNMR) has the potential to provide great structural insight, but many challenges remain in interpreting the spectra in detail. This work presents a study of a series of structurally analogous metal-organic frameworks (MOFs) based on 5-substituted isophthalate linkers and Cu(II) paddlewheel dimers, of interest owing to their "crumple zone" structural rearrangement on dehydration/rehydration.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CE00098D
Abstract: Single crystal CPO-27-Mg, -Zn and its structural isomer UTSA-74 have been prepared through use of acid modulators salicylic acid and benzoic acid, respectively.
Publisher: Elsevier BV
Date: 11-2015
Publisher: Elsevier BV
Date: 03-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1MA00335F
Abstract: A four step mechanism for the disassembly and organisation stages of the ADOR process was determined using in situ flow pair distribution function.
Publisher: Elsevier BV
Date: 10-2016
Publisher: MDPI AG
Date: 24-12-2017
DOI: 10.3390/CRYST8010006
Publisher: American Chemical Society (ACS)
Date: 07-09-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA04320E
Abstract: A study into the disassembly and organisation steps of the ADOR process has been undertaken through in situ Pair Distribution Function (PDF) analysis.
Publisher: Wiley
Date: 30-10-2015
Abstract: The ionothermal synthesis, structure, and magnetic susceptibility of a novel inorganic–organic hybrid material, imidazolium vanadium(III,IV) oxyfluoride [C 3 H 5 N 2 ][V 9 O 6 F 24 (H 2 O) 2 ] (ImVOF) are presented. The structure consists of inorganic vanadium oxyfluoride slabs with kagome layers of V 4+ S = ions separated by a mixed valence layer. These inorganic slabs are intercalated with imidazolium cations. Quinuclidinium (Q) and pyrazinium (Pyz) cations can also be incorporated into the hybrid structure type to give QVOF and PyzVOF analogues, respectively. The highly frustrated topology of the inorganic slabs, along with the quantum nature of the magnetism associated with V 4+ , means that these materials are excellent candidates to host exotic magnetic ground states, such as the highly sought quantum spin liquid. Magnetic susceptibility measurements of all s les suggest an absence of conventional long‐range magnetic order down to 2 K despite considerable antiferromagnetic exchange.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5DT02924D
Abstract: Four different coordination polymers were prepared by reaction of Zn(OAc) 2 and 5-methoxy isophthalic acid using various aqueous/aqueous alcohol solvent systems.
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3DT52579A
Abstract: A single-crystal to single-crystal transformable coordination polymer compound was hydrothermally synthesized. The structural rearrangement is induced by selecting a ligand that contains both strong and weaker coordinating groups. Both hydrated and dehydrated structures were determined by single crystal X-ray analysis.
Publisher: Royal Society of Chemistry (RSC)
Date: 17-09-2014
DOI: 10.1039/C4CP03298E
Abstract: An experimental study of Xe and Kr adsorption in metal-organic frameworks CPO-27-Ni, CPO-27-Mg, and ZIF-8 was carried out. In situ synchrotron X-ray powder diffraction experiments allowed precise determination of the adsorption sites and sequence of their filling with increasing of gas pressure at different temperatures. Structural investigations were used for interpretation of gas adsorption measurements.
Publisher: Springer Science and Business Media LLC
Date: 25-01-2019
DOI: 10.1038/S41596-018-0114-6
Abstract: High-silica zeolites, some of the most important and widely used catalysts in industry, have potential for application across a wide range of traditional and emerging technologies. The many structural topologies of zeolites have a variety of potential uses, so a strong drive to create new zeolites exists. Here, we present a protocol, the assembly-disassembly-organization-reassembly (ADOR) process, for a relatively new method of preparing these important solids. It allows the synthesis of new high-silica zeolites (Si/Al >1,000), whose synthesis is considered infeasible with traditional (solvothermal) methods, offering new topologies that may find novel applications. We show how to identify the optimal conditions (e.g., duration of reaction, temperature, acidity) for ADOR, which is a complex process with different possible outcomes. Following the protocol will allow researchers to identify the different products that are possible from a reaction without recourse to repetitive and time-consuming trial and error. In developing the protocol, germanium-containing UTL zeolites were subjected to hydrolysis conditions using both water and hydrochloric acid as media, which provides an understanding of the effects of temperature and pH on the disassembly (D) and organization (O) steps of the process that define the potential products. S les were taken from the ongoing reaction periodically over a minimum of 8 h, and each s le was analyzed using powder X-ray diffraction to yield a time course for the reaction at each set of conditions selected s les were analyzed using transmission electron microscopy and solid-state NMR spectroscopy.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA05910H
Abstract: Physisorption drives structural change leading to thermally stable CO chemisorption.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CE02091C
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3SC00904A
Abstract: Application of pressure induces reactivity of pore-bound methanol with the secondary building unit of the metal–organic framework GUF-1(Sc), substituting coordinated bridging hydroxide ligands for bridging methoxides, in single crystals and in bulk.
Publisher: Springer Science and Business Media LLC
Date: 13-08-2018
DOI: 10.1038/S41557-018-0104-X
Abstract: Highly porous metal-organic frameworks (MOFs), which have undergone exciting developments over the past few decades, show promise for a wide range of applications. However, many studies indicate that they suffer from significant stability issues, especially with respect to their interactions with water, which severely limits their practical potential. Here we demonstrate how the presence of 'sacrificial' bonds in the coordination environment of its metal centres (referred to as hemilability) endows a dehydrated copper-based MOF with good hydrolytic stability. On exposure to water, in contrast to the indiscriminate breaking of coordination bonds that typically results in structure degradation, it is non-structural weak interactions between the MOF's copper paddlewheel clusters that are broken and the framework recovers its as-synthesized, hydrated structure. This MOF retained its structural integrity even after contact with water for one year, whereas HKUST-1, a compositionally similar material that lacks these sacrificial bonds, loses its crystallinity in less than a day under the same conditions.
Publisher: Wiley
Date: 23-05-2022
Abstract: Porosity and surface area analysis play a prominent role in modern materials science. At the heart of this sits the Brunauer–Emmett–Teller (BET) theory, which has been a remarkably successful contribution to the field of materials science. The BET method was developed in the 1930s for open surfaces but is now the most widely used metric for the estimation of surface areas of micro‐ and mesoporous materials. Despite its widespread use, the calculation of BET surface areas causes a spread in reported areas, resulting in reproducibility problems in both academia and industry. To prove this, for this analysis, 18 already‐measured raw adsorption isotherms were provided to sixty‐one labs, who were asked to calculate the corresponding BET areas. This round‐robin exercise resulted in a wide range of values. Here, the reproducibility of BET area determination from identical isotherms is demonstrated to be a largely ignored issue, raising critical concerns over the reliability of reported BET areas. To solve this major issue, a new computational approach to accurately and systematically determine the BET area of nanoporous materials is developed. The software, called “BET surface identification” (BETSI), expands on the well‐known Rouquerol criteria and makes an unambiguous BET area assignment possible.
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3DT52385C
Abstract: There are only limited reports on vanadium(iv) oxyfluorides (VOFs) with extended crystal structures. Here we expand and enrich the list of existing VOFs with a series of 14 new materials "VOF-n (n = 1-14)" prepared using ionothermal and solvothermal synthesis methods. All of these materials arise from the condensation of a dimeric structural motif. These VOFs can be classified into three groups depending on their key structural features layer structures: VOF-1"[HN2C7H6][V2O2F5]", VOF-2"[HN2C4H4][V2O2F5]", VOF-3"[HN2C3H4][V2O2F5]" and VOF-4"V2(N2C4H4)O2F4", ladder like structures: VOF-5"[NH4(HN2C3H4)][V2O2F6]", VOF-6"[K(HN2C3H4)][V2O2F6]", VOF-7"[HNH2CH2CH3][VOF3]", VOF-8"[HN2C7H6][VOF3]", VOF-9"[H2N2C4H6][V2O2F6]", VOF-10"β-RbVOF3", VOF-11"α-KVOF3", VOF-12"β-KVOF3", VOF-13"[H2(NH2)2(CH2)2][V2O2F6]", and a chain structure: VOF-14"[H2N2C6H12][V2O2F7]". The crystal structures of VOF-n are presented, and their synthetic and structural relationships are discussed.
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Russell Morris.