| 1. |
- Amombo Noa, Francoise Mystere, 1988, et al.
(författare)
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A hexagon based Mn(ii) rod metal-organic framework - structure, SF 6 gas sorption, magnetism and electrochemistry
- 2023
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1364-548X .- 1359-7345. ; 59:15, s. 2106-2109
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Tidskriftsartikel (refereegranskat)abstract
- A manganese(ii) metal-organic framework based on the hexatopic hexakis(4-carboxyphenyl)benzene, cpb6−: [Mn3(cpb)(dmf)3], was solvothermally prepared showing a Langmuir area of 438 m2 g−1, rapid uptake of sulfur hexafluoride (SF6) as well as electrochemical and magnetic properties, while single crystal diffraction reveals an unusual rod-MOF topology.
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| 2. |
- Forero Saboya, Juan, 1992, et al.
(författare)
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Solvent-free lithium and sodium containing electrolytes based on pseudo-delocalized anions
- 2019
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Ingår i: Chemical Communications. - 1364-548X .- 1359-7345. ; 55:5, s. 632-635
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Tidskriftsartikel (refereegranskat)abstract
- Mixing the standard battery salt LiTFSI with various Li-salts of novel pseudo-delocalized organic anions [N(CH3)2((CH2)nSO3)((CH2)mSO3)]− (MMnm11), results in super-cooled solvent-free liquid electrolytes with glass transition temperatures of ca. 50 °C. Synthesis routes and full chemical characterisation of the new pseudo-delocalized anions are presented, as well as phase and thermal stabilities. The ion conductivities and electrochemical stabilities are evaluated towards lithium and sodium battery application.
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| 3. |
- Sahin, Cagla, et al.
(författare)
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Ion mobility-mass spectrometry shows stepwise protein unfolding under alkaline conditions
- 2021
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Ingår i: Chemical Communications. - : Royal Society of Chemistry. - 1359-7345 .- 1364-548X. ; 57:12, s. 1450-1453
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Tidskriftsartikel (refereegranskat)abstract
- Although native mass spectrometry is widely applied to monitor chemical or thermal protein denaturation, it is not clear to what extent it can inform about alkali-induced unfolding. Here, we probe the relationship between solution- and gas-phase structures of proteins under alkaline conditions. Native ion mobility-mass spectrometry reveals that globular proteins are destabilized rather than globally unfolded, which is supported by solution studies, providing detailed insights into alkali-induced unfolding events. Our results pave the way for new applications of MS to monitor structures and interactions of proteins at high pH.
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| 4. |
- Gray, Victor, 1988, et al.
(författare)
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Diaryl-substituted norbornadienes with red-shifted absorption for molecular solar thermal energy storage
- 2014
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1364-548X .- 1359-7345. ; 50:40, s. 5330-5332
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Tidskriftsartikel (refereegranskat)abstract
- Red-shifting the absorption of norbornadienes (NBDs), into the visible region, enables the photo-isomerization of NBDs to quadricyclanes (QCs) to be driven by sunlight. This is necessary in order to utilize the NBD-QC system for molecular solar thermal (MOST) energy storage. Reported here is a study on five diaryl-substituted norbornadienes. The introduced aryl-groups induce a significant red-shift of the UV/vis absorption spectrum of the norbornadienes, and device experiments using a solar-simulator set-up demonstrate the potential use of these compounds for MOST energy storage. © the Partner Organisations 2014.
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| 5. |
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| 6. |
- Wang, Linqin, et al.
(författare)
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Design and synthesis of dopant-free organic hole-transport materials for perovskite solar cells
- 2018
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Ingår i: Chemical Communications. - : ROYAL SOC CHEMISTRY. - 1359-7345 .- 1364-548X. ; 54:69, s. 9571-9574
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Tidskriftsartikel (refereegranskat)abstract
- Two novel dopant-free hole-transport materials (HTMs) with spiro[dibenzo[c,h]xanthene-7,9-fluorene] (SDBXF) skeletons were prepared via facile synthesis routes. A power conversion efficiency of 15.9% in perovskite solar cells is attained by using one HTM without dopants, which is much higher than undoped Spiro-OMeTAD-based devices (10.8%). The crystal structures of both new HTMs were systematically investigated to reveal the reasons behind such differences in performance and to indicate the design principles of more advanced HTMs.
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| 7. |
- Dang, Dongfeng, 1988, et al.
(författare)
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Fluorine substitution enhanced photovoltaic performance of a D-A 1-D-A2 copolymer
- 2013
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1364-548X .- 1359-7345. ; 49:81, s. 9335-9337
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Tidskriftsartikel (refereegranskat)abstract
- A new alternating donor-acceptor (D-A1-D-A2) copolymer containing two electron-deficient moieties, isoindigo and quinoxaline, was synthesized. The photovoltaic performance of this polymer could be improved by incorporating fluorine atoms into the quinoxaline units, resulting in an efficiency of 6.32%. This result highlights the attractive promise of D-A 1-D-A2 copolymers for high-performance bulk heterojunction solar cells. © 2013 The Royal Society of Chemistry.
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| 8. |
- Liu, Lin, et al.
(författare)
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Role of hydrophobic residues for the gaseous formation of helical motifs
- 2019
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; 55:35, s. 5147-5150
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Tidskriftsartikel (refereegranskat)abstract
- The secondary structure content of proteins and their complexes may change significantly on passing from aqueous solution to the gas phase (as in mass spectrometry experiments). In this work, we investigate the impact of hydrophobic residues on the formation of the secondary structure of a real protein complex in the gas phase. We focus on a well-studied protein complex, the amyloid- (1-40) dimer (2A). Molecular dynamics simulations reproduce the results of ion mobility-mass spectrometry experiments. In addition, a helix (not present in the solution) is identified involving (19)FFAED(23), consistent with infrared spectroscopy data on an A segment. Our simulations further point to the role of hydrophobic residues in the formation of helical motifs - hydrophobic sidechains shield helices from being approached by residues that carry hydrogen bond sites. In particular, two hydrophobic phenylalanine residues, F19 and F20, play an important role for the helix, which is induced in the gas phase in spite of the presence of two carboxyl-containing residues.
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| 9. |
- Dunås, Petter, 1990, et al.
(författare)
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Palladium-catalyzed stereoselective domino arylation-acylation: an entry to chiral tetrahydrofluorenone scaffolds
- 2021
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1364-548X .- 1359-7345. ; 57:53, s. 6518-6521
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Tidskriftsartikel (refereegranskat)abstract
- A palladium-catalyzed domino arylation-cyclization of biocatalytically derived cyclic 1,3-dienes is demonstrated. The reaction introduces a high degree of structural complexity in a single step, giving access to tricyclic tetrahydrofluorenones with full regio- and stereoselectivity. The transformation proceeds through a novel acylation-terminated Heck-type sequence, and quantum chemical calculations indicate that C-H activation is involved in the terminating acylation step.
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| 10. |
- Dyson, P J, et al.
(författare)
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Determination of hydrogen concentration in ionic liquids and the effect (or lack of) on rates of hydrogenation
- 2003
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Ingår i: Chemical Communications. - : Royal Society of Chemistry (RSC). - 1359-7345 .- 1364-548X. ; :19, s. 2418-2419
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Tidskriftsartikel (refereegranskat)abstract
- The solubility of hydrogen and the corresponding Henry coefficients for 11 ionic liquids have been determined in situ at 100 atm H(2) pressure and are much lower than expected; attempts to correlate the solubility of hydrogen in the ionic liquids with the rate of reaction for the hydrogenation of benzene to cyclohexane in these solvents have been made.
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