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Browsing University of Hertfordshire by Author "Morris, Graeme"
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Detection of Nitroaromatic and Peroxide-Based Explosives with Amine- and Phosphine-Functionalized Diketopyrrolopyrroles
Warzecha, Monika; Morris, Graeme; McLean, Andrew J.; Calvo-Castro, Jesus; McHugh, Callum J. (2023-06-14)Effective strategies for the detection and identification of explosives are highly desirable. Herein, we illustrate the efficient optoelectronic detection of nitroaromatic and peroxide-based explosives using amine- and ... -
Development of a Neutral Diketopyrrolopyrrole Phosphine Oxide for the Selective Bioimaging of Mitochondria at the Nanomolar Level
Abelha, Thais Fedatto; Morris, Graeme; Lima, Sandro; Andrade, Luis; McLean, Andrew J.; Alexander, Cameron; Calvo-Castro, Jesus; McHugh, Callum J. (2020-03-09)Development of novel bioimaging materials that exhibit organelle specific accumulation continues to be at the forefront of research interests and efforts. Among the various subcellular organelles, mitochondria, which are ... -
Effects of fluorine substitution on the intermolecular interactions, energetics and packing behaviour of N-benzyl substituted diketopyrrolopyrroles
Calvo-Castro, Jesus; Morris, Graeme; Kennedy, Alan R.; McHugh, Callum J. (2016-04-06)Rationalizing the effects of molecular substitution in π-conjugated organic materials arising from well-defined intermolecular interactions, which can influence the formation of predefined packing motifs and control the ... -
Fluorine Directed Two-Dimensional Cruciform π−π Stacking in Diketopyrrolopyrroles
Calvo-Castro, Jesus; McHugh, Callum J.; Morris, Graeme; Kennedy, Alan R. (2016-07-18)Enhanced bulk dimensionality in organic materials employed in optoelectronic devices is desirable and can overcome fabrication issues related to structural defects and grain boundaries. Herein, we report a novel fluorinated ... -
Intermolecular interactions and energetics in the crystalline π–π stacks and associated model dimer systems of asymmetric halogenated diketopyrrolopyrroles
Calvo-Castro, Jesus; Warzecha, Monika; Oswald, I.D.H.; Kennedy, Alan R.; Morris, Graeme; McLean, Andrew J.; McHugh, Callum J. (2016-03-02)Four novel structurally analogous asymmetric, halogenated N-benzyl substituted diketopyrrolopyrroles (DPP) have been synthesized, and their crystal structures obtained. All four crystal structures exhibit π–π stacks with ... -
Twist and shout: a surprising synergy between aryl and N-substituents defines the computed charge transport properties in a series of crystalline diketopyrrolopyrroles
Calvo-Castro, Jesus; McHugh, Callum J.; Kennedy, Alan R.; Morris, Graeme; Maczka, Sebastian; Thomson, Connor (2016-11-22)The influence of systematic variation of aryl and N-substitution on predicted charge transport behaviour in a series of crystalline diketopyrrolopyrroles is evaluated. A correct combination of substituents is revealed to ...