Browsing Chemistry (Scholarly Publications) by Title
Now showing items 247-266 of 875
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Ethynylphenyl-Derivatized Free Base Porphyrins: Anodic Oxidation Processes and Covalent Grafting onto Glassy Carbon Electrodes
(2020)In six of seven cases, direct anodic oxidation of the ethynyl group of an ethynylphenyl-derivatized free-base porphyrin gave modified glassy carbon electrodes in which the porphyrin was strongly surface-bound, most likely ... -
Evidence for the first oxidative addition of a transition metal into a digallane(4): Synthesis, structural characterisation and EPR studies of [Cp2ZrIII{Ga[N(Ar)C(H)]2}2][Li(THF)4], Ar = C6H3Pri2-2,6.
(2005)Treatment of “ZrCp2” with the digallane(4), [{Ga[N(Ar)C(H)]2}2], Ar = C6H3Pri2-2,6, in the presence of excess BunLi leads to the first example of a gallyl–Group 4 complex, [Cp2Zr{Ga[N(Ar)C(H)]2}2][Li(THF)4], via an ... -
Evidence for the formation of an intermediate complex in the direct metalation of tetra(4-bromophenyl)-porphyrin on the Cu(111) surface
(2011)A strong molecule?surface interaction between free-base-tetra- (4-bromophenyl)-porphyrin and Cu(111) results in a distortion of both the molecule and the underlying copper surface in the vicinity of the molecule. This ... -
Evolution of oxygen functionalities in graphene oxide and its impact on structure and exfoliation: An oxidation time based study
(2018)Control over oxygen functionalities is important for the realization of Graphene Oxide (GO) based applications. Evolution of oxygen functionalities with time of oxidation and its impact on GO structure, exfoliation and ... -
An EXAFS and HR-XANES Study of the Uranyl Peroxides [UO2(η2-O2)(H2O)2].nH2O (n = 0,2) and Uranyl (Oxy)hydroxide [(UO2)4O(OH)6].6H2O
(2014)The solid-sate structures of the two uranyl peroxides studtite, [UO 2 ( ? 2 -O 2 )(H 2 O) 2 ]?2H 2 O, and metastudtite [UO 2 ( ? 2 -O 2 )(H 2 O) 2 ] have been determined by U ? L 3 edge extended ... -
Excited state behaviour of substituted dipyridophenazine Cr(III) complexes in the presence of nucleic acids.
(2010)The photophysics and photochemistry of [Cr(phen)2(dppz)]3+ and its 11,12-substituted derivatives [Cr(phen)2(X2dppz)]3+ {X = Me or F} have been studied in the presence of purine nucleotides or DNA using steady state and ... -
Exercises in molecular gymnastics - Bending, stretching and twisting porphyrins. (invited feature article)
(2006)The functional versatility of tetrapyrroles as natural cofactors is related to their conformational flexibility where manipulation of the macrocycle conformation allows a fine-tuning of their physicochemical properties. ... -
Experimental and computational study of dopamine as an electrochemical probe of the surface nanostructure of graphitized N-doped carbon
(2018)N-doped carbon nanomaterials have received increased attention from electrochemists because of their applications in the metal-free electrocatalysis of important redox processes. In this work, a series of graphitized undoped ... -
Exploration of the reaction of potassium organotrifluoroborates with porphyrins
(2009)A general method that uses potassium organotrifluoroborates in the Suzuki?Miyaura cross-coupling reaction with ring-brominated porphyrins has been investigated. The reaction conditions tolerate various functional groups ... -
Exploring the relationship between structure and activity in BODIPYs designed for antimicrobial phototherapy
(2020)A synthetic strategy to BODIPY dyes is presented giving access to a range of new compounds relevant in the context of antimicrobial photodynamic therapy (aPDT). BODIPYs with the 8-(4-fluoro-3-nitrophenyl) and the ... -
Exploring the reversible host–guest chemistry of a crystalline octanuclear Ag(i) metallosupramolecular macrocycle formed from a simple pyrazinylpyridine ligand
(2018)Here we report the synthesis of two new 2-(2′-pyrazinyl)pyridine ligands, and explore their coordination chemistry with Cu(II) and Ag(I) ions, leading to the discovery of metallosupramolecular architectures of surprising ... -
Extending the family of Zn-based MOFs: synthetic approaches to chiral framework structures and MOFs with large pores and channels
(2012)Tri- and pentanuclear, kinetically stable SBUs were exploited for the preparation of the novel MOFs [Zn 3(BTEB) 2(DMF) 2] and (Me 2NH 2)[Zn 5(BTEB) 3(? 3-OH) 2(DMF) 2]. The applied synthetic approach results in topologies ... -
Extra lithium-ion storage capacity enabled by liquid-phase exfoliated indium selenide nanosheets conductive network
(2020)As a recent addition to the family of van der Waals layered crystals, indium selenide (InSe) possesses unique optoelectronic and photonic properties, enabling high-performance electronic devices for broad applications. ... -
Extroverted Confusion Linus Pauling, Melvin Calvin and Porphyrin Isomers
(2011)No other modern era chemist has influenced chemistry and molecular biology as much as Professor Linus Pauling (1901?1994) (Fig. 1).[1] In a career spanning seven decades he worked and made important contributions in all ... -
Fabrication and characterisation of photonic nanowires
(SPIE, 2008)In recent years the application of nano-porous templates, such as anodic alumina and PTFE, in the production of cylindrical nanostructures has been vast. In our work we used porous alumina membranes to produce luminescent ... -
A facile "bottom-up" approach to prepare free-standing nano-films based on manganese coordination clusters.
(2013)We present herein a novel method to prepare free-standing Dried Foam Films (DFFs) whereby individual polynuclear manganese complexes cover quantitatively the holes of micro-grids; the fabricated, homogeneous films have a ... -
Fast Hydrocarbon Oxidation by a High¿Valent Nickel¿Fluoride Complex
(2020)In the search for highly reactive oxidants we have identified high‐valent metal–fluorides as a potential potent oxidant. The high‐valent Ni–F complex [NiIII(F)(L)] (2, L=N,N′‐(2,6‐dimethylphenyl)‐2,6‐pyridinedicarboxamidate) ...