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Constable EC, Zhang G, Housecroft CE, Neuburger M, Zampese JA. Diastereoselective Assembly of Helicates Incorporating a Hexadentate Chiral Scaffold. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000206] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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202
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Clemente-León M, Coronado E, López-Muñoz A, Repetto D, Ito T, Konya T, Yamase T, Constable EC, Housecroft CE, Doyle K, Graber S. Dual-emissive photoluminescent Langmuir-Blodgett films of decatungstoeuropate and an amphiphilic iridium complex. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:1316-1324. [PMID: 19754063 DOI: 10.1021/la902513z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Langmuir monolayers and Langmuir-Blodgett (LB) films of the decatungstoeuropate [Eu(W(5)O(18))(2)](9-) (EuW(10)) and the amphiphilic Ir complex 1 have been successfully fabricated by using the adsorption properties of the EuW(10) polyanion dissolved in the aqueous subphase onto a positively charged 1 monolayer at the air-water interface. The compression isotherms and Brewster angle microscopy (BAM) of monolayers of 1 on pure water (1 monolayer) and on a subphase containing 10(-6) M EuW(10) and 10(-3) M NaCl (1/EuW(10) monolayer) have been studied. Infrared and UV-vis spectroscopy of the transferred LB films indicate that EuW(10) and 1 molecules are incorporated within these LB films. X-ray reflectivity (SXR) and atomic force microscopy (AFM) experiments indicate that LB films of 1 present a heterogeneous morphology while 1/EuW(10) films show a flatter and more homogeneous surface as well as a layered structure with a periodicity of 4.1 nm. Mixed monolayers of 1 and DODA (dimethyldioctadecylammonium bromide) have been prepared with EuW(10) polyanions in the subphase to control the concentration of 1 and EuW(10) polyanions within the LB films. AFM and SXR experiments with the transferred LB films show that the dilution of 1 with DODA improves the layered structure. The luminescence of 1 is partially quenched by EuW(10) in the 1/EuW(10) LB films, while emission from EuW(10) is not detected. On the other hand, emission from both entities is preserved in the LB films prepared from mixed DODA/1 monolayers, in which the red and yellow emissions arise independently from EuW(10) and 1, respectively. The different DODA:1 ratios lead to changes in the emission color. Therefore, they constitute a promising color-tunable luminescent material.
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Constable EC, Harris K, Housecroft CE, Neuburger M, Zampese JA. Turning {M(tpy)2}n+ embraces and CH⋯π interactions on and off in homoleptic cobalt(ii) and cobalt(iii) bis(2,2′:6′,2″-terpyridine) complexes. CrystEngComm 2010. [DOI: 10.1039/c002834g] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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204
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Constable EC, Housecroft CE, Neuburger M, Rösel P. Clicking hard-core sugar balls. Chem Commun (Camb) 2010; 46:1628-30. [DOI: 10.1039/b924103e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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205
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Constable EC, Zhang G, Housecroft CE, Zampese JA. Amalgamating metalloligands with coordination networks. Dalton Trans 2010; 39:1941-7. [DOI: 10.1039/b924475a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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206
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Constable EC, Housecroft CE, Neuburger M, Price JR, Zampese JA. Redox addressable ligands in copper(i) coordination chemistry: thione and oligosulfide-bridged 6-methyl-2,2′-bipyridines. CrystEngComm 2010. [DOI: 10.1039/c002827d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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207
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Constable EC, Zhang G, Housecroft CE, Neuburger M, Zampese JA. Host–guest chemistry of a chiral Schiff base copper(ii) complex: can chiral information be transferred to the guest cation? CrystEngComm 2010. [DOI: 10.1039/b922929a] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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208
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Constable EC, Zhang G, Housecroft CE, Neuburger M, Zampese JA. π-Stacking and hydrogen bonding direct diastereoselectivity in one-pot syntheses of octahedral iron(ii) complexes. Chem Commun (Camb) 2010; 46:3077-9. [DOI: 10.1039/b927071j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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209
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Brauchli SY, Constable EC, Harris K, Häussinger D, Housecroft CE, Rösel PJ, Zampese JA. Towards catenanes using π-stacking interactions and their influence on the spin-state of a bis(2,2′:6′,2″-terpyridine)iron(ii) domain. Dalton Trans 2010; 39:10739-48. [DOI: 10.1039/c0dt00743a] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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210
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Constable EC, Zhang G, Housecroft CE, Neuburger M, Zampese JA. Sheet, ladder or chain? Small substituents in 4′-phenyl-4,2′:6′,4″-terpyridines control dimensionality in cadmium(ii) coordination polymers. CrystEngComm 2010. [DOI: 10.1039/c0ce00175a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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211
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Constable EC, Housecroft CE, Neuburger M, Price JR, Zampese JA. Tuning Coordination Environments Through Ligand Redox Chemistry: the Thiol - Disulfide Reaction. Aust J Chem 2010. [DOI: 10.1071/ch10105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Oxidative coupling of 6-(pyridin-2-yl)pyridine-2(1H)-thione yields 1,2-bis(2,2′-bipyridin-6-yl)disulfide (4), which can act as a bis(chelate) to a single zinc(ii) centre. The effects on the solid-state structure of introducing a methyl substituent into each 6-position of 4 have been examined. Ligand 4 functions as a bridging ligand in [Cu2(μ-4)(μ-6)]4+ in which ligand 6 is 1,2-bis(2,2′:6′,2″-terpyridin-4′-yl)disulfide; [Cu2(μ-4)(μ-6)]4+ self-assembles from the components according to the preference shown by copper(ii) for a five-coordinate {Cu(bpy)(tpy)} environment. Reaction of 4 with [Cu(NCMe)4][PF6] leads to a product, tentatively formulated as {[Cu(4)][PF6]}n, which, in air, undergoes oxidation of both copper and ligand to yield [Cu(5)2] (H5 = 2,2′-bipyridine-6-sulfonic acid), the solid state structure of which is presented.
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Constable EC, Redondo AH, Housecroft CE, Neuburger M. Aldehyde-decorated 2,2′-bipyridine and 2,2′:6′,2″-terpyridine ruthenium(II) complexes: Convenient scaffolds for supramolecular chemistry. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2009.10.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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213
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Constable EC, Housecroft CE, Neuburger M, Price J, Wolf A, Zampese JA. A strategy for controlling charge and conformation in 2,2′-bipyridine complexes for use in photonic applications. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2009.10.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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214
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Bozic-Weber B, Constable EC, Housecroft CE, Neuburger M, Price JR. Sticky complexes: carboxylic acid-functionalized N-phenylpyridin-2-ylmethanimine ligands as anchoring domains for copper and ruthenium dye-sensitized solar cells. Dalton Trans 2010; 39:3585-94. [DOI: 10.1039/b925623g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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215
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Constable EC, Zhang G, Housecroft CE, Zampese JA. Mix and match: templating chiral Schiff base ligands to suit the needs of the metal ion. Dalton Trans 2010; 39:5332-40. [DOI: 10.1039/c001145b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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216
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Constable EC, Zhang G, Housecroft CE, Zampese JA. Same head, different scaffold: a plethora of structural motifs assembled from silver(i) and ditopic 2,2′-bipyridine ligands. CrystEngComm 2010. [DOI: 10.1039/c0ce00120a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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217
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Constable EC, Housecroft CE, Price JR, Zampese JA. When five are six: the myth of five-coordinate copper(ii) in supramolecular chemistry. CrystEngComm 2010. [DOI: 10.1039/c0ce00019a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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218
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Constable EC, Zhang G, Housecroft CE, Neuburger M, Zampese JA. Assembling and dissembling zinc-containing coordination polymers of 4′-phenyl-4,2′:6′,4″-terpyridine. CrystEngComm 2010. [DOI: 10.1039/b926598h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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219
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Constable EC, Decurtins S, Housecroft CE, Keene TD, Palivan CG, Price JR, Zampese JA. Half a grid is better than no grid: competition between 2,2′:6′,2′′-terpyridine and 3,6-di(pyrid-2-yl)pyridazine for copper(ii). Dalton Trans 2010; 39:2337-43. [DOI: 10.1039/b923729a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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220
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Constable EC, Zhang G, Coronado E, Housecroft CE, Neuburger M. Not just size and shape: spherically symmetrical d5 and d10 metal ions give different coordination nets with 4,2′:6′,4″-terpyridines. CrystEngComm 2010. [DOI: 10.1039/b926597j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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221
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Constable EC, Housecroft CE, Kocik MK, Neuburger M, Schaffner S, Zampese JA. Structural and Photophysical Properties of (Phosphane)gold(I)-Decorated 4,4′-Diethynyl-2,2′-bipyridine Ligands. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900743] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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222
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Beves JE, Constable EC, Housecroft CE, Neuburger M, Schaffner S. Ditopic, flexible hydrazone-based building blocks with pendant 2,2′:6′,2′′-terpyridine metal-binding domains. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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223
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Rendondo AH, Constable EC, Housecroft CE. Towards Sustainable Dyes for Dye-Sensitized Solar Cells. Chimia (Aarau) 2009. [DOI: 10.2533/chimia.2009.205] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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224
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Boudebous A, Constable EC, Housecroft CE, Neuburger M, Schaffner S, Listorti A, Sabatini C, Barigelletti F. Preparation and photophysical studies of copper(I) and ruthenium(II) complexes of 4,4′-bis(3,5-dimethoxyphenyl)-6,6′-dimethyl-2,2′-bipyridine. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.08.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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225
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Silvi S, Constable EC, Housecroft CE, Beves JE, Dunphy EL, Tomasulo M, Raymo FM, Credi A. All-optical integrated logic operations based on chemical communication between molecular switches. Chemistry 2009; 15:178-85. [PMID: 19021180 DOI: 10.1002/chem.200801645] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Molecular logic gates process physical or chemical "inputs" to generate "outputs" based on a set of logical operators. We report the design and operation of a chemical ensemble in solution that behaves as integrated AND, OR, and XNOR gates with optical input and output signals. The ensemble is composed of a reversible merocyanine-type photoacid and a ruthenium polypyridine complex that functions as a pH-controlled three-state luminescent switch. The light-triggered release of protons from the photoacid is used to control the state of the transition-metal complex. Therefore, the two molecular switching devices communicate with one another through the exchange of ionic signals. By means of such a double (optical-chemical-optical) signal-transduction mechanism, inputs of violet light modulate a luminescence output in the red/far-red region of the visible spectrum. Nondestructive reading is guaranteed because the green light used for excitation in the photoluminescence experiments does not affect the state of the gate. The reset is thermally driven and, thus, does not involve the addition of chemicals and accumulation of byproducts. Owing to its reversibility and stability, this molecular device can afford many cycles of digital operation.
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