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Showing 25 to 36 of 684 entries
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Self-Inclusion Complexes Derived from Cyclodextrins: Synthesis and Characterization of 6(A),6(B)-Bis-O-[p-(allyloxy)phenyl]-Substituted beta-Cyclodextrins.

The Journal of organic chemistry

Chen Z, Bradshaw JS, Yi G, Pyo D, Black DR, Zimmerman SS, Lee ML, Tong W, D'Souza VT.
PMID: 11667876
J Org Chem. 1996 Dec 13;61(25):8949-8955. doi: 10.1021/jo960679i.

The syntheses, structures, and spectroscopic properties of 6(A),6(B)-bis-O-[p-(allyloxy)phenyl]-substituted beta-cyclodextrins have been investigated. Selective activation of the 6(A),6(B)-hydroxy groups was carried out by treating heptakis(2,3-di-O-methyl)-beta-cyclodextrin (1) with 2,4-dimethoxybenzene-1,5-disulfonyl chloride to give 6(A),6(B)-bissulfonate ester 2 in a yield of only 3%....

Compartmental Schiff-base ligands as selective double-loaded extractants for copper(II).

Chemical communications (Cambridge, England)

Black D, Blake AJ, Finn RL, Lindoy LF, Nezhadali A, Rougnaghi G, Tasker PA, Schröder M.
PMID: 12120064
Chem Commun (Camb). 2002 Feb 21;(4):340-1. doi: 10.1039/b109635b.

The Robson compartmental macrocyclic ligand derived from the condensation of derivatives of 2,6-diformylphenol and diamines has been prepared for the first time in its free ligand form; competitive three-phase transport and two-phase extraction studies confirm high double-loaded selectivity for...

Azatriquinanes: Synthesis, Structure, and Reactivity.

The Journal of organic chemistry

Hext NM, Hansen J, Blake AJ, Hibbs DE, Hursthouse MB, Shishkin OV, Mascal M.
PMID: 11672206
J Org Chem. 1998 Aug 21;63(17):6016-6020. doi: 10.1021/jo980788s.

Azatriquinane, a tricyclic amine with rigid, hemispherical topology, is synthesized in six steps from pyrrole. This first example of a [2.2.2]cyclazine can be oxidatively dimerized to a novel, highly strained heptacycle or oxidized with chlorine to give an azatriquinacene,...

Inorganic-organic interpenetrating frameworks: 4,4'-bipyridine N,N'-dioxide as a bridging hydrogen-bond acceptor.

Chemical communications (Cambridge, England)

Blake AJ, Brett MT, Champness NR, Khlobystov AN, Long DL, Wilson C, Schröder M.
PMID: 12240139
Chem Commun (Camb). 2001 Nov 07;(21):2258-9. doi: 10.1039/b106348k.

4,4'-Bipyridine N,N'-dioxide (L) acts as a hydrogen-bond acceptor in the compounds ([M(NO3)2(H2O)4].L2) (M = Co, Ni) to form doubly-interpenetrated framework materials with sixfold topological connectivity.

Helical templating of polyiodide networks at a binuclear metallo complex.

Chemical communications (Cambridge, England)

Horn CJ, Blake AJ, Champness NR, Garau A, Lippolis V, Wilson C, Schröder M.
PMID: 12613588
Chem Commun (Camb). 2003 Feb 07;(3):312-3. doi: 10.1039/b211743f.

A homobimetallic supramolecular helicate has been prepared from a new multimodal ligand, and used to template the formation of two polyiodide networks, one containing an unprecedented figure-of-eight polyiodide helix, the other dominated by peripheral C-H...I polyiodide chain interactions.

Titanium and zirconium complexes supported by dipyrrolide ligands.

Chemical communications (Cambridge, England)

Novak A, Blake AJ, Wilson C, Love JB.
PMID: 12478751
Chem Commun (Camb). 2002 Dec 07;(23):2796-7. doi: 10.1039/b208751k.

The reactions between meso-disubstituted dipyrromethanes and titanium and zirconium amides and alkyls have generated the first examples of dipyrrolide complexes of Group 4 metals.

Continuum percolation threshold for interpenetrating squares and cubes.

Physical review. E, Statistical, nonlinear, and soft matter physics

Baker DR, Paul G, Sreenivasan S, Stanley HE.
PMID: 12443288
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Oct;66(4):046136. doi: 10.1103/PhysRevE.66.046136. Epub 2002 Oct 30.

Monte Carlo simulations are performed to determine the critical percolation threshold for interpenetrating square objects in two dimensions and cubic objects in three dimensions. Simulations are performed for two cases: (i) objects whose edges are aligned parallel to one...

Unprecedented Seven- and Eight-Connected Lanthanide Coordination Networks This work was supported by the Royal Society and the Engineering and Physical Sciences Research Council (Royal Society K. C. Wong and EPSRC postdoctoral fellowships to D.-L.L.). .

Angewandte Chemie (International ed. in English)

Long DL, Blake AJ, Champness NR, Wilson C, Schröder M.
PMID: 11443659
Angew Chem Int Ed Engl. 2001 Jul 02;40(13):2443-2447.

No abstract available.

Evidence from the Pacific troposphere for large global sources of oxygenated organic compounds.

Nature

Singh H, Chen Y, Staudt A, Jacob D, Blake D, Heikes B, Snow J.
PMID: 11323667
Nature. 2001 Apr 26;410(6832):1078-81. doi: 10.1038/35074067.

The presence of oxygenated organic compounds in the troposphere strongly influences key atmospheric processes. Such oxygenated species are, for example, carriers of reactive nitrogen and are easily photolysed, producing free radicals-and so influence the oxidizing capacity and the ozone-forming...

Dynamic equilibria in the products of intramolecular Buchner additions of diazoketones to aryl rings bearing methoxy substituents.

The Journal of organic chemistry

Maguire AR, O'Leary P, Harrington F, Lawrence SE, Blake AJ.
PMID: 11597247
J Org Chem. 2001 Oct 19;66(21):7166-77. doi: 10.1021/jo015750l.

Rhodium carboxylate catalyzed aromatic addition reactions of a range of diazoketones bearing methoxy-substituted aryl rings have been explored. While the existence of norcaradiene-cycloheptatriene equilibria in related compounds is well established, the aromatic addition products in this study display more...

Non-natural eight-connected solid-state materials: a new coordination chemistry.

Angewandte Chemie (International ed. in English)

Long DL, Hill RJ, Blake AJ, Champness NR, Hubberstey P, Proserpio DM, Wilson C, Schröder M.
PMID: 15054793
Angew Chem Int Ed Engl. 2004 Mar 26;43(14):1851-4. doi: 10.1002/anie.200352625.

No abstract available.

PtII diimine chromophores with perfluorinated thiolate ligands: nature and dynamics of the charge-transfer-to-diimine lowest excited state.

Inorganic chemistry

Weinstein JA, Blake AJ, Davies ES, Davis AL, George MW, Grills DC, Lileev IV, Maksimov AM, Matousek P, Mel'nikov MY, Parker AW, Platonov VE, Towrie M, Wilson C, Zheligovskaya NN.
PMID: 14577775
Inorg Chem. 2003 Nov 03;42(22):7077-85. doi: 10.1021/ic026286l.

The synthesis of new Pt(II) diimine complexes bearing perfluorinated thiolate ligands, Pt(II)(NN)(4-X-C(6)F(4)-S)(2), where NN = 2,2'-bipyridine or 1,10-phenanthroline and X = F or CN, is reported, together with an investigation of the nature and dynamics of their lowest excited...

Showing 25 to 36 of 684 entries