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Showing 1 to 20 of 3632 for “"BIS"”.
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Substituierte Erdalkalimetall-bis(pentolide) und –bis(trialkylzinkate)
… erweckt das Gebiet der Erdalkalimetallbis( pentolide) erst seit einigen Jahren das Interesse einiger Arbeitsgruppen. Westerhausen et al. konnten vor einigen Jahren bei der Umsetzung von Diphenylbutadiin mit Calcium- und Strontium-bis[bis(trimethylsilyl)phosphanid] die Bildung von …
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NOVEL ETHYLENE-BRIDGED HEXADENTATE BIS(AMIDINES), BIS(AMIDINATES), AND MULTINUCLEAR COINAGE METAL BIS(AMIDINE) COMPLEXES
<p>A new series of hexadentate flexible bis(amidine) ligands (<strong>L<sup>1–6</sup></strong>H<sub>2</sub>) and the multinuclear coinage metal complexes <strong>1</strong>–<strong>5</strong> of <strong>L<sup>4</sup></strong>H<sub>2</sub> were synthesized and characterized. The synthesis of<strong> …
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Synthetic routes to asymmetrical Alkylenediimidosulfites and Novel Heteroarene-linked Bis-diimidosulfinates and Bis-triimidosulfonates
… class of compounds were synthesised: the aryl-bis-(diimidosulfinates). In this compounds two SN2 units are connected via a heteroaromatic linker, containing a potential donor centre in metal coordination. They represent, like the known alkyldiimidosulfinates, dipodal monoanionic ligands. In the …
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Bis(pentafulven)komplexe des Titans
… disubstituted pentafulvenes, a series of new bis(fulvene) and bis(benzofulvene) group IV compounds was synthesized within the scope of this thesis. The titanium fulvene compounds are readily prepared by a direct reductive complexation of the fulvenes to titanium trihalide in the presence of …
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Transition metal bis(porphyrin) complexes
Metal bis(porphyrin) complexes M(porph)$\sb2$ have received much attention in the last ten years due to their electronic and structural similarities to the Special Pair in photosynthetic bacteria. The work presented here covers the first transition metal bis(porphyrin) complexes. In addition, the …
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Synthesis of alkyl- and poly(ethylene)glycol linked bis-dioxocyclams from bis-chromium carbene complexes
Alkyl-linked bis-chromium carbene complexes have been prepared via deprotonation and α-alkylation of (methoxy)(methyl) chromium carbene complexes using l,n-bis-triflates as electrophiles. These bis-carbene complexes were then photolyzed with N-protected imidazolines to give protected bis-azapenams. …
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Síntesis y estudio de las reacciones de cicloadición de bis- ditiolo- 1,4- Tiazinas y bis- ditiolopirroles
… materiales. 2. Estudio de la reactividad de bisditioltionas frente a reactivos 1,3-dipolares Las bisditioltionas reaccionan frente a reactivos 1,3-dipolares involucrando unicamente al grupo tiona. Se genera de esta forma un cicloaducto de estructura espiranica, que normalmente sufre una …
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Functional Nanomaterials From Bis-Urea Macrocycles
<p>Self-assembly of bis-urea macrocycles usually give tubular crystals with nano-sized channels that we use as molecular container. These molecular containers alter the reactivity, stability, and chemical behavior of the reactants entrapped within them. This dissertation is focused on bulk …
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Chemoselective Oxidation of 6,13-Bis(decylthio) Pentacene
<p>Organic semiconductors present much potential for industrial use because of their possible low cost production, Pentacene and pentacene derivatives are promising candidates for organic semiconductor research since their ^-conjugated electronic structures possess small HOMO- LUMO gaps and high …
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Surface Catalyzed Fenton Treatment of bis(2-chlorethyl) ether (BCEE), bis(2-chloroethoxy) methane (BCEM) and 1,2-dichloroethane (1,2-DCA)
… remediate soil and groundwater contaminated with bis(2-chloroethyl ether (BCEE), bis(2-chloroethoxy) methane (BCEM), and 1,2-dichloroethane (1,2-DCA) among other contaminants. Parameters that affect the contaminant loss rate such as pH, hydrogen peroxide concentration and solid/water ratio were …
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LITISPENDENZA E CONNESSIONE NEL REGOLAMENTO BRUXELLES I-BIS
… come disciplinate nel regolamento Bruxelles I-bis. Al fine di meglio comprendere il sistema in cui la norma sulla litispendenza si cala si è proceduto ad effettuare innanzitutto una ricostruzione del percorso di formazione del diritto processuale europeo, a partire dai trattati costitutivi …
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64Cu-bis(thiosemicarbazone) complexes for delineating myocardial hypoxia
… treatment of a range of cardiovascular diseases. Bisthiosemicarbazone (BTSC) ligands readily chelate positron emitting copper isotopes, and have been demonstrated to selectively accumulate in hypoxic tissue in vitro, in vivo, and in isolated perfused hearts. While the lead compound Cu-ATSM has …
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Configurationally restricted bis-tetraazamacrocyclic complexes: chemokine receptor antagonists
… identified as a potential therapeutic target.Bis-macrocyclic drugs (e.g. AMDS 100) bind to aspartate residues on the CXCR4 surface and inhibit HIV replication by blocking the interaction of gp!20/gp41 with the protein. The incorporation of transition metals (e.g. zinc(II) and copper(II)) into …
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Synthesis and Coordination Complexes of Bis-Pocket Siloxyporphyrins
… synthetic route for an alkylthiolate-tailed bis-face protected iron porphyrin was developed. The high stability of this compound is likely due to the protection from the siloxy pocket around the thiolate tail. Very similar rhombic, high spin EPR spectra for this model compound and the P450 …
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Some Coordination Polymers Prepared From Bis-(beta-Diketones)
Made available in DSpace on 2014-12-05T19:37:42Z (GMT). No. of bitstreams: 1 6101654.pdf: 2790977 bytes, checksum: fbf69a7ee042cd02da3ce1a8f12f8c8e (MD5) Previous issue date: 1961
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