نتایج جستجو برای: 13 cyclooctadiene

تعداد نتایج: 332763  

Journal: :Dalton transactions 2015
Asami Mori Takayoshi Suzuki Yuichi Nakatani Yukinari Sunatsuki Masaaki Kojima Kiyohiko Nakajima

A reaction of [PdCl2(cod)] (cod = 1,5-cyclooctadiene) and an E/Z mixture of quinoline-2-carbaldehyde (pyridine-2-carbonyl)hydrazone (HL) gave two kinds of Pd(II) mononuclear complexes, [PdCl(Z-L-κ(3)N,N',N'')] (1) and [PdCl2(E-HL'-κ(2)N,N')] (2), where L(-) is the deprotonated hydrazonate anion and HL' is the quinolinium-hydrazonate zwitterionic form of HL. Complex 2 is gradually converted to 1...

Journal: :Inorganic chemistry 2002
Jorge Tiburcio William D Jones Stephen J Loeb Hugo Torrens

The compound 2,11-dithia[3.3]orthocyclophane (L) is a mesocyclic dithioether that can act as a bidentate ligand in different conformations. In the ionic heteroleptic complexes [PtL(eta(4)-cod)][CF(3)SO(3)](2) (1), [RhL(eta(4)-cod)][CF(3)SO(3)] (2), and [IrL(eta(4)-cod)][CF(3)SO(3)] (3) (cod = 1,5-cyclooctadiene), L is coordinated in the anti I conformation both in solution and in the solid stat...

2016
Alicja K. Michalczyk

Site selectivity, regioselectivity and stereoselectivity of [2 + 3] cycloaddition of 4-trifluoromethylbenzonitrile oxide to polyunsaturated medium size rings including 1,5,9-cyclododecatriene, 11-membered sesquiterpenes, 1,3-cyclooctadiene and 5-vinyl-2norbornene were examined. Site selectivity was correlated with electron charges of alkenyl carbon atoms. Structure of the products has been esta...

Journal: :Inorganic chemistry 2006
Stefan Deeken Günter Motz Viktor Bezugly Horst Borrmann Frank R Wagner Rhett Kempe

Stoichiometric-deficient lithiation of (2,6-diisopropylphenyl)(4-methylpyridin-2-yl)amine and reaction with [(cod)PdCl2] (cod = 1,5-cyclooctadiene) yield a dimeric Pd complex. X-ray structural analysis of this complex reveals a very short Pd-Pd distance (2.429 A). Topological analysis of the electron density and the electron localization function from scalar relativistic density functional theo...

Journal: :Chemical communications 2012
Gangguo Zhu Dongxu Chen Yuyi Wang Renwei Zheng

An unprecedented Pd-catalyzed hydrohalogenation of alkynyl halides for the regio- and stereoselective synthesis of (Z)-1,2-dihaloalkenes has been realized using [(allyl)PdCl](2) as the catalyst and cis,cis-1,5-cyclooctadiene as the ligand. The advantages of this protocol are well illustrated by the assembly of trisubstituted (Z)-enynes and multifunctional benzenes via iterative cross-coupling r...

Journal: :Chemical communications 2013
Wenting Liang Cheng Yang Dayang Zhou Hitoshi Haneoka Masaki Nishijima Gaku Fukuhara Tadashi Mori Franca Castiglione Andrea Mele Fabrizio Caldera Francesco Trotta Yoshihisa Inoue

Pyromellitate-bridged cyclodextrin nanosponges (CDNSs) evolved from sol into gel state upon gradual increase of the concentration from 0.2 to 2000 mg mL(-1) in water. The enantiodifferentiating geometrical photoisomerizations of (Z)-cyclooctene and (Z,Z)-1,3-cyclooctadiene sensitized by CDNS at various concentrations were critically affected by the phase transition of CDNS to afford the corresp...

Journal: :Current Directions in Biomedical Engineering 2021

Abstract High quality recording of neuronal activities and electrical stimulation require neurotechnical implants with appropriate electrode material. Iridium oxide (IrOx) is an excellent choice material due to its biocompatibility, low electrochemical impedance, superior charge injection capacity, corrosion resistance, longevity, stability. Plasma enhanced atomic layer deposition (PE-ALD) a su...

Journal: :Organic letters 2006
Christopher C Scarborough Shannon S Stahl

[Structure: see text] Palladium(II) catalyzes the oxidative coupling of allyl tosylamides with butyl vinyl ether and various styrene derivatives to produce 2,4-substituted pyrrolidine products at room temperature. Molecular oxygen together with a copper(II) cocatalyst mediates reoxidation of the palladium catalyst. The reactions with styrene substrates can be performed in an open flask with amb...

Journal: :Molecules 2010
Maria Michela Dell'Anna Vito Gallo Piero Mastrorilli Giuseppe Romanazzi

Catalytic hydrogenation under mild conditions of olefins, unsaturated aldeydes and ketones, nitriles and nitroarenes was investigated, using a supported rhodium complex obtained by copolymerization of Rh(cod)(aaema) [cod: 1,5-cyclooctadiene, aaema-: deprotonated form of 2-(acetoacetoxy)ethyl methacrylate] with acrylamides. In particular, the hydrogenation reaction of halonitroarenes was carried...

2010
Christos F. Karanikas James J. Watkins

The kinetics of ruthenium thin film deposition via the hydrogen assisted reduction of bis(2,2,6,6-tetramethyl-3,5-heptanedionato)(1,5-cyclooctadiene)ruthenium(II) [Ru(tmhd)2cod] in supercritical carbon dioxide was studied. Deposition temperature was varied from 240 C to 280 C and the apparent activation energy was determined to be 45.3 kJ/mol. Deposition rates up to 30 nm/min were attained. The...

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