نتایج جستجو برای: vanadium complexes

تعداد نتایج: 144210  

Journal: :Advanced Energy Materials 2023

Alkaline Water Electrolysis In article number 2203844, Duy Thanh Tran, Joong Hee Lee, and co-workers demonstrate a dual-functional high-performance electrocatalyst by immobilizing intermolecular metallic single-site complexes of iron phthalocyanine (FePc) vanadium oxide (VOPc) on 3D hierarchical MoS2-coated MXene heterostructures for sustainable alkaline water electrolysis.

Journal: :Dalton transactions 2013
Gholamhossein Mohammadnezhad Michael Böhme Daniel Geibig Anja Burkhardt Helmar Görls Winfried Plass

The sugar-modified Schiff-base ligands derived from benzyl 2-deoxy-2-salicylideneamino-α-D-glucopyranoside (H2L(5-Br) and H2L(3-OMe)) were used to prepare the chiral oxidovanadium(V) complexes [VO(L(5-Br))(OMe)] (1) and [VO(L(3-OMe))(OMe)] (2) which can be isolated from a methanol solution as the six-coordinate complexes with an additional methanol ligand [VO(L(5-Br))(OMe)(MeOH)] (1-MeOH) and [...

Journal: :Chemical communications 2014
Giuseppe Zampella Luca Bertini Luca De Gioia

Bromoperoxidase catalytic activity exerted by oxidated amavadin [V(HIDPA)2](-) (HIDPA = 2,2'-(hydroxyimino) dipropionate) in mono- and bis-protonated forms has been investigated by DFT. Possible reaction pathways for formation of peroxido/hydroperoxido complexes and subsequent bromide oxidation have been systematically dissected. The effect of increasing [H(+)] on catalytically active species a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2000
P Ghosh O J D'Cruz R K Narla F M Uckun

We systematically assessed the cytotoxic effects of five metallocene dichlorides containing vanadium (vanadocene dichloride), titanium (titanocene dichloride), zirconium (zircodocene dichloride), molybdenum (molybdocene dichloride), and hafnium (hafnocene dichloride) as the central metal atom and 19 other vanadocene complexes. These compounds were tested against the human testicular cancer cell...

Journal: :Molecules 2010
Valentina Uivarosi Stefania Felicia Barbuceanu Victoria Aldea Corina-Cristina Arama Mihaela Badea Rodica Olar Dana Marinescu

Complexes between oxovanadium (IV) cation and flavonoid derivatives were developed recently in order to increase the intestinal absorption and to reduce the toxicity of vanadium compounds. For these reasons, is interesting to investigate the complexation process between flavonoid rutin (Rut) and vanadyl cation in order to isolate new complexes. Two new complexes [VO(Rut)(H2O)2](SO4)0.5 x 2 H2O ...

2012
Martin Hoch Dieter Rehder

Recent investigations into the coordinative properties of oligodentate phosphorus ligands towards carbonylvanadium and -niobium complexes in our laboratory have lead to a large body of systematic IR, 31P and metal NMR data, including those on CpV(C0)4 and CpNb(C0)4 derivatives with ditertiary [2-5] and tritertiary phosphines [6, 7]. In this communication, we report on the reaction pattern obser...

2005
David C. Sherrington

Bbstract Recent developments involving polymer-supported metal complexes as catalysts in oxidation reactions, using dioxygen, hydrogen peroxide, alkyl hydroperoxides, hypochlorite anion and iodosobenzene as oxidants are reviewed. binding of dioxygen, and in catalysis, along with the structurally closely related metallo-phthalocyanines, oxidative polymerization catalysed by polymer-supported cop...

2013
Michael North James M Watson

Structurally well-defined bimetallic titanium(IV) (salen) and monometallic vanadium(V) (salen) complexes have been used as catalysts for the asymmetric addition of trimethylsilyl cyanide to β-nitroalkenes to produce chiral nitronitriles with ee values in the range of 79-89 % and conversions up to 100 % at 0 °C. The reaction conditions (solvent, temperature, time and vanadium complex counter-ion...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید