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859 Aktuelle Fachpublikationen zum Thema Rhenium

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Understanding solid-state photoswitching in [Re(OMe2-bpy)(CO)3([small eta]1-NO2)] crystals via in-situ photocrystallography

26.06.2018 | Lauren E. Hatcher, CrystEngComm, 2018

Single-crystal-to-single-crystal nitro → nitrito isomerism is reported for the novel rhenium(i)-bipyridine complex [Re(OMe2-bpy)(CO)3(η1-NO2)], achieving a maximum conversion of 66% to a photoinduced nitrito-(η1- [[O with combining low line]] NO) isomer under continuous illumination. The 3D X-ray ...

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Anticancer activity of complexes of the third row transition metals, rhenium, osmium, and iridium

20.06.2018 | Chilaluck C. Konkankit; Sierra C. Marker; Kevin M. Knopf; Justin J. Wilson, Dalton Transactions, 2018

The clinical success of the platinum-based chemotherapeutic agents has prompted the investigation of coordination and organometallic complexes of alternative metal centers for use as anticancer agents. Among these alternatives, the third row transition metal neighbors of platinum on the periodic ...

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The unsuspected influence of the pyridyl-triazole ligand isomerism upon the electronic properties of tricarbonyl rhenium complexes: an experimental and theoretical insight

12.06.2018 | Jinhui Wang; Béatrice Delavaux-Nicot; Mariusz Wolff; Sonia Mallet-Ladeira; Rémi Métivier; Eric Benois ..., Dalton Transactions, 2018

Two isomeric tricarbonyl rhenium(i) complexes, ReL1 and ReL2, that possess a 2-pyridyl-1,2,n-triazole (pyta) ligand (n = 4 and 3, respectively) connected to a 2-phenylbenzoxazole (PBO) moiety, were synthesized in good yields. The X-ray structures showed that in ReL1 the PBO moiety and the pyta ...

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Rhenium(I) based irregular pentagonal-shaped metallacavitands

30.05.2018 | Mamina Bhol; Bhaskaran Shankar; Malaichamy Sathiyendiran, Dalton Transactions, 2018

Neutral ditopic flexible N-donor ligands (Ln = bis(4-(naphtho[2,3-d]imidazol-1-ylmethyl)phenyl)methane, L1 bis(4-(benzimidazol-1-ylmethyl)phenyl)methane, L2 or bis(4-(2-nonylbenzimidazol-1-ylmethyl)phenyl)methane, L3) possessing a bis(4-methylphenyl)methane spacer with two imidazolyl donor units ...

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Exploring the cellular uptake and localisation of phosphorescent rhenium fac-tricarbonyl metallosurfactants as a function of lipophilicity

30.05.2018 | Andrew J. Hallett; Emeline Placet; Roxane Prieux; Danielle McCafferty; James A. Platts; David Lloyd; Marc Isaacs; An ..., Dalton Transactions, 2018

A systematic study of the cellular uptake of emissive complexes as a function of their lipophilicity is presented. Here a series of amphiphilic rhenium fac-tricarbonyl bisimine complexes bearing axial substituted imidazole or thiazole ligands, [Re(bpy)(CO)3(ImCnHm)]+ {n = 1 m = 3 (1+), n = 4 m = ...

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Mild hydrodeoxygenation of phenolic lignin model compounds over a FeReOx/ZrO2 catalyst: zirconia and rhenium oxide as efficient dehydration promoters

29.05.2018 | Pouya Sirous-Rezaei; Jungho Jae; Jeong-Myeong Ha; Chang Hyun Ko; Ji Man Kim; Jong-Ki Jeon; Young-Kwon Park, Green Chemistry, 2018

Strong adsorption of phenolics on zeolite acid sites causes high trapping inside zeolite channels and low catalytic activity of zeolite-supported catalysts in atmospheric pressure hydrodeoxygenation (HDO) of lignin-derived phenolics. This adsorption is more severe at low temperatures, and ...

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Rhenium tricarbonyl complexes with arenethiolate axial ligands

29.05.2018 | Menglan He; H.Y. Vincent Ching; Clotilde Policar; Hélène Charlotte Bertrand, New Journal of Chemistry, 2018

Due to their unique electronic and photophysical properties, rhenium(I) fac-tricarbonyl complexes of general formula Re(N^N)(CO)3Xn+ have been arousing constant interest in many diverse fields and applications, such as CO2 (photo)electroreduction, organic light emitting diodes and materials, ...

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An isotetramolybdate-supported rhenium carbonyl derivative: synthesis, characterization, and use as a catalyst for sulfoxidation

27.05.2018 | Jingkun Lu; Xinyi Ma; Vikram Singh; Yujiao Zhang; Pengtao Ma; Chao Zhang; Jingyang Niu; Jingping Wang, Dalton Transactions, 2018

A novel isotetramolybdate-supported rhenium carbonyl derivative, [(CH3)4N]4[{Re(CO)3}4(Mo4O16)]·H2O (1), has been successfully synthesized and characterized by single crystal X-ray diffraction crystallography, IR and UV spectroscopy, etc. Results showed that, compound 1 is an efficient catalyst ...

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Positive effect of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) on homogeneous photocatalytic reduction of CO2

27.05.2018 | Markus Pschenitza; Simon Meister; Bernhard Rieger, Chemical Communication, 2018

A significant decrease in the amount of the sacrificial electron donor triethanolamine (TEOA) required for the homogeneous photocatalytic reduction of CO2 using rhenium-based catalytic systems can be achieved by adding small quantities of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) to the reaction ...

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Immobilization of carbonyl rhenium tripods on the surface of a trinickel-substituted Dawson-type polyoxotungstate

27.05.2018 | Jiage Jia; Pengtao Ma; Panpan Zhang; Dongdi Zhang; Chao Zhang; Jingyang Niu; Jingping Wang, Dalton Transactions, 2018

A monomeric trinickel(ii)-substituted phosphotungstate [H9P2W15O62Ni3]9− ion is stabilized by grafting three {Re(CO)3} organometallic groups on the surface for the first time. Magnetic measurements manifest that the resulting complex, Na(NH4)5[P2W15O56Ni3(H2O)3(μ3-OH)3(Re(CO)3)3]·18H2O (1), ...

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