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   Articles with "osmium" as a keyword



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Osmium Tag for Post‐transcriptionally Modified RNA

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recommendations! Published in 2018 at "ChemBioChem"

DOI: 10.1002/cbic.201800274

Abstract: 5‐Methylcytidine (m5C) and 5‐methyluridine (m5U) are highly abundant post‐transcriptionally modified nucleotides that are observed in various natural RNAs. Such nucleotides were labeled through a chemical approach, as both underwent oxidation at the C5=C6 double bond,… read more here.

Keywords: osmium tag; post transcriptionally; osmium; transcriptionally modified ... See more keywords

Enzyme Immobilization and Mediation with Osmium Redox Polymers.

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recommendations! Published in 2017 at "Methods in molecular biology"

DOI: 10.1007/978-1-4939-6499-4_13

Abstract: Enzymatic electrodes are becoming increasingly common for energy production and sensing applications. Research over the past several decades has addressed a major issue that can occur when using these biocatalysts, i.e., slow heterogeneous electron transfer,… read more here.

Keywords: osmium; enzyme immobilization; electron transfer; immobilization mediation ... See more keywords

Analysis of the spectrum of the (5d6+5d56s)−(5d56p+5d46s6p) transitions of two times ionized osmium (Os III)

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recommendations! Published in 2017 at "Atomic Data and Nuclear Data Tables"

DOI: 10.1016/j.adt.2017.10.001

Abstract: Abstract The spectrum of osmium was observed in the (225–2100) A wavelength region. The (5d6 + 5d56s) − (5d56p + 5d46s6p) transition array of two times ionized osmium, Os III, has been investigated and 1039 spectral… read more here.

Keywords: osmium; 5d56p 5d46s6p; 5d6 5d56s; 5d56s 5d56p ... See more keywords

Dioxygen Activation by Internally Aromatic Metallacycle: Crystallographic Structure and Mechanistic Investigations

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recommendations! Published in 2020 at "iScience"

DOI: 10.1016/j.isci.2020.101379

Abstract: Summary Mononuclear metal-peroxo species are invoked as the key intermediates in metalloenzymatic or synthetic catalysis. However, either transience or sluggishness reactivity of synthetic analogs of metal-peroxo species impedes our understanding of oxygen activation mechanism. Herein,… read more here.

Keywords: osmium; peroxo; aromatic metallacycle; internally aromatic ... See more keywords

Facile Os-Os bond cleavage in the reactions of [Os3(CO)10(NCMe)2] and [Os3(CO)10(μ-H)2] with tetramethylthiuram disulfide (tmtd): Syntheses and crystal structures of new polynuclear osmium carbonyl complexes containing a dimethyldithiocarbamate ligand(s)

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recommendations! Published in 2020 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2020.121133

Abstract: Abstract The reaction of the labile triosmium cluster [Os3(CO)10(NCMe)2] with tetramethylthiuram disulfide [(Me2NCS2)2, tmtd] has been investigated at room temperature. Conducting the reaction under mild conditions has permitted the isolation of the three new polynuclear… read more here.

Keywords: osmium; tetramethylthiuram disulfide; os3 ncme; new polynuclear ... See more keywords

Decoration of voids with rhenium and osmium transmutation products in neutron irradiated single crystal tungsten

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recommendations! Published in 2019 at "Scripta Materialia"

DOI: 10.1016/j.scriptamat.2019.07.036

Abstract: Abstract High temperature, neutron irradiated single crystal tungsten, with a post irradiation composition of W - 1.20 ± 0.11 at.%Re - 0.11 ± 0.05 at.%Os - 0.03 ± 0.01 at.%Ta was characterised using a combination of Atom Probe Tomography (APT) and Scanning Transmission Electron… read more here.

Keywords: single crystal; neutron irradiated; crystal tungsten; irradiated single ... See more keywords

Determination of the Isotopic Composition of Osmium Using MC-ICPMS.

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recommendations! Published in 2018 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.8b01859

Abstract: Despite its widespread applications in geology, all osmium isotope ratio measurements are either uncalibrated or rely on the veracity of the uncalibrated 1937 Nier values by adopting them as normalizing constants typically in conjunction with… read more here.

Keywords: osmium; determination isotopic; osmium using; isotopic ... See more keywords

Establishing an Active Descriptor in the Binding of Alkanes to Osmium Complexes.

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recommendations! Published in 2025 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.5c03752

Abstract: Within the realm of alkane functionalization, transition metal σ-alkane complexes have emerged as pivotal intermediates, offering new pathways for efficient C-H bond activation. To obtain the long-lived osmium σ-alkane intermediates, active descriptors for estimating the… read more here.

Keywords: alkane; establishing active; active descriptor; osmium ... See more keywords

Preparation of Phosphorescent Osmium(IV) Complexes with N,N′,C- and C,N,C′-Pincer Ligands

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recommendations! Published in 2017 at "Organometallics"

DOI: 10.1021/acs.organomet.7b00193

Abstract: Four different pincer ligands, which prove that the disposition of the donor atoms in pincer ligands allows them to develop a marked ability to form less common coordination polyhedra and to favor unusual metal oxidation… read more here.

Keywords: osmium; mepz c6h4; pincer ligands; pipr3 ... See more keywords

Four- and Five-Coordinate Osmium(IV) Nitrides and Imides: Circumventing the “Nitrido Wall”

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recommendations! Published in 2017 at "Organometallics"

DOI: 10.1021/acs.organomet.7b00707

Abstract: Osmium nitride chemistry is dominated by osmium(VI) in octahedral or square-pyramidal coordination. The stability of the d2 configuration and preference of the strong σ- and π-donor nitride for apical coordination is in line with the… read more here.

Keywords: osmium; coordination; osmium nitrides; four five ... See more keywords

Controlled fabrication of osmium nanocrystals by electron, laser and microwave irradiation and characterisation by microfocus X-ray absorption spectroscopy.

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recommendations! Published in 2017 at "Chemical communications"

DOI: 10.1039/c7cc07133g

Abstract: Osmium nanocrystals can be fabricated by electron (3-50 nm, formed by atom migration), 785-815 nm laser (20-50 nm, in micelle islands), and microwave (ca. 1 nm in arrays, >100 mg scale) irradiation of a polymer-encapsulated… read more here.

Keywords: osmium; laser; ray absorption; osmium nanocrystals ... See more keywords