Topics

Barium siloxides and catalysed formation of Si-O-Si' motifs.

08:00 EDT 14th August 2019 | BioPortfolio

Summary of "Barium siloxides and catalysed formation of Si-O-Si' motifs."

The first unsupported barium siloxide, the homoleptic dimer [Ba2{μ2-OSi(SiMe3)3}3{OSi(SiMe3)3}], is presented, and its structural features are discussed in the light of DFT computations. This complex, together with the related [Ba{μ2-OSi(SiMe3)3}{N(SiMe3)2}]2 and their parent [Ba{N(SiMe3)2}2]2, mediate the formation of asymmetric siloxanes R3Si-O-SiR'3 through the first case of main group metal-mediated dehydrocoupling of silanols and hydrosilanes. Early kinetic analysis highlights an unusual catalytic manifold.

Affiliation

Journal Details

This article was published in the following journal.

Name: Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
Pages:

Links

DeepDyve research library

PubMed Articles [5953 Associated PubMed Articles listed on BioPortfolio]

Recent advances in the synthesis of axially chiral biaryls via transition metal-catalysed asymmetric C-H functionalization.

Axially chiral biaryl motifs are widely present in natural products and pharmaceuticals. Moreover, they have been broadly used as privileged ligands in asymmetric catalysis. Over the past few decades,...

A De Novo Shape Motif Discovery Algorithm Reveals Preferences of Transcription Factors for DNA Shape Beyond Sequence Motifs.

DNA shape adds specificity to sequence motifs but has not been explored systematically outside this context. We hypothesized that DNA-binding proteins (DBPs) preferentially occupy DNA with specific st...

Charge-state analysis of small barium-oxide clusters by X-ray absorption spectroscopy.

Small barium-oxide clusters BamOn+ are studied by mass spectrometry and X-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. It is found t...

Acute barium poisoning in a dog after ingestion of handheld fireworks (party sparklers).

To report a case of acute barium poisoning in a dog subsequent to ingestion of a common handheld pyrotechnic (sparkler).

Oxygen-dependent bond formation with FIH regulates the activity of the client protein OTUB1.

Protein:protein interactions are the basis of molecular communication and are usually of transient non-covalent nature, while covalent interactions other than ubiquitination are rare. For cellular ada...

Clinical Trials [939 Associated Clinical Trials listed on BioPortfolio]

MR Colonography With Fecal Tagging. Barium vs. BariumFerumoxsil

The purpose of this study is to determine whether Barium or BariumFerumoxsil is better for fecal tagging in MR colonography. Patients referred to colonoscopy are offered MR colonography be...

Uniformity of Oral Contrast Material in the Bowel

Although positive oral contrast agents are used for the majority of abdominopelvic CT scans in the United States, the quality of bowel opacification has not been compared between the three...

Comparison of Barium Enema, Computed Tomographic Colonography, and Colonoscopy in Detecting Colon Cancer

RATIONALE: Screening tests may help doctors detect cancer cells early and plan more effective treatment for cancer. New diagnostic procedures such as computed tomographic colonography may ...

Measurement of Gastric Band Stoma Diameter

The purpose of this study is to correlate accurate fluoroscopic measurement of gastric band stoma diameter with patient symptoms for optimal band stoma adjustment. Administration of a bari...

Ultrasound and Videofluoroscopy for Diagnosing Swallowing Disorders

This study will identify clinical signs and symptoms critical for diagnosing swallowing disorders and will characterize swallowing problems in various patient populations, such as patients...

Medical and Biotech [MESH] Definitions

X-RAY examination of LOWER GASTROINTESTINAL TRACT. Imaging is done while a BARIUM COMPOUND (e.g., BARIUM SULFATE) fills the large intestine via the rectum as a CONTRAST MATERIAL.

Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes.

Inorganic compounds that contain barium as an integral part of the molecule.

Protein structural motifs that play a role in protein-protein binding. The motifs are comprised of approximately 50 residues. Their name derives from the fact that they were found in cyclin F.

Calcium-binding motifs composed of two helixes (E and F) joined by a loop. Calcium is bound by the loop region. These motifs are found in many proteins that are regulated by calcium.

Quick Search


DeepDyve research library

Searches Linking to this Article