Evidence map›Paper›PMID 32204399›Full record

ReviewMolecules (Basel, Switzerland)2020

Solid-State NMR Techniques for the Structural Characterization of Cyclic Aggregates Based on Borane-Phosphane Frustrated Lewis Pairs.

Robert Knitsch, Melanie Brinkkötter, Thomas Wiegand, Gerald Kehr, Gerhard Erker, Michael Ryan Hansen, Hellmut Eckert

Abstract readReview
In one paragraph

Review in Molecules (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Robert KnitschInstitut für Physikalische Chemie, WWU Münster, 48149 Münster, Germany.
Melanie BrinkkötterInstitut für Physikalische Chemie, WWU Münster, 48149 Münster, Germany.
Thomas WiegandLaboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland.
Gerald KehrOrganisch-Chemisches Institut, WWU Münster, 48149 Münster, Germany.ORCID 0000-0002-5196-2491
Gerhard ErkerOrganisch-Chemisches Institut, WWU Münster, 48149 Münster, Germany.
Michael Ryan HansenInstitut für Physikalische Chemie, WWU Münster, 48149 Münster, Germany.
Hellmut EckertInstitut für Physikalische Chemie, WWU Münster, 48149 Münster, Germany.ORCID 0000-0002-6536-0117

Funding

Deutsche Forschungsgemeinschaft SFB858
6 · The paper itself

Abstract

Modern solid-state NMR techniques offer a wide range of opportunities for the structural characterization of frustrated Lewis pairs (FLPs), their aggregates, and the products of cooperative addition reactions at their two Lewis centers. This information is extremely valuable for materials that elude structural characterization by X-ray diffraction because of their nanocrystalline or amorphous character, (pseudo-)polymorphism, or other types of disordering phenomena inherent in the solid state. Aside from simple chemical shift measurements using single-pulse or cross-polarization/magic-angle spinning NMR detection techniques, the availability of advanced multidimensional and double-resonance NMR methods greatly deepened the informational content of these experiments. In particular, methods quantifying the magnetic dipole-dipole interaction strengths and indirect spin-spin interactions prove useful for the measurement of intermolecular association, connectivity, assessment of FLP-ligand distributions, and the stereochemistry of adducts. The present review illustrates several important solid-state NMR methods with some insightful applications to open questions in FLP chemistry, with a particular focus on supramolecular associates.

Indexed as

BoranesCycloaddition ReactionLewis BasesNuclear Magnetic Resonance, BiomolecularPhosphinesBoranesLewis BasesphosphinePhosphinesaggregationdipolar spectroscopyFrustrated Lewis pairsinternuclear distance measurementsolid-state NMR

Identifiers

PMID32204399
PMCPMC7144405

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.