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Record W2028152796 · doi:10.1179/026708303225004756

Nuclear magnetic resonance studies of metals in solid state non-metallic materials

2003· article· en· W2028152796 on OpenAlex
Katta Eswar Srikanth, Robert W. Schurko, Ivan Hung, Ayyalusamy Ramamoorthy

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueMaterials Science and Technology · 2003
Typearticle
Languageen
FieldChemistry
TopicAdvanced NMR Techniques and Applications
Canadian institutionsUniversity of Windsor
Fundersnot available
KeywordsSolid-state nuclear magnetic resonanceMaterials sciencePolymerNuclear magnetic resonance spectroscopyMoleculeMetalSpectroscopyChemical physicsNanotechnologyNuclear magnetic resonanceChemistryOrganic chemistryMetallurgy

Abstract

fetched live from OpenAlex

The chemical nature of a metal modulates the properties and applications of various types of materials such as zeolites, inorganic complexes, polymers, metalloproteins, and RNA. To understand the roles of metals in these materials, and to design new metal containing materials, it is essential to understand the coordination chemistry around each metal site. Solid state nuclear magnetic resonance (NMR) spectroscopy has become one of the most valuable techniques for investigation of the structural and functional aspects of many important systems with no long range order, such as glasses, resins, catalysts, polymers, coals, silicates, and a variety of biological solids (viruses, fibril forming molecules, molecules embedded in the cell membrane). This overview presents several developments of solid state NMR to the study of a variety of metal containing materials. In particular, the use of the quadrupolar Carr-Purcell-Meiboom-Gill (QCPMG) pulse sequence techniques for the acquisition of solid state NMR spectra of quadrupolar nuclei, notably those with low natural abundances and low NMR frequencies, and applications of solid state 113Cd NMR are covered in detail.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.018
Threshold uncertainty score0.514

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.297
Teacher spread0.282 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it