Français
1. Coordination chemistry
The origins of coordination chemistry lie in the work of A. Werner at the end of the 19th century . Based on his work, Werner postulated that metal ions possess two types of valence: primary valence (today called oxidation number) and secondary valence (today called coordination number), which can be different.
A coordination compound can be defined as a polyatomic structure in which an ion of a transition element, i.e. an element from blocks d or f of the periodic table (figure
The Ultimate Scientific and Technical Reference
This article is included in
Optics and photonics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Coordination chemistry
Rare earths
Bibliography
- (1) - - https://www.alternatives-economiques.fr/pierre-jacquemot/afrique-medicaments-tuent/00091581
- (2) - WERNER (A.) - Beitrag zur Konstitution anorganischer...
Standards and norms
- Chemical analysis of magnesium and its alloys – Rare earth assay – Gravimetric method. - ISO 2355 - 1972
Regulations
Law no. 2020-105 of February 10, 2020 on the fight against waste and the circular economy. Journal Officiel de la République Française, February 11, 2020.
Commission Regulation (EU) 2022/1616 of September 15, 2022 on recycled plastic materials and articles intended to come into contact with foodstuffs and repealing Regulation (EC) No 282/2008. Official Journal of the European Union, L. 243/3....
Patents
Cerium electrolytic oxidation process and electrolysis unit for its implementation CA2582058.
Method of marking a material comprising at least one mineral matrix and corresponding material FR2906393.
Method of marking materials based on thermoplastic or thermosetting organic polymeric matrices FR2917226
Powder formed from core-shell particles comprising...
The Ultimate Scientific and Technical Reference
