How Does Chemistry of Rare Earth Metals Coordination Complexes Can Enhance System Thinking Ability? A Qualitative Content Analysis Study
Banu Kisworo (a)(b), Ahmad Mudzakir (c*), Liliasari (c)

a) Doctorate Program of Science Education, School of Post Graduate Studies, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
b) Department of Chemistry Education, Universitas Muhammadiyah Cirebon, Jl. Tuparev No. 70, Cirebon 45153, Indonesia
c) Department of Chemistry Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*mudzakir.kimia[at]upi.edu

Abstract

Chemistry of rare earth metals coordination complexes has a potential as a material for teaching and learning sustainable chemistry principles. These principles consider environmental, society and economic aspects. System thinking has an important role to linking the chemistry of rare earth metals coordination complexes to the principle of sustainability. This study was conducted to obtain scientist conception about chemistry of rare earth metals coordination complexes as sustainable material that emphasized enhancement students system thinking ability. The Method used is qualitative content analysis (inductive literature review type). It is includes the collection of research articles, descriptive analysis, category selection and material evaluation based on didactical view. In inductive approach, determining definitions and coding for each category can be developed after the materials have been analyzed. The instrument used is a content analysis format related to the concept of rare earth metals coordination complexes. The results showed that the scientist^s conception of rare earth metals coordination complexes can be analyzed to qualitative with used inductive approach. The scientist^s conception was obtained which are important concepts such as synthesis, characterization, and application of material based on rare earth metals. The synthesis of coordination complexes is carried out using central atoms in the form of metals and/or rare earth ions with several of ligands. The characterization of complexes compound conducted to determine their solubility, compositions, crystal structure, and physicochemical properties. The materials of the rare earth metals coordination complexes are widely used in the manufacture of electronic equipment because its ability is more long time, easy to recharging and recycling. Based on its application reviewed, chemistry of coordination complexes showed environmentally safe properties, safe to society, and increase economic value.

Keywords: Chemistry of coordination complexes- Rare earth metals- Sustainability- System thinking

Topic: Chemistry Education