A chemical molecule known as a sandwich has a metal attached to two arene (ring) ligands by haptic, covalent connections. The formula for arenes is CnHn, and their derivatives can be either substituted or heterocyclic. It is referred regarded as being "sandwiched" because the metal is often positioned in between the two rings. The metallocenes are a distinct class of sandwich complexes. When ferrocene's structure was verified by X-ray crystallography in a study by J. D. Dunitz, L. E. Orgel, and R. A. Rich in 1956, they coined the phrase "sandwich compound" to describe it. It had been suggested some years prior by Robert Burns Woodward and, separately, by Ernst Otto Fischer that the molecule would include an iron atom wedged between two parallel cyclopentadienyl rings.
Stanislaw Dzwigaj
Sorbonne University, France
Anne M Gaffney
University of South Carolina, United States
Victor Cerda
University of the Balearic Island, Spain
Marta I Litter
Sapienza University of Rome, Italy
Dae Dong Sung
Korea University Sejong Campus, Korea, Republic of
Enrico Paris
CREA-IT & DIAEE, Italy
Collin G Joseph
University Malaysia Sabah, Malaysia
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Dai Yeun Jeong, Jeju National University, Korea, Republic of
Title : Design of efficient and stable structured catalysts for biofuels transformation into syngas by using advanced technologies of nanocomposite active components synthesis, supporting on heat conducting substrates and sintering
Vladislav Sadykov, Novosibirsk State University, Russian Federation
Title : Effective B2O3 modified Ni/Al2O3 co precipitated catalysts for waste cooking oil transformation into green diesel
Eleana Kordouli, University of Patras, Greece
Title : Application of vanadium, tantalum and chromium single-site zeolites in heterogeneous catalysis
Stanislaw Dzwigaj, Sorbonne University, France
Title : Personalized and precision medicine (ppm) as a unique healthcare model through bi-odesign-inspired bio- and chemical engineering applications to secure the human healthcare and biosafety: Engineering of biocatalysts - from evolution to creation
Sergey Suchkov, N.D. Zelinskii Institute for Organic Chemistry of the Russian Academy of Sciences, Russian Federation
Title : Sonophotocatalysis in advanced oxidation process: A short review
Collin G Joseph, University Malaysia Sabah, Malaysia