Definitions for sandwich compound
sand·wich com·pound

WiktionaryRate this definition:0.0 / 0 votes

1. sandwich compoundnoun

   any compound in which a metal atom is located between the faces of two planes of atoms, especially between two rings

WikipediaRate this definition:0.0 / 0 votes

1. Sandwich compound

   In organometallic chemistry, a sandwich compound is a chemical compound featuring a metal bound by haptic, covalent bonds to two arene (ring) ligands. The arenes have the formula CnHn, substituted derivatives (for example Cn(CH3)n) and heterocyclic derivatives (for example BCnHn+1). Because the metal is usually situated between the two rings, it is said to be "sandwiched". A special class of sandwich complexes are the metallocenes. The term sandwich compound was introduced in organometallic nomenclature in 1956 in a report by J. D. Dunitz, L. E. Orgel and R. A. Rich, who confirmed the structure of ferrocene by X-ray crystallography. The correct structure, in which the molecule features an iron atom sandwiched between two parallel cyclopentadienyl rings, had been proposed several years previously by Robert Burns Woodward and, separately, by Ernst Otto Fischer. The structure helped explain puzzles about ferrocene's conformers. This result further demonstrated the power of X-ray crystallography and accelerated the growth of organometallic chemistry.

WikidataRate this definition:5.0 / 1 vote

1. Sandwich compound

   In organometallic chemistry, a sandwich compound is a chemical compound featuring a metal bound by haptic covalent bonds to two arene ligands. The arenes have the formula CnHn, substituted derivatives and heterocyclic derivatives. Because the metal is usually situated between the two rings, it is said to be "sandwiched." A special class of sandwich complexes are the metallocenes. The term sandwich compound was introduced in organometallic nomenclature in during the mid-1950s in a report by J.D. Dunitz, L.E. Orgel and R.A. Rich, who confirmed the structure of ferrocene by X-ray crystallography. The correct structure had been proposed several years previously by Robert Burns Woodward. The structure helped explain puzzles about ferrocene's conformers, the molecule features an iron atom sandwiched between two parallel cyclopentadienyl rings. This result further demonstrated the power of X-ray crystallography and accelerated the growth of organometallic chemistry.

How to pronounce sandwich compound?

1. Alex

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Numerology

1. Chaldean Numerology

   The numerical value of sandwich compound in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of sandwich compound in Pythagorean Numerology is: 2

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Sandwich_Compound
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Sandwich_Compound
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=sandwich compound