square planar complexes

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• Square planar molecular geometry — The square planar molecular geometry in chemistry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds. As the name suggests, molecules of this geometry have their atoms positioned at the… …   Wikipedia

• Metal salen complexes — Salens are a class of organic compounds used as ligands in coordination chemistry. This class of compounds are named after the simplest example, N,N bis(salicylidene)ethylenediamine, more commonly referred to as salen. Contents 1 Preparation 2… …   Wikipedia

• Coordination numbers and geometries of metal cyanide complexes — ▪ Table Coordination numbers and geometries of metal cyanide complexes electron configuration* metal ion cyanide complex geometry total number of valence electrons d2 Mo4+ [Mo(CN)8]4− dodecahedral 18 d3 Cr3+ [Cr(CN)6]3− octahedral 15 d4 Mn3+… …   Universalium

• coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction  any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …   Universalium

• Migratory insertion — A migratory insertion is a type of reaction in organometallic chemistry wherein two ligands on a metal complex combine. It is a subset of reactions that very closely resembles the insertion reactions, and both are differentiated by the mechanism… …   Wikipedia

• Complex (chemistry) — The term complex in chemistry is usually used to describe molecules or ensembles formed by the combination of ligands and metal ions. Originally, a complex implied a reversible association of molecules, atoms, or ions through weak chemical bonds …   Wikipedia

• Nickel(II) chloride — Hexahydrate IUPAC name Nickel(II) ch …   Wikipedia

• Coordination complex — Cisplatin, PtCl2(NH3)2 A platinum atom with four ligands In chemistry, a coordination complex or metal complex, is an atom or ion (usually metallic), bonded to a surrounding array of molecules or anions, that are in turn known as ligands or… …   Wikipedia

• Metal acetylacetonates — are coordination complexes derived from the acetylacetonate anion and metal ions, usually transition metals. The ligand acetylacetonate is often abbreviated acac. Typically both oxygen atoms bind to the metal to form a six membered chelate ring.… …   Wikipedia

• Nickel — This article is about the chemical element. For other uses, see Nickel (disambiguation). cobalt ← nickel → copper ↑ Ni ↓ Pd …   Wikipedia

• Electronic effect — An electronic effect influences the structure, reactivity, or properties of molecule but is neither a traditional bond nor a steric effect. [G. L. Miessler and D. A. Tarr “Inorganic Chemistry” 3rd Ed, Pearson/Prentice Hall publisher, ISBN 0 13… …   Wikipedia