coordination covalent bond

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• Coordinate covalent bond — [ ammonium ion] A coordinate covalent bond (formerly also known as dative bond [GoldBookRef | file = D01523 | title = dative bond] ) is a description of covalent bonding between two atoms in which both electrons shared in the bond come from the… …   Wikipedia

• 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

• Covalent radius of fluorine — The covalent radius of fluorine is a measure of the size of a fluorine atom; it is approximated at about 60 picometres. Since fluorine is a relatively small atom with a large electronegativity, its covalent radius is difficult to evaluate. The… …   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

• Covalent radius — Types of radii Atomic radius Ionic radius Covalent radius Metallic radius Van der Waals radius edit The covalent radius, rcov, is a measure of the size of an atom that forms part of one covalent bond. It is usually measured either in …   Wikipedia

• Covalent organic framework — The design and synthesis of crystalline extended organic structures in which the building blocks are linked by strong covalent bonds are core concepts of covalent organic frameworks (COFs). COFs are porous, and crystalline, and made entirely from …   Wikipedia

• Coordination polymer — A coordination polymer is an inorganic or organometallic polymer structure containing metal cation centers linked by ligands, extending in an array. It can also be described as a polymer whose repeat units are coordination complexes. Similar… …   Wikipedia

• coordination number — Crystall. the number of anions surrounding a single cation in a stable crystal structure. [1905 10] * * * ▪ chemistry also called  Ligancy,         the number of atoms, ions, or molecules that a central atom or ion holds as its nearest neighbours …   Universalium

• Dipolar bond — A dipolar bond,[1] also known as dative covalent bond[2] or coordinate bond[3] is a kind of 2 centre, 2 electron covalent bond in which the two electrons derive from the same atom. Typically, a dipolar bond is formed when a Lewis base donates a… …   Wikipedia

• Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …   Wikipedia

• coordinate bond — noun a covalent bond in which both electrons are provided by one of the atoms • Syn: ↑dative bond • Hypernyms: ↑covalent bond * * * noun or coordinate covalence : a covalent bond typical of coordination complexes that is held to consist of a pair …   Useful english dictionary