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Topic: Coordinate covalent bond

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Covalent bond

Ionic bond

Hydrogen bond

Chemical bond

Metallic bond

Molecular hydrogen

Lewis acid

Atom

Boron trifluoride

Carbon monoxide

Aluminum chloride

Nonpolar

Azimuthal quantum number

Linus Pauling

Chloride

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	NationMaster - Encyclopedia: Coordinate covalent bond
		Coordinate covalent bonds are formed when a Lewis base (an electron donor or giver) donates a pair of electrons to a Lewis acid (an electron accepter) and the resultant compound is then called an adduct (a compound formed by the addition reaction between two molecules).
		Covalently bonded hydrogen and carbon in a molecule of methane.
		Covalent bonding is an intramolecular form of chemical bonding characterized by the sharing of one or more pairs of electrons between two components, producing a mutual attraction that holds the resultant molecule together.
	www.nationmaster.com /encyclopedia/Coordinate-covalent-bond (1459 words)

	Coordinate covalent bond - Wikipedia, the free encyclopedia
		A coordinate covalent bond (also known as dative covalent bond) is a special type of covalent bond in which the shared electrons come from one of the atoms only.
		Coordinate covalent bonds are formed when a Lewis base (an electron donor or giver) donates a pair of electrons to a Lewis acid (an electron accepter) and the resultant compound is then called an adduct (a compound formed by the addition reaction between two molecules).
		Coordinate bonds form and the resulting compound is called a coordination complex, while the electron donors are called ligands.
	en.wikipedia.org /wiki/Coordinate_covalent_bond (434 words)

	Covalent bond - Wikipedia, the free encyclopedia
		Covalently bonded hydrogen and carbon in a molecule of methane.
		Covalent bonding is an intramolecular form of chemical bonding characterized by the sharing of one or more pairs of electrons between two components, producing a mutual attraction that holds the resultant molecule together.
		Pure covalent bonds (which are usually non-soluble, are electrically non-conductive, and tend to exist as individual molecules), and ionic bonds (which are soluble, are electrically conductive when molten or in solution, and, in general, tend to exist in a crystalline form) are on two opposite ends of the spectrum and have different properties.
	en.wikipedia.org /wiki/Covalent_bond (1258 words)

	Coordinate covalent bond - Biocrawler
		Coordinate covalent bonds are formed when a Lewis base (an electron donor or giver) donates a pair of electrons to a Lewis acid (an electron accepter) and the resultant compound is then called an adduct.
		Coordinate bonds can be found in many different substances, such as in simple molecules like carbon monoxide (CO), which contains one coordinate bond and two normal covalent bonds between the carbon atom and the oxygen atom, or the ammonium ion (NH), where a coordinate bond is formed between a proton (a H
		Coordinate bonding can also be found in coordination complexes involving metal ions, especially if they are transition metal ions.
	www.biocrawler.com /encyclopedia/Coordinate_covalent_bond (346 words)

	Covalent bond Summary
		Covalent bonds are formed due to the forces of electric attraction between atoms, for example, the covalent bond that forms between two fluorine atoms.
		Bond order is a term that describes the number of pairs of electrons shared between atoms forming a covalent bond.
		A special case is called a coordinate covalent bond, also known as a dative covalent bond, which occurs when one atom gives both of the electrons in the bond.
	www.bookrags.com /Covalent_bond (3466 words)

	ScienceDaily: Chemical bond (Site not responding. Last check: 2007-10-20)
		Weak chemical bonds are classically explained to be effects of polarity, or the lack of it, of strong bonds.
		The type of strong bond depends on the difference in electronegativity and the distribution of the electron path to the atoms that are bonded.
		Covalent bonding is a common type of bonding, in which the electronegativity difference between the bonded atoms is small or non-existent.
	www.sciencedaily.com /encyclopedia/chemical_bond (2840 words)

	C05-1-4-0-0-0-0:Types of chemical bonds (Site not responding. Last check: 2007-10-20)
		Ionic bonding is typically described to students as being the outcome of the transfer of electron(s) between two dissimilar atoms.
		A covalent chemical bond results from the sharing of electrons between two atoms with similar electronegativities A single covalent bond represent the sharing of two valence electrons (usually from two different atoms).
		A coordinate covalent bond (also called a dative bond) is formed when one atom donates both of the electrons to form a single covalent bond.
	www.cci.unl.edu /Teacher/NSF/C05/C05Mats/BondTypes.html (739 words)

	PROPERTIES OF COVALENT COMPOUNDS- COORDINATE COVALENT BOND
		Covalent compound exists as a separate molecules because they are formed by neutral atoms (they are electrically neutral) and the forces of attraction between these molecules is small.
		Chemical bond formed between two atoms due to sharing of electron pair in which only one atom provides shared pair of electron for the formation of bond, is known as coordinate covalent bond or dative bond.
		Formation of coordinate covalent bond is the property of atoms that have lone pair of electrons.
	www.citycollegiate.com /hybridization11.htm (208 words)

	Covalent bond: Encyclopedia topic (Site not responding. Last check: 2007-10-20)
		Covalent bonding is a form of chemical bonding (chemical bonding: in chemistry, a chemical bond is the force, which holds together atoms in molecules...
		Covalent bonding most frequently occurs between atoms with similar (high) electronegativities (electronegativities: electronegativity is a measure of the attraction that an atom has for the bonding pair...
		Covalent bonds are more common between non-metals, whereas ionic bonding is more common between a metal (metal: Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.) atom and a non-metal atom.
	www.absoluteastronomy.com /reference/covalent_bond (1121 words)

	Kids.net.au - Encyclopedia Chemical bond - (Site not responding. Last check: 2007-10-20)
		The types of bonding are differentiated by the extent to which electron density is localized or delocalized among the atoms of the substance.
		In the case of ionic bonding, electrons are more tightly associated with individual atoms, with net charges being assigned to discrete constituent atoms throughout the substance, with the nature of the interatomic (or more appropriately) interionic forces largely characterized by isotropic continuum electrostatic potentials.
		In contrast, the electron density distributions within covalent bonds are not so readily assigned to individual atoms, but are instead delocalized across the molecule in structures sometimes described as molecular orbitals, which may have more directed, anisotropic properties.
	www.kidsseek.com /encyclopedia-wiki/ch/Chemical_bond (358 words)

	StainsFile - Stain theory - Bond types
		Bonds that are 100% ionic or 100% covalent are not the usual.
		Covalent bonds are much less important, except in mordant dyeing in conjunction with coordinate bonds.
		With coordinate bonds, only one of the atoms donates electrons (two of them) and these are then shared by both of the atoms participating in the bond.
	stainsfile.info /StainsFile/theory/bonds.htm (565 words)

	Chemical Sciences: Electrons Shared: Covalent Bonding
		The bonding between Na or K and perchlorate must be different in kind from the bonding within perchlorate between Cl and O. Chemists now recognize three qualitatively different types of chemical bonding which are differentiated on the basis of the type of interaction of the electrons with other atoms.
		Coordinate covalent bonding is usually found in complex ions or molecules in which the central atom is a transition metal ion.
		Covalent bonding is so much more common in chemistry than is ionic bonding that the term chemical bonding is sometimes used in place of the term covalent bonding.
	www.psigate.ac.uk /newsite/reference/plambeck/chem1/p01241.htm (790 words)

	handouts, Chem 1 :MO theoryh of complexes
		The origin of the bond between a ligand and a metal is the sharing of a pair of electrons on the ligand between the ligand and the metal species.
		Each time a coordinate covalent bond is formed between a ligand and a metal, the sharing of the electrons results in a lowering of the electronic energy of the system.
		That is, if a seventh coordinate covalent bond were formed, the energy of repulsion between the seventh ligand and the rest of the complex exceeds the stabilization resulting from the additional bond.
	pages.pomona.edu /~wes04747/handout/mo_compl.htm (3502 words)

	Covalent bond - QuickSeek Encyclopedia (Site not responding. Last check: 2007-10-20)
		Covalent bonding is an intramolecular form of chemical bonding characterized by the sharing of one or more pairs of electrons between two species, producing a mutual attraction that holds the resultant molecule together.
		In their more useful applications, metals often engage in more exotic covalent bonding, such as those between a metal and the σ bond of molecular hydrogen, or between a metal and the π bond of an alkane or alkene.
		Heitler and London are credited with the first successful quantum mechanical explanation of a chemical bond, specifically that of molecular hydrogen, in 1927.
	covalentbond.quickseek.com (1203 words)

	HotBot Web Search for covalent
		A coordinate covalent bond (also known as dative bond) is a description of covalent bonding between two atoms in which both electrons shared...
		Covalent bonding is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms, or between atoms and
		Covalent modulation is the alteration of a protein's shape and function by covalent bonding of chemical groups to it.
	www.hotbot.com /?query=covalent&first=60&page=more (245 words)

	Media Portfolio
		A covalent bond is the result of attractive and repulsive forces between atoms.
		Polar covalent bonds are bonds in which the electrons are attracted more strongly by one atom than be the other.
		The bond between carbon and fluorine is considered highly polar, while the bonds between sodium and chlorine and rubidium and fluorine are considered ionic.
	wps.prenhall.com /wps/media/objects/2478/2537811/Media-Portfolio/chapter_05/05.html (1909 words)

	Polyatomic Ions
		Most are nonmetals bonded covalently to oxygen and have negative overall charge.
		First using all single bonds, hook all oxygens in the formula to the central nonmetal (Simple covalent or coordinate covalent bonds).
		A coordinate covalent bond is still a single bond.
	www.hccfl.edu /faculty/john_taylor/chm1025/polyions/polyionstudyguide.html (988 words)

	co-ordinate (dative covalent) bonding (Site not responding. Last check: 2007-10-20)
		A co-ordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom.
		The bonding between the two molecules is co-ordinate, using lone pairs on the chlorine atoms.
		Carbon monoxide can be thought of as having two ordinary covalent bonds between the carbon and the oxygen plus a co-ordinate bond using a lone pair on the oxygen atom.
	www.chemguide.co.uk /atoms/bonding/dative.html (1430 words)

	Valence Bond Theory and Hybridization (Site not responding. Last check: 2007-10-20)
		A single bond is composed of two bonding electrons, so the total number of electrons in the two overlapping atomic orbitals used to produce a bond cannot exceed two.
		A bond in which a lone pair is converted into a covalent bond is called a coordinate covalent bond.
		Coordinate covalent bonds are produced in Lewis acid-base reactions, which are discussed in Chapter 12.
	www.pearsoncustom.com /wertz/a_cd/cams/html/c06_structure/s05_vb.html (180 words)

	UNIT 3 - BONDING (Site not responding. Last check: 2007-10-20)
		When the two shared electrons forming a covalent bond are both donated by one of the atoms, this bond is called a coordinate covalent bond.
		The coordinate covalent bond is of importance in modern acid-base theories.
		Groups of atoms covalently bonded in a molecule may in turn be attracted to similar molecules or to ions.
	dwb.unl.edu /Chemistry/LearningObjectives/NY03.html (2068 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		One way to accomplish this attachment of the developed color signal to the cellulosic web is to use coordinate covalent bond formation between one component of a reactant pair that forms a colored dye, which is attached or fixed to the cellulosic fiber substrate and a second isolated component of the reactant pair.
		The coordinate covalent bond is formed when the mordant dye has an atom with a pair of unshared electrons and donates one of these electrons to an acceptor species (metal mordant), which has a free electronic orbital.
		Unlike the formation of a covalent bond in which both atoms contribute one electron to forming the bond, in the present invention the donor atom contributes both of the electrons needed to form the bond.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=98/41688.980924&ELEMENT_SET=DECL (2713 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		Covalent bonds: Bonds formed by sharing of electrons where both atoms contribute electrons for sharing.
		Coordination complex: The sphere which contains both the central metal ion attached to a group of ligands by coordinate covalent bonds.
		Coordination number: the number of ligand donor atoms that surround the central metal.
	users.stlcc.edu /gkrishnan/coordinate5.html (189 words)

	Chemical bond - (Site not responding. Last check: 2007-10-20)
		Early speculations into the nature of the chemical bond, from as early as the 12th century, supposed that certain types of chemical species were joined by a type of chemical affinity.
		By the mid 19th century, Edward Frankland, F.A. Kekule, A.S. Couper, A.M. Butlerov, and Hermann Kolbe, building on the theory of radicals, developed the theory of valency, originally called “combining power”, in which compounds were joined owing to an attraction of positive and negative poles.
		During the 1920s, theoretical physicists Heitler and London began applying quantum mechanics to the study of the chemical bond.
	psychcentral.com /psypsych/Chemical_bond (1878 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		Generally, for chelation to occur, all components are dissolved in solution and are either ionized or of appropriate electronic configuration in order for coordinate covalent bonding and/or ionic bonding between the ligand and the metal ion to occur.
		In this state, the chelate is completely satisfied by the bonding electrons and the charge on the metal atom (as well as on the overall molecule) is zero.
		However, at the a-amino group, the bond is typically a coordinate covalent bond.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/68087.010920&ELEMENT_SET=DECL (4598 words)

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