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Topic: Double bond

Related Topics

Covalent bond

Covalent

Bond dissociation energy

Ionic bond

Chemical bond

Metallic bond

Disulfide bond

Alkene

Covalent radius

Fatty acid

Aromatic hydrocarbon

Benzene ring

Monounsaturated fat

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	Double Bond (Site not responding. Last check: 2007-10-20)
		In a double bond two pairs of electrons are shared between two adjacent atoms.
		The double bond in ethene is formed between the two carbon atoms.
		Double bond: a bond in which two pairs of electrons are shared between two atoms.
	www.pictureprobe.com /bond/double-bond.html (201 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		Covalent bonding is a form of chemical bonding characterized by the sharing of one or more pairs of electrons, by two atoms, in order to produce a mutual attraction; atoms tend to share electrons, so as to fill their outer electron shells.
		Their work was based on the valence bond model, which assumes that a chemical bond is formed when there is good overlap between the atomic orbitals of participating atoms.
		Normally the double bond is of the cis- or Z-configuration, although some fatty acids with trans- or E-double bonds are known.
	www.informationgenius.com /encyclopedia/c/co/covalent_bond.html (883 words)

	Carbon-carbon double bond - Wikipedia, the free encyclopedia
		A carbon to carbon double bond refers to the bond state of the carbon carbon atom, which is bonded by two types of bonds together, which is the sigma bond and the pi bond.
		A carbon-carbon double bond is shorter and stronger than that of its single counterpart.
		This bond is the main component of the alkene functional group.
	en.wikipedia.org /wiki/Carbon-carbon_double_bond (93 words)

	Peptide bond - Wikipedia, the free encyclopedia
		The C-N bond has a partial double bond character (with the Nitrogen atom attaining a partial positive charge and the oxygen atom a partial negative charge) and the molecule can normally not rotate around this bond.
		The peptide bonds in proteins are metastable, meaning that in the presence of water they will break spontaneously, releasing about 10 kJ/mol of free energy, but this process is extremely slow.
		The wavelength of absorbance for a peptide bond is 220-280nm.
	en.wikipedia.org /wiki/Peptide_link (257 words)

	Carpet Tile Installation
		The double bond underlay should be stuck to the sub floor using a pressure sensitive adhesive such as Roberts 656 Carpet Tile and Double Bond Underlay Adhesive.
		The double bond underlay is adhered to the sub floor using Roberts 656 Carpet Tile and Double Bond Underlay Adhesive.
		The carpet tiles are adhered the double bond underlay using Roberts 656 Carpet Tile and Double Bond Underlay Adhesive.
	www.rlapolymers.com.au /rob_a11-11_carp_tile_inst.html (901 words)

	Pi Bonds
		The combination of a sigma and a pi bond between the same two carbon atoms is a double bond.
		A double bond consists of a sigma bond (using hybrid orbitals) and a pi bond (using p orbitals).
		These models might lead you to think that double bonds are formed by some kind of process, in which normal single bonds are bent around to form a curved bond, but that is just not true at all.
	dl.clackamas.cc.or.us /ch106-02/pibonds.htm (753 words)

	bonding in carbonyl compounds - the carbon oxygen double bond
		Where the carbon-oxygen double bond, C=O, occurs in organic compounds it is called a carbonyl group.
		We are going to look at the bonding in methanal, but it would equally apply to any other compound containing C=O. The interesting thing is the nature of the carbon-oxygen double bond - not what it's attached to.
		This distortion in the pi bond causes major differences in the reactions of compounds containing carbon-oxygen double bonds like methanal compared with compounds containing carbon-carbon double bonds like ethene.
	www.chemguide.co.uk /basicorg/bonding/carbonyl.html (542 words)

	Double Bond Polyurethane, Urethane Rubber Custom Molded Parts
		Double Bond Polyurethane is a unique material that offers the elasticity of rubber combined with the toughness and durability of metal.
		Because Double Bond polyurethane is available in a very broad hardness range (eraser-soft to bowling-ball hard), it allows the engineer to replace rubber, plastic and metal with the ultimate in abrasion-resistance and physical properties.
		The hardness of most practical products of "Double Bond" ranges between 20 durometer A and 75 durometer D. The D scale is used to measure hardness greater than 95A.
	www.polyurethane-1.com /urethane-rubber.htm (209 words)

	Covalent Bond (Site not responding. Last check: 2007-10-20)
		Covalent bonds are formed as a result of the sharing of one or more pairs of bonding electrons.
		A single co-valent bond would be the sharing of two electrons between the two bonded atoms.
		The dash is symbolic of the bonding pair.
	members.aol.com /profchm/covalent.html (421 words)

	covalent bonding - double bonds
		A double covalent bond is where two pairs of electrons are shared between the atoms rather than just one pair.
		An ordinary line represents a bond in the plane of the screen (or the paper if you've printed it), a broken line is a bond going back away from you, and a wedge shows a bond coming out towards you.
		All double bonds (whatever atoms they might be joining) will consist of a sigma bond and a pi bond.
	www.chemguide.co.uk /atoms/bonding/doublebonds.html (1004 words)

	AW: Carbon, Double-Bond
		Bond geometry: trigonal (three equidistant orbitals in a flat plane)
		Notes: this carbon has the same properties as the single-bonded carbon, except that two of the four orbitals are bonding in the same direction, forming a "double bond." This double bond is about twice as strong as a single bond, and does not allow rotation to occur.
		While you're here, notice how the double bond makes the carbon bonding structure into 3 directions, called trigonal pyrimidal (or a "3-sided pyramid").
	www.plasticatomics.com /carbondb.html (122 words)

	Shell Chemicals - Glossary & Trademarks (Site not responding. Last check: 2007-10-20)
		Olefins are aliphatic hydrocarbons with one or more double bonds along the chain.
		The higher olefins have chains of up to 20 or more carbon atoms, and generally have the double bond between the first two carbons of the chain.
		These are based on carbon compounds and form the backbone of the petrochemicals industry, while inorganic chemicals are non-carbon chemicals, such as mineral acids, alkalis, chlorine, hydrogen peroxide and various salts.
	www.shellchemicals.com /glossary/1,1098,1159,00.html (1593 words)

	Polymer Engineering Double Bond System
		Provide normal manufacturers warranty, extendable for a period of 5 years, covering replacement of adhesive materials together with reimbursement of reasonable reinstallation charges to the installing contractor, if adhesive bond failure is determined within the warranted period, providing Polymer Engineering’s conditions are met regarding recommended equipment, materials and techniques.
		Adhesive shall be Polymer Engineering 900 Pressure Sensitive Adhesive or Polymer Engineering 999 Pressure Sensitive Adhesive for bonding the double bond underlay to the subfloor.
		After bonding the carpet to the floor, open the seams and insert the Polymer Engineering Dual Bond/Direct Stick Carpet Tape for tufted and woven carpets, the full length of each seam and join the carpet using a carpet seaming iron as per Polymer Engineering published instructions.
	www.rlapolymers.com.au /13_11poly_doublebond.html (597 words)

	double bond - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "double bond" is defined.
		noun: a covalent bond in which two pairs of electrons are shared between two atoms
		Phrases that include double bond: carbon-carbon double bond isomerases, carbon carbon double bond isomerases, conjugated double bond
	www.onelook.com /?w=double+bond (168 words)

	Anti-Grain Geometry -
		thickness(thickness); } void rewind(unsigned) { double dx, dy, dx1, dy1, dx2, dy2; switch(m_style) { case bond_wedged_solid: m_solid_wedge.
		rewind(0); break; } } unsigned vertex(double* x, double* y) { unsigned flag = agg::path_cmd_stop; switch(m_style) { case bond_wedged_solid: return m_solid_wedge.
		clear(agg::rgba(1,1,1)); const moleculeand mol = m_molecules[m_cur_molecule]; unsigned i; double min_x = 1e100; double max_x = -1e100; double min_y = 1e100; double max_y = -1e100; for(i = 0; i < mol.
	www.antigrain.com /demo/mol_view.cpp.html (792 words)

	Double Bond - February 1998 Web Version
		Double Bond was now being published electronically and available on the
		Bond to ACS members who specifically request a printed copy.
		The Double Bond is published monthly from September through June by the
	www2.canisius.edu /~dblbond/db298.html (1259 words)

	AllRefer.com - saturation, of an organic compound (Chemistry) - Encyclopedia
		saturation, of an organic compound, condition occurring when its molecules contain no double or triple bonds and thus cannot undergo addition reactions.
		A compound is called unsaturated if it can undergo addition reactions.
		), the carbon-carbon double bond readily reacts, e.g., with hydrogen to form ethane.
	reference.allrefer.com /encyclopedia/S/satura1.html (156 words)

	Double Bond - Sept. 2001 Web Version
		Views expressed in the editorials are those of the authors and do not necessarily represent the official position of the Western New York Section of the American Chemical Society.
		All materials to appear in the next issue of the Double Bond must be received by the Editor, in care of the Chemistry Department, Canisius College, 2001 Main Street, Buffalo, New York 14208, by the FIRST day of the month.
		The Double Bond is published monthly from September through June by the WNY Section of the ACS.
	membership.acs.org /w/wny/db2001/db0901.html (588 words)

	The Double Bond (Site not responding. Last check: 2007-10-20)
		Nine issues of The Double Bond were published in 2003, with the December issue on hold for January dinner meeting information.
		One to two weeks are needed to compile, print, and deliver issues to the post office.
		She is paid $165 per issue of the Double Bond, more if individual committees pay her for additional secretarial duties pertaining to their work.
	membership.acs.org /w/wny/yir_2003/double_bond.htm (371 words)

	Amazon.co.uk: Books: The Double Bond: Primo Levi, A Biography (Site not responding. Last check: 2007-10-20)
		Amazon.co.uk: Books: The Double Bond: Primo Levi, A Biography
		Here, for the first time, we have a biography that does him justice.
		Hilary Spurling writes: ‘The Double Bond has the pace and grip of a thriller.
	www.amazon.co.uk /exec/obidos/ASIN/0670883336 (590 words)

	Double Bond - dec 00 Web Version
		Several activities of the section have been recognized with ACS Awards (see October issue of Double Bond).
		I do want to thank all the members of the committee for their devoted support and time to our section.
		If you have any suggestion, comments, or would like to volunteer to work in one of our standing committees, please contact one of the officers (listed in the Double Bond).
	www2.canisius.edu /~dblbond/db01200.html (1396 words)

	Science: Chemistry: Organic Chemistry: Chemistry Rules - Open Site
		Markovnikov's rule states that with the addition of HX, H2O, or ROH to an alkene, the higher priority substituent adds to the more highly substituted carbon of the carbon-carbon double bond, and the hydrogen adds to the carbon that has more hydrogens.
		In elimination reactions, the major reaction product is the alkene with the more highly substituted double bond.
		This most-substituted alkene is also the most stable.
	open-site.org /Science/Chemistry/Organic_Chemistry/Chemistry_Rules (92 words)

	Macromolecular Compounds Obtained By Reactions Only Involving Carbon-to-carbon Unsaturated Bonds - Industry Patent ...
		Macromolecular Compounds Obtained By Reactions Only Involving Carbon-to-carbon Unsaturated Bonds - Industry Patent Mapping Report - Research and Markets - Market Research Reports
		Macromolecular Compounds Obtained By Reactions Only Involving Carbon-to-carbon Unsaturated Bonds - Industry Patent Mapping Report
		Macromolecular Compounds Obtained Otherwise Than By Reactions Only Involving Carbon-to-carbon Unsaturated Bonds - Industry Patent Mapping Report
	www.researchandmarkets.com /reportinfo.asp?report_id=226231 (730 words)

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