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Thu Apr 08, 2010 9:42 am
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Sleeper!
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Joined: 04 Jun 2005
Posts: 80

Post subject: 117 Reply with quote

To celebrate the 'discovery' of 117:

IONIC BONDING
Quote:
"An example of ionic bonding is electron transfer between a noble gas and a metal. The crystalline compound bond is referred to as lattice energy such as in a metal aromaticity. Ionic bonds can conduct electricity in solutions, in solid and in molten form." ~ Sleeper!


aromaticity - What a cool word... so check out what Wiki says about this type of IONic bond:

AROMATICITY
Quote:
"In organic chemistry, the structures of some rings of atoms are unexpectedly stable. Aromaticity is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. It can also be considered a manifestation of cyclic delocalization and of resonance." ~ Wikipedia


'Stabilization stronger than conjugation!'

So the question seems to be, are you:

A) an unsaturated bond? or
B) an empty orbital?

(Bob and Connie are obviously the lone pair)
 
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Thu Apr 08, 2010 11:42 am
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Sleeper!
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Joined: 04 Jun 2005
Posts: 80

Post subject: Noble Gas Indeed Reply with quote

A manifestation of cyclic delocalization and of resonance.


Har - Science, the best poetry EVER!

...Bob THAT Bob! (bob as a verb)
 
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Sat Apr 10, 2010 9:28 am
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EatThatQuestion



Joined: 05 Feb 2009
Posts: 126

Post subject: more aromatic poetry + 22 continuity ... Reply with quote

Importance of aromatic compounds

Aromatic compounds are important in industry. Key aromatic hydrocarbons of commercial interest are benzene, toluene, ortho-xylene and para-xylene. About 35 million tonnes are produced worldwide every year. They are extracted from complex mixtures obtained by the refining of oil or by distillation of coal tar, and are used to produce a range of important chemicals and polymers, including styrene, phenol, aniline, polyester and nylon.

Other aromatic compounds play key roles in the biochemistry of all living things. Three aromatic amino acids phenylalanine, tryptophan, and tyrosine, each serve as one of the 20 basic building blocks of proteins. Further, all 5 nucleotides (adenine, thymine, cytosine, guanine, and uracil) that make up the sequence of the genetic code in DNA and RNA are aromatic purines or pyrimidines. As well as that, the molecule haem contains an aromatic system with 22 π electrons. Chlorophyll also has a similar aromatic system.
 
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Sun Apr 11, 2010 1:04 pm
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Sleeper!
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Joined: 04 Jun 2005
Posts: 80

Post subject: Reply with quote

NICE!!

A haem is a prosthetic group that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin.

heterocyclic organic ring
 
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Mon Apr 12, 2010 4:49 am
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octavian



Joined: 22 Jul 2006
Posts: 1042

Post subject: Reply with quote

[youtube]http://www.youtube.com/watch?v=5pErq_YRC4s&feature=related[/youtube]
 
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