Navigation Links
Chemists Discover Cation Considered Too Unstable To Exist ,,

Organic chemistry textbooks will need to be revised to recognize a chemical species that chemists have discovered. The species - pentamethylcyclopentadienyl cation (a positively charged ion) - was thought not to exist for long because theory said it was unstable. //

"I’ve said this molecule is unstable and doesn’t exist dozens of times in organic chemistry class, but, as it turns out, the molecule had different ideas," said Joseph B. Lambert, Clare Hamilton Hall Professor of Chemistry at Northwestern. He and graduate student Lijun Lin discovered that the cation is stable in the solid state for weeks at room temperature and in solution.

The cyclopentadienyl cation is a common textbook example of an antiaromatic molecule, a molecule so electronically unstable and, therefore, extremely reactive that it should not exist for any length of time. Lambert believes the cation now should be described as nonaromatic.

Lambert and Lin discovered the molecule when trying to figure out how to make stable organic cations in the laboratory. When Lin came to Lambert with the crystal structure of a molecule other than the one expected, Lambert quickly recognized the structure as an example of the elusive cyclopentadienyl cation of textbook fame. Lambert and Lin currently are studying the chemistry of the pentamethylcyclopentadienyl cation by carrying out reactions with the cation to learn more about its properties
'"/>




Page: 1

Related medicine news :

1. Chemists prepare for face-off with manufacturers
2. Jharkhand Chemists to Boycott Viagra
3. Stricter Norms for Chemists in Punjab to Curb Addiction
4. New Way to "See" Genes, Evaluate Effectiveness of Gene Therapies Discovered
5. Discovery of bone gene
6. Discovering cholesterol-absorbing genes
7. Origin Of SARS Virus Discovered
8. Another Cause of Thyroid Cancer Discovered
9. Details Of Heart Failure Discovered
10. New Discovery May Help Treat Infertility
11. New Discovery to Increase Survival of Breast cancer Patients
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... , ... October 13, 2017 , ... Global Healthcare Management’s ... Alexandria Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s ... The fun run is geared towards children of all ages; it is a ...
(Date:10/13/2017)... , ... October 13, 2017 , ... “America On The ... identity. “America On The Brink” is the creation of published author, William Nowers. ... great-grandchildren. As a WWII veteran, he spent thirty years in the Navy. ...
(Date:10/12/2017)... ... 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ), one of the ... new design of the shoulder pad. The shoulder pad provides optimal support and ... pain while using cold therapy. By utilizing ice and water that is circulated from ...
(Date:10/12/2017)... ... 2017 , ... HMP , a leader in healthcare events and education, today ... Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & ... award competition recognizes editorial and design excellence across a range of sectors. This year’s ...
(Date:10/12/2017)... ... October 12, 2017 , ... In the United ... year. In some states—like New York, New Jersey, Massachusetts, Texas, Virginia, Connecticut, and ... havens have extremely low property-tax rates, which contributes to the relatively lower cost ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... CHICAGO , Sept. 28, 2017 Hill-Rom ... quarter 2017 earnings conference call and webcast on Friday, ... 8:00 a.m. (EDT) and ending at approximately 8:30 a.m. ... to discussing the company,s 2017 financial performance and guidance ... growth opportunities, initiatives to enhance operational performance, and long-range ...
(Date:9/25/2017)... --  Montrium , an industry leader in powerful ... Trial Master Files & Inspection Readiness Conference ( ... Services has selected eTMF Connect to ... a leading European contract research organization (CRO), will ... enable greater collaboration with sponsors, improve compliance and ...
(Date:9/22/2017)... Sept. 22, 2017 AVACEN Medical (AVACEN) announced ... now successfully helping those with the widespread pain associated ... diagnosed Amanda in Essex, England ... my hair, experiencing no sleep at all, tremendous pain, ... I cannot recommend [the AVACEN 100] enough, how this ...
Breaking Medicine Technology: