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Wayward Black Bear Returned Home: Credit: Boise runner, Alexander Ford, snapped Blackie on Aug 22.     After a short visit to the city of trees and the Fort Boise area, a...

Just So You Know: Recently Gabriela Solano and Alvin Menezes have joined our HR team. Initially, they will be staffing our internal positions and then p...

Solvent Effects and SN2 and SN1 reactions: Nucleophilic Substitution SN2 reactions and solvent effects Polar aprotic solvents – solvents that do not have acidic proton such as DMSO, DMF, CH3CN, HMPA - accelerate the rate of SN2 reactions by solvating the cation thus making the nucleophile more available to react. On the contrary, protic solvents such as alcohols or amines decrease the rate of SN2 reactions since they tend to solvate nucleophiles (Fig. 1). The partial positive charge that exists in the O-H hydrogens solvate the negative charge of the nucleophile (Nu:-).Solvated nucleophiles are held tightly and are unable to react with the electrophilic substrates – compounds that have leaving group. Fig. 1: Partially positively charged hydrogens from polar O-H bonds solvate partially negative charge of the nucleophile. Solvated nucleophiles – as the one shown above – are unable to react with electrophilic substrates. The effect of solvents on the rate of SN2 nucleophilic substit...

Solvent Effects and SN2 and SN1 reactions: Nucleop...: S N 2 reactions and solvent effects Polar aprotic solvents – solvents that do not have acidic proton such as DMSO, DMF, CH 3...

Chemistry in our life: Loudspeakers in your window: 08 July 2011 Korean scientists have used graphene sheets to make a transparent and lightweight loudspeaker which, they say, can be attache... This lesson will introduce you the student to basic chemistry principles. An understanding of this basic information will allow you to learn the more advanced topics in your course lectures. This lesson focuses on a number of areas related to basic Chemistry. You should review each page in order as they build upon one another. Many of these topics will be review. Others may be new to you. Either way you will learn the fundamentals of chemistry needed in this course. ATOMS AND IONS Atoms Atoms are the basic unit of chemistry. They consist of 3 smaller things: *.Protons- these are positively charged (+) *.Electrons- these are negatively charged (-) *.Neutrons- these have no charge These 3 smaller particles are arranged in a particular way. In the center is theNucleuswhere you find the p...

Chemistry in our life: Pi-stacking better without the aromatics? : 08 July 2011 Scientists in the US have discovered that electrons confined to their double bonds can sometimes deliver stronger pi-stacking...

Online Islamic Books Library: Zina (Adultery) | Solution In Islam : Zina is an immoral act which is condemned by all the religious scriptures.This act is also disliked by all philosophers and intellectuals...

Analytics Blog: New: AdWords Reports for App download campaigns : Today we’re happy to announce a deeper integration between AdWords and Google Analytics for Mobile Apps that will help advertisers make fa...

Analytics Blog: New tools to grow your mobile app business : Today at the Game Developers Conference in San Francisco we will be announcing two key launches powered by Google Analytics and Google Ta...