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  2. Electrophilic aromatic directing groups - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.

  3. Captodative effect - Wikipedia

    en.wikipedia.org/wiki/Captodative_effect

    Delocalizing the radical ion stabilizes the transition state structure. As a result, the energy of activation decreases, enhancing the rate of the overall reaction. According to the captodative effect, the rate of a reaction is the greatest when both the EDG and EWG are able to delocalize the radical ion in the transition state structure. [7]

  4. Electronic effect - Wikipedia

    en.wikipedia.org/wiki/Electronic_effect

    An electric effect influences the structure, reactivity, or properties of a molecule but is neither a traditional bond nor a steric effect. [1] In organic chemistry, the term stereoelectronic effect is also used to emphasize the relation between the electronic structure and the geometry (stereochemistry) of a molecule.

  5. EDG - Wikipedia

    en.wikipedia.org/wiki/EDG

    Download as PDF; Printable version; In other projects ... Appearance. move to sidebar hide. EDG may refer to: Science and medicine Electron donating group, a ...

  6. List of mineral symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_mineral_symbols

    A combination considered characteristic of the mineral name, for example: ewingite: Ewg and neighborite: Nbo. A selection of letters expressing components of the name, for example: adranosite = Arn and hellandite: Hld. Lettered abbreviations when prefixes are present, for example: chlorocalcite = Ccal and nickelzippeite: Nizip.

  7. EWG Releases New "Dirty Dozen" Guide to Food Additives - AOL

    www.aol.com/food/ewg-releases-new-dirty-dozen...

    You may be familiar with the Environmental Working Group (EWG) because they release a list of the most pesticide-filled produce every year called The Dirty Dozen. They also establish the produce ...

  8. National Mapping and Resource Information Authority - Wikipedia

    en.wikipedia.org/wiki/National_Mapping_and...

    The Philippines' National Mapping and Resource Information Authority (Filipino: Pambansang Pangasiwaan sa Pagmamapa at Dulugang Kaalaman), abbreviated as NAMRIA, is an agency of the Philippine government under the Department of Environment and Natural Resources responsible for providing the public with mapmaking services and acting as the central mapping agency, depository, and distribution ...

  9. 50 People Who Got Annoyed At Their Pets, But Then ... - AOL

    www.aol.com/pet-annoys-then-remember-m-020007506...

    Image credits: nani.mtz For many owners, having a pet is somewhat like having a child. You love your furry little friend unconditionally, and you are responsible for their wellbeing.