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Oxazole is the parent compound for a vast class of heterocyclic aromatic organic compounds.These are azoles with an oxygen and a nitrogen separated by one carbon. [4] Oxazoles are aromatic compounds but less so than the thiazoles.
Lewis structure of a water molecule. Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
Isoxazoles also form the basis for a number of drugs, [9] including the COX-2 inhibitor valdecoxib and a neurotransmitter agonist AMPA.A derivative, furoxan, is a nitric oxide donor.
Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1]
The skeletal formula of the antidepressant drug escitalopram, featuring skeletal representations of heteroatoms, a triple bond, phenyl groups and stereochemistry. The skeletal formula, line-angle formula, bond-line formula or shorthand formula of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some details of ...
The most common Lewis bases are anions. The strength of Lewis basicity correlates with the pK a of the parent acid: acids with high pK a 's give good Lewis bases. As usual, a weaker acid has a stronger conjugate base. Examples of Lewis bases based on the general definition of electron pair donor include: simple anions, such as H − and F −
Chelating macrocyclic structures of interest in inorganic and supramolecular chemistry, an example array. A, the crown ether , 18-crown-6; B, the simple tetra-aza chelator , cyclam ; C, an example porphyrin , the unsubstituted porphine ; D, a mixed amine / imine , the Curtis macrocycle ; E, the related enamine /imine Jäger macrocycle, and F ...