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  2. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    [1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.

  3. Fluorine compounds - Wikipedia

    en.wikipedia.org/wiki/Fluorine_compounds

    The bond order has been described as 1.4 (intermediate between a single and double bond). It is isoelectronic with N 2. [80] Lewis dot diagram structures show three formal alternatives for describing bonding in boron monofluoride.

  4. Wikipedia : Manual of Style/Chemistry/Structure drawing

    en.wikipedia.org/.../Chemistry/Structure_drawing

    The configuration is extremely limited and post-processing is likely required. The only useful thing in "Format → Drawing settings..." is "Double bond spacing", which should be set to 18% of bond length, i.e. 5 pixels (integers only!) for the default 25-pixel bonds. Actual pixel sizes don't matter considering we will be doing an SVG report.

  5. Pentagonal bipyramidal molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Pentagonal_bipyramidal...

    Structure of iodine heptafluoride, an example of a molecule with the pentagonal-bipyramidal coordination geometry. In chemistry, a pentagonal bipyramid is a molecular geometry with one atom at the centre with seven ligands at the corners of a pentagonal bipyramid. A perfect pentagonal bipyramid belongs to the molecular point group D 5h.

  6. VSEPR theory - Wikipedia

    en.wikipedia.org/wiki/VSEPR_theory

    A bond of higher bond order also exerts greater repulsion since the pi bond electrons contribute. [10] For example in isobutylene, (H 3 C) 2 C=CH 2, the H 3 C−C=C angle (124°) is larger than the H 3 C−C−CH 3 angle (111.5°). However, in the carbonate ion, CO 2− 3, all three C−O bonds are equivalent with angles of 120° due to resonance.

  7. Molecular solid - Wikipedia

    en.wikipedia.org/wiki/Molecular_solid

    The hydrogen bonding between the acetic acid molecules partially guides the organization of the crystal lattice structure. [26] (a) A lewis dot structure with the partial charges and hydrogen bond denoted with blue dashed line. A ball and stick model of acetic acid with hydrogen bond denoted with blue dashed line.

  8. Electron pair - Wikipedia

    en.wikipedia.org/wiki/Electron_pair

    Gilbert N. Lewis introduced the concepts of both the electron pair and the covalent bond in a landmark paper he published in 1916. [1] [2] MO diagrams depicting covalent (left) and polar covalent (right) bonding in a diatomic molecule. In both cases a bond is created by the formation of an electron pair.

  9. Boron monofluoride - Wikipedia

    en.wikipedia.org/wiki/Boron_monofluoride

    One reported computed bond order for the molecule is 1.4, compared with 2.6 for CO and 3.0 for N 2. [5] Lewis dot diagram structures show three formal alternatives for describing bonding in boron monofluoride. BF is unusual in that the dipole moment is inverted with fluorine having a positive charge even though it is the more electronegative ...