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  2. Xenon tetrafluoride - Wikipedia

    en.wikipedia.org/wiki/Xenon_tetrafluoride

    Its structure was determined by both NMR spectroscopy and X-ray crystallography in 1963. [6] [7] The structure is square planar, as has been confirmed by neutron diffraction studies. [8] According to VSEPR theory, in addition to four fluoride ligands, the xenon center has two lone pairs of electrons. These lone pairs are mutually trans.

  3. Xenon oxytetrafluoride - Wikipedia

    en.wikipedia.org/wiki/Xenon_oxytetrafluoride

    2 O in the following steps: XeOF 4 + H 2 O → XeO 2 F 2 + 2 HF XeO 2 F 2 + H 2 O → XeO 3 + 2 HF. The XeO 3 formed is a dangerous explosive, decomposing explosively to Xe and O 2: 2 XeO 3 → 2 Xe + 3 O 2. In its liquid form, XeOF 4 exhibits amphoteric behaviour, forming complexes with both strong Lewis bases like CsF and strong Lewis acids ...

  4. VSEPR theory - Wikipedia

    en.wikipedia.org/wiki/VSEPR_theory

    For example, the double-bond carbons in alkenes like C 2 H 4 are AX 3 E 0, but the bond angles are not all exactly 120°. Likewise, SOCl 2 is AX 3 E 1, but because the X substituents are not identical, the X–A–X angles are not all equal. Based on the steric number and distribution of Xs and Es, VSEPR theory makes the predictions in the ...

  5. Square planar molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Square_planar_molecular...

    Structure of cisplatin, an example of a molecule with the square planar coordination geometry. In chemistry, the square planar molecular geometry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds. As the name suggests, molecules of this geometry have their atoms positioned at the corners.

  6. Tetramethylammonium pentafluoroxenate - Wikipedia

    en.wikipedia.org/wiki/Tetramethylammonium...

    The anion is planar, with the fluorine atoms in a slightly distorted pentagonal coordination (Xe–F bond lengths 197.9–203.4 pm, and F–X–F bond angles 71.5°–72.3°). [1] Other salts have been prepared with sodium, caesium and rubidium, and vibrational spectra show that these contain the same planar ion. [ 1 ]

  7. Molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Molecular_geometry

    Geometry of the water molecule with values for O-H bond length and for H-O-H bond angle between two bonds. Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It includes the general shape of the molecule as well as bond lengths, bond angles, torsional angles and any other geometrical parameters that ...

  8. Three-center four-electron bond - Wikipedia

    en.wikipedia.org/.../Three-center_four-electron_bond

    This bonding scheme is succinctly summarized by the following two resonance structures: I—I···I − ↔ I − ···I—I (where "—" represents a single bond and "···" represents a "dummy bond" with formal bond order 0 whose purpose is only to indicate connectivity), which when averaged reproduces the I—I bond order of 0.5 obtained ...

  9. Tetrahedral molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Tetrahedral_molecular_geometry

    In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron.The bond angles are arccos(− ⁠ 1 / 3 ⁠) = 109.4712206...° ≈ 109.5° when all four substituents are the same, as in methane (CH 4) [1] [2] as well as its heavier analogues.