2018年12月1日 · Pentagonal bipyramidal Post by ian_haliburton_1f » Sat Dec 01, 2018 12:13 am The textbook lists pentagonal bipyramidal as a possible molecular geometry, but I don’t believe that any of the examples we’ve done have had this shape.

2024年11月14日 · Re: What is an example of pentagonal bipyramidal Post by joliet3a » Fri Nov 15, 2024 12:08 am Iodine heptafluoride is an example of a substance with a pentagonal bipyramidal shape, where one atom occupies the top of the plane and one atom occupies the bottom of the plane, with the remaining five fluorine atoms occupying the middle plane ...

2019年11月18日 · Re: pentagonal bipyramidal 3 lone pairs? Post by Kellylin_4D » Mon Nov 18, 2019 8:39 am I learned in a step up that you continue to put it on the equatorial plane so that the trigonal part of the structure is now gone.

2021年11月20日 · In a trigonal bipyramidal shape, there are three atoms in the equatorial axis and two atoms on the y-axis. When you use three lone pairs in the trigonal bipyramidal electron geometry, the three lone pairs take the place of the three atoms on the equatorial axis. As a result, the two atoms on the y-axis remain, resulting in a linear shape.

2020年12月1日 · Re: trigonal bipyramidal electron geometry Post by Faith St Amant 3D » Tue Dec 01, 2020 7:02 am Another great resource that my TA showed us for looking at molecular/electron geometry in 3-D to get a better understanding of what is most stable is interactive simulation on the University of Colorado, Boulder website.

2019年11月20日 · Pentagonal Bipyramidal Post by Andrew Pfeiffer 2E » Sun Nov 17, 2019 6:46 am In the textbook, the molecular shape pentagonal bipyramidal (7 regions of high electron concentration) shows up a couple of times.

2017年11月25日 · Re: Molecular Shape Memorization Post by Connor Kelligrew 2D » Sun Nov 26, 2017 7:18 am I mean, unless you can memorize the basic shapes and then derive the rest by removing bonds and adding lone pairs of electrons and figure out the bond angle to maximize distance without memory, then yes it would have to simply be memorized.

2021年12月5日 · Re: Linear (Trigonal Bipyramidal) Geometry being Symmetric Post by Emily Engelkemier 1E » Sun Dec 05, 2021 2:50 am When you think about the 3D structure of a molecule with 5 regions of electron density, there are 2 regions that are axial (in a …

2019年11月21日 · What differs, however, is electron geometry, which takes into account all areas of electron density. Molecular shape/geometry considers electron repulsion between lone pairs and lone pairs and atoms. For example, NH3 will have a molecular geometry of trigonal pyramidal and a tetrahedral electron geometry.

2018年11月16日 · If you take, for example, square planar...the angles are 90 degrees and a model being "planar" implies it can only lie on one "plane"/be flat. If you get a grasp on trigonal planar, trigonal pyramidal, and tetrahedral, the more difficult models like trigonal bipyramidal and pentagonal bipyramidal become easier to visualize.