Iodine heptafluoride is an interhalogen compound with the chemical formula I F 7. [2][3] It has an unusual pentagonal bipyramidal structure, with D 5h symmetry, as predicted by VSEPR theory. [4] .

I know that the VSEPR theory explains IFX7 I F X 7 (iodine heptafluoride)'s structure as a pentagonal bi-pyramidal one. The valence bond theory can be used to say that it has sp3d3 s p 3 d 3 hybridisation (I think). How can the bonding in it be explained using the LCAO (Linear Combination of atomic orbitals) method in molecular orbital theory?

2017年7月25日 · When it comes to more complicated molecules, for example hyper-coordinated compounds like $\ce{IF7}$, most explanations (the involvement of d orbitals) break completely down and have been disproved many times. However, just by minimising the inter-ligand distances, it yield approximately the correct shape.

2021年8月17日 · The Valence Shell Electron Pair Repulsion (VSEPR) theory is a simple and useful way to predict and rationalize the shapes of molecules.

2020年8月14日 · In BeH 2, we can generate two equivalent orbitals by combining the 2 s orbital of beryllium and any one of the three degenerate 2 p orbitals. By taking the sum and the difference of Be 2 s and 2 pz atomic orbitals, for example, we produce two new orbitals with major and minor lobes oriented along the z -axes, as shown in Figure 10.7.1 10.7. 1.

2023年10月31日 · Iodine's ability to form 7 bonds in IF7, signifying the presence of 7 unpaired electrons, raises the question of how and why Iodine can engage in 7 bond formations in this particular context....

七氟化碘是一种无机物，化学式为IF7，为无色有霉烂臭味的气体，冷冻后成无色晶体。 化学性质很活泼，可与除 铂系元素 以外的所有金属和大多数非金属反应。 七氟化碘可用过量的氟和碘一起加热或由 五氟化碘 氧化制得。 [5] 七氟化碘的分子会透过Bartell假旋转机制进行原子重排，Bartell假旋转是一种类似 Berry假旋转 的假旋转机制，不过只针对五角双锥构型的分子。 化学性质活泼，可与大多数金属和非金属反应，能溶于 氢氟酸，能腐蚀玻璃和石英。 可用作 氟化剂 …

2020年9月25日 · The document discusses the hybridization and shape of interhalogen molecules such as IF7, IF5, and IF3. IF7 has a pentagonal bipyramid shape with the iodine atom in an sp3d3 hybridized state. IF5 has a square bipyramid shape with iodine in an sp3d2 hybridized state.

Iodine heptafluoride, also known as iodine (VII) fluoride or even iodine fluoride, is the compound I F 7 [1] [2]. It has an unusual pentagonal bipyramidal structure, as predicted by VSEPR theory. [3] . The molecule can undergo a pseudorotational rearangment like the Berry mechanism but for a hepta coordinated system. [4] .

Now, for I F 7: Hybridisation = 7 (number of valence electrons on I-atom) + 7 (number of surrounding halogen atoms) -0+0 and divide this whole by 2. The element Iodine has 7 lone electrons. When it is bonded to seven Fluorine atoms through sigma bonds, the total number of electron pairs around Iodine becomes 7 with no lone pair of el.