Force constant decomposition for penta-coordinated XH3 Cl2- (X = C, Si, Ge) structures
Related Experiment Video
Updated: Feb 11, 2026

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
Published on: November 20, 2021
1Faculty of Pharmaceutical Sciences, Toho University, Miyama, Funabashi-shi, Chiba, 274-8510, Japan.
Abstract:
Based on the energy decomposition analysis of an interacting system, we propose a method for force constant decomposition analysis with respect to the specific normal coordinate. Using the presented method, we examined the penta-coordinated XH3Cl2- system (X = C, Si, Ge), which possesses a three-center four-electron bond. The origin of the difference in the stability of the penta-coordinated D3h structures was clearly shown to be the effect of electron delocalization-polarization term. © 2018 Wiley Periodicals, Inc.
Related Concept Videos
Power Expended by a Constant Force
Synthesis and Decomposition Reactions
Coordination Number and Geometry
Coordination Compounds and Nomenclature
Lattice Centering and Coordination Number
Types of Unit Cells
Imagine taking a large number of identical...
Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...

