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Updated: Jun 1, 2026
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Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
(2,2'-Bipyridine-κN,N')tetra-bromidoplatinum(IV)
1School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.
Summary
This study details the crystal structure of a platinum(IV) complex, [PtBr4(C10H8N2)], revealing distorted octahedral coordination and intermolecular interactions. The findings highlight unique platinum-bromine bond lengths and crystal packing arrangements.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Coordination Chemistry
Background:
- Platinum(IV) complexes are of interest due to their diverse coordination geometries and potential applications.
- Understanding the structural nuances of these complexes is crucial for predicting their properties and reactivity.
Purpose of the Study:
- To elucidate the crystal structure and coordination environment of the novel platinum(IV) complex, [PtBr4(C10H8N2)].
- To investigate the influence of ligand-metal interactions on bond lengths and crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, angles, and intermolecular interactions (π-π stacking, hydrogen bonding) was performed.
Main Results:
- The platinum(IV) ion exhibits a distorted octahedral coordination with two nitrogen atoms from 2,2'-bipyridine and four bromide ions.
- Differential trans effects of nitrogen and bromide ligands result in shorter Pt-Br bonds trans to nitrogen.
- The crystal structure features V-shaped molecular packing and columns stabilized by intermolecular π-π interactions and C-H⋯Br hydrogen bonds.
Conclusions:
- The study provides a detailed structural characterization of the [PtBr4(C10H8N2)] complex.
- The observed packing and bonding patterns offer insights into supramolecular assembly in platinum(IV) coordination compounds.
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