Related Experiment Video
Updated: May 15, 2026
![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)
11:44
Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
trans-Dichloridobis(4-nitro-aniline-κN(1))palladium(II)
1College of Mathematics, Physics and Software Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China.
Acta Crystallographica. Section E, Structure Reports Online
|January 4, 2013
Summary
This study details the crystal structure of a palladium(II) complex with 4-nitro-aniline ligands. The compound forms a 3D network via intermolecular hydrogen bonds, revealing its intricate molecular assembly.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Materials Science
Background:
- Palladium complexes are vital in catalysis and materials science.
- Understanding the supramolecular assembly of metal complexes is key to designing new materials.
Purpose of the Study:
- To characterize the crystal structure and supramolecular assembly of the [PdCl(2)(4-nitro-aniline)(2)] complex.
- To investigate the role of hydrogen bonding in the formation of extended networks.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the molecular and crystal structure.
- Analysis of intermolecular interactions, including hydrogen bonds.
Main Results:
- The palladium(II) center adopts a distorted square-planar geometry coordinated by two nitrogen atoms from 4-nitro-aniline and two chloride atoms in a trans configuration.
- Intermolecular N-H⋯Cl hydrogen bonds link the complex units into chains along the [100] direction.
- These chains further assemble into a three-dimensional network via N-H⋯O and N-H⋯Cl hydrogen bonds.
Conclusions:
- The [PdCl(2)(4-nitro-aniline)(2)] complex exhibits a unique 3D supramolecular architecture driven by specific hydrogen bonding interactions.
- The study provides insights into the self-assembly mechanisms of palladium complexes, relevant for crystal engineering and materials design.
Related Concept Videos
Diazonium Group Substitution: –OH and –H
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
All ortho–para directors, excluding halogens, are activating groups. These groups donate electrons to the ring, making the ring carbons electron-rich. Consequently, the reactivity of the aromatic ring towards electrophilic substitution increases. For instance, the nitration of anisole is about 10,000 times faster than the nitration of benzene. The electron-donating effect of the methoxy group in anisole activates the ortho and para positions on the ring and stabilizes the corresponding...

