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Updated: Jun 1, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Bis(2,2'-bipyridine-κN,N')(croconato-κO,O')nickel(II).
Hong-Feng Chen1, Qi Fang, Wen-Tao Yu
1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Shandong Province, People's Republic of China.
This study details the crystal structure of a novel nickel compound with 2,2'-bipyridine ligands. The NiN4O2 core exhibits octahedral geometry, with molecules packing via dipole-dipole interactions and stabilized by hydrogen bonds.
Area of Science:
- Coordination Chemistry
- Crystallography
- Materials Science
Background:
- Nickel complexes are crucial in catalysis and materials science.
- Understanding the structural and electronic properties of coordination compounds is key to designing new materials.
- 2,2 -bipyridine is a common chelating ligand in coordination chemistry.
Purpose of the Study:
- To characterize the crystal structure of the title nickel compound, [Ni(C(5)O(5))(C(10)H(8)N(2))(2)].
- To investigate the coordination geometry and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was used to determine the molecular and crystal structure.
- Analysis of bond lengths, angles, and intermolecular interactions (hydrogen bonds, dipole-dipole).
Main Results:
- The nickel complex crystallizes with a NiN4O2 coordination core adopting an octahedral geometry.
- Two 2,2 -bipyridine ligands are arranged in a propeller-like fashion around the nickel center.
- The molecular twofold axis aligns with the molecular dipole moment, influencing crystal packing.
- Intermolecular C-H⋯O hydrogen bonds stabilize the crystal structure.
Conclusions:
- The study provides a detailed structural description of a novel nickel-2,2 -bipyridine complex.
- The findings contribute to the understanding of coordination chemistry and crystal engineering principles.
- The observed packing motifs offer insights into the design of functional crystalline materials.
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