Related Experiment Video
Updated: Feb 28, 2026

Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides
Published on: May 26, 2019
Controllable construction of half-sandwich octanuclear complexes based on pyridyl-substituted ligands with conjugated
Bei-Bei Guo1, Yue-Jian Lin, Guo-Xin Jin
1Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China. gxjin@fudan.edu.cn.
Abstract:
Functional metal bis(1,3,5-triazapentadienato) units [M(tap)2] (M = NiII/PdII) and pyrene groups were introduced as central units of three tetradentate tetrapyridyl-substituted ligands, with which seven half-sandwich organometallic complexes were controllably synthesized. The multi-centered hybrid products constructed from the two [M(tap)2] units revealed delocalized π-bonding environments. The products were characterized by proton NMR and IR spectroscopy, elemental analyses and electrospray ionization (ESI) mass spectrometry. The molecular structures of four of the products were determined by X-ray diffraction analysis, revealing their octanuclear structures.
More Related Videos
10:17Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
19:58Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Related Concept Videos
Valence Bond Theory
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Coordination Number and Geometry
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...
Crystal Field Theory - Octahedral Complexes
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
Five-Membered Heterocyclic Aromatic Compounds: Overview