Related Experiment Video
Updated: Apr 30, 2026
![The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F54498.jpg&w=3840&q=50)
12:43
The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
7.9K
Electrochemically generated nanoparticles of halogen-bridged mixed-valence binuclear metal complex chains
Emiliano Martínez-Periñán1, Mohammad-Reza Azani, José M Abad
1Department of Analytical Chemistry and Instrumental Analysis, Universidad Autónoma de Madrid, UAM, 28049 Madrid (Spain).
Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 3, 2014
Summary
Electrochemical polymerization of platinum-containing MMI2 subunits forms spherical nanostructures. This process involves a reduction and disproportionation mechanism, confirmed by in situ electrochemical studies.
Area of Science:
- Electrochemistry
- Materials Science
- Nanotechnology
Background:
- MMX chains offer unique properties for nanomaterial synthesis.
- Electrochemical polymerization is a versatile method for creating nanostructures.
Purpose of the Study:
- To investigate the electrochemical synthesis of spherical nanoparticles from MMI2 subunits.
- To elucidate the mechanism of nanostructure deposition.
Main Methods:
- In situ electrochemical measurements.
- Energy-dispersive X-ray spectroscopy (EDX).
- X-ray photoelectron spectroscopy (XPS).
Main Results:
- Spherical nanoparticles of [Pt2(MeCS2)4I]n were successfully synthesized.
- The deposition mechanism involves reduction of MMI2 to [MMI2](-) and subsequent disproportionation.
- EDX and XPS confirmed the polymer composition.
Conclusions:
- Electrochemical polymerization provides a controlled route to MMI2-based nanostructures.
- The proposed mechanism accurately describes the nanostructure formation process.
Related Concept Videos
02:51Metal-Ligand Bonds
19.3K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
19.3K
02:42Valence Bond Theory
8.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.9K
01:19Complexation Equilibria: The Chelate Effect
1.7K
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
1.7K
03:45Formation of Complex Ions
18.8K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
18.8K
02:54Coordination Compounds and Nomenclature
21.1K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
21.1K
01:09Complexation Equilibria: Factors Influencing Stability of Complexes
997
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
997