Related Experiment Video
Updated: Jul 11, 2026
08:44
Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate
Published on: February 23, 2016
Titanium-manganese compound with a chiral Mn3Ti center
Lucjan B Jerzykiewicz1, Józef Utko, Lukasz John
1Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie, Wrocław, Poland.
Inorganic Chemistry
|September 14, 2007
Summary
Researchers developed a straightforward synthesis for a novel manganese-titanium molecular compound. This compound features a unique chiral titanium center within a manganese-titanium (Mn3Ti) core structure.
Area of Science:
- Coordination Chemistry
- Organometallic Chemistry
- Materials Science
Background:
- Manganese-titanium (Mn-Ti) compounds are of interest for their unique magnetic and catalytic properties.
- Developing novel synthetic routes to complex multinuclear metal complexes remains a significant challenge in coordination chemistry.
Purpose of the Study:
- To establish a facile synthetic pathway for a new molecular compound incorporating a Mn3Ti motif.
- To characterize the structural and electronic properties of the synthesized compound, particularly the coordination environment around the metal centers.
Main Methods:
- Single-crystal X-ray diffraction to determine the precise molecular structure.
- Elemental analysis to confirm the compound's stoichiometry.
- Spectroscopic techniques (e.g., IR, NMR) for structural elucidation.
Main Results:
- A novel molecular compound, [Mn3Ti(mu3-OCH2CH2OCH3)2(mu-OCH2CH2OCH3)3(mu-Cl)Cl2(OiPr)2], was successfully synthesized.
- The structure revealed a Mn3Ti core with the titanium atom occupying a chiral position, while the manganese atoms were in nonchiral sites.
- The compound exhibits a unique arrangement of bridging and terminal ligands, including alkoxide and chloride groups.
Conclusions:
- The study presents the first facile route to a chiral Mn3Ti molecular compound.
- The findings provide a foundation for exploring the properties and applications of related multinuclear Mn-Ti complexes.
- The controlled synthesis of such complex structures opens avenues for designing new functional materials.
Related Concept Videos
02:25Molecules with Multiple Chiral Centers
Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
02:30Chirality at Nitrogen, Phosphorus, and Sulfur
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
02:42Valence Bond Theory
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...
02:51Metal-Ligand Bonds
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...
02:05Prochirality
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
01:22Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction
The radical dimerization of ketones or aldehydes gives vicinal diols through a pinacol coupling reaction. However, the behavior of titanium metals used for the reaction as a source of electrons is unusual. When the reaction is carried out in the presence of titanium, diols can be isolated at low temperatures. Else titanium further reacts with diols, forming alkenes through the McMurry reaction.