Manganese (II) ion

Base Information

• Chemical Name: Manganese (II) ion
• CAS No.: 7439-96-5
• Deprecated CAS: 17375-02-9,195161-78-5,39303-06-5,8031-40-1,8075-39-6,39303-06-5,8031-40-1,8075-39-6
• Molecular Formula: Mn
• Molecular Weight: 54.938
• European Community (EC) Number: 231-105-1
• ICSC Number: 0174
• UN Number: 3089
• UNII: 42Z2K6ZL8P
• DSSTox Substance ID: DTXSID2024169,DTXSID801314870
• Nikkaji Number: J89.952F
• Wikipedia: Manganese
• Wikidata: Q731,Q27109868,Q27115185
• NCI Thesaurus Code: C68266
• Mol file: 7439-96-5.mol

Synonyms:Manganese

Chemical Property of Manganese (II) ion

Chemical Property:

• Appearance/Colour: silvery or greyish flakes or chunks
• Melting Point: 1244 °C(lit.)
• Boiling Point: 1962 °C(lit.)
• PSA: 0.00000
• Density: 7.3 g/mL at 25 °C(lit.)
• LogP: 0.00000
• Water Solubility.: Reacts with water
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 54.938043
• Heavy Atom Count: 1
• Complexity: 0
• Transport DOT Label: Flammable Solid

Purity/Quality:

99.9% ^*data from raw suppliers

Safty Information:

• Pictogram(s): F, Xi, T
• Hazard Codes: F:Highly flammable
• Statements: R11:Highly flammable.
• Safety Statements: S16:Keep away from sources of ignition - No smoking.

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Manganese Compounds, Inorganic
• Canonical SMILES: [Mn]
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
• Effects of Short Term Exposure: The aerosol is irritating to the respiratory tract.
• Effects of Long Term Exposure: The substance may have effects on the lungs and central nervous system. This may result in increased susceptibility to bronchitis, pneumonitis and neurologic and neuropsychiatric disorders (manganism). Animal tests show that this substance possibly causes toxicity to human reproduction or development.
• General Description: Manganese, also known by names such as Colloidal manganese, Manganese-55, or Teprosyn Mn, is a transition metal that forms organometallic complexes with distinct stereochemical properties. In the context of [MBr(CO)3L2] complexes (where M = Mn, L = triorganophosphine ligands), manganese(I) derivatives predominantly adopt a mer,trans geometry, as confirmed by single-crystal X-ray diffraction. This contrasts with rhenium(I) analogues, which typically exhibit fac,cis configurations. The stereochemistry of these complexes is reliably determined through crystallographic studies, while spectroscopic methods like IR and 31P-NMR provide supplementary insights into ligand coordination and structural assignments. Manganese's role in such complexes highlights its versatility in organometallic chemistry, particularly in forming geometrically distinct coordination compounds.

Technology Process of Manganese (II) ion

There total 165 articles about Manganese (II) ion which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 98.0%

benzylpentacarbonylmanganese → manganese (7439-96-5)

Guidance literature:

byproducts: bibenzyl; flash vacuum pyrolysis at 350°C and 0.1 torr;

DOI:10.1021/ja00304a043

Reference yield:

manganese(II) oxide + aluminium (7429-90-5) → aluminum oxide (1333-84-2,1344-28-1) + manganese (7439-96-5)

Guidance literature:

byproducts: Al2O3; at 1800°K; Kinetics;

Reference yield:

aluminium (7429-90-5) → aluminum oxide (1333-84-2,1344-28-1) + manganese (7439-96-5)

Guidance literature:

With Mn oxide; In neat (no solvent); thermite process; exclusion of air; mixture of finely dispersed Al and metal oxide is locally ignited by ignition mixture; strong evolution of heat;; mixture of molten Al2O3 and metal obtained;;

upstream raw materials:

manganese(ll) chloride

aluminium

hydrogen

pyrographite

Downstream raw materials:

3-amino-2-isopropylthiobenzonitrile

diphenylphosphane

dicyclohexylphosphane

methylphenylphosphine

Refernces

A crystallographic and spectroscopic investigation of the stereochemistry of [MBr(CO)₃L₂] (M=Mn, Re) complexes

10.1016/j.jorganchem.2003.08.043

The research delves into the stereochemistry of [MBr(CO)3L2] complexes with M being either manganese (Mn) or rhenium (Re) and L representing triorganophosphine ligands. The study encompasses the synthesis, characterization, and structural analysis of these complexes, which are pivotal in organometallic chemistry. The researchers synthesized a variety of these complexes and employed elemental analysis, infrared (IR) spectroscopy, and 31P-nuclear magnetic resonance (NMR) spectroscopy for their characterization. The synthesis was executed based on a literature method, involving reactions in chloroform with different durations for Mn and Re complexes. To determine the stereochemistry, the researchers conducted single-crystal X-ray diffraction studies on select complexes, confirming the fac,cis geometries for Re(I) derivatives and those with bidentate ligands, and mer,trans geometries for the remaining Mn(I) derivatives. Additionally, IR spectroscopy was instrumental in analyzing the carbonyl stretching regions, aiding in the stereochemical assignments, while 31P-NMR provided insights into the ligand coordination to the metal center. This comprehensive approach underscored the reliability of single-crystal X-ray diffraction in confirming the stereochemistry, especially when compared to the potential inaccuracies of IR spectroscopy-based assignments.