32985-17-4

Basic information

• Product Name: 1,1'-Dimethylmanganocene
• Synonyms: 1,1'-Dimethylmanganocene
• CAS NO: 32985-17-4
• Molecular Formula: C₁₂H₁₄Mn
• Molecular Weight: 213.1809
• Mol File: 32985-17-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 80.4°Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 94.8mmHg at 25°C
• CAS DataBase Reference: 1,1'-Dimethylmanganocene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-Dimethylmanganocene(32985-17-4)
• EPA Substance Registry System: 1,1'-Dimethylmanganocene(32985-17-4)

Safety Data

• Hazardous Substances Data: 32985-17-4(Hazardous Substances Data)

Usage

General Description

1,1'-Dimethylmanganocene is an organometallic compound that consists of a manganese atom sandwiched between two cyclopentadienyl rings, each of which is attached to a methyl group. It is used as a catalyst in organic synthesis reactions and has been studied for its potential applications in medicinal chemistry and materials science. The compound has been shown to exhibit interesting reactivity and selectivity in various organic transformations, making it a valuable tool in the development of new methods for the synthesis of complex molecules. Additionally, 1,1'-Dimethylmanganocene has been investigated for its potential therapeutic properties, particularly in relation to its ability to inhibit the growth of cancer cells and to modulate the activity of neurotransmitter receptors. Overall, this compound represents an important class of organometallic compounds with diverse applications in chemical and biomedical research.

InChI:InChI=1/2C6H7.Mn/c2*1-6-4-2-3-5-6;/h2*2-5H,1H3;/q-5;-1;

Upstream product

• 92421-50-6 (η5-methylcyclopentadienyl)(μ-chloro)(tetrahydrofuran)manganese(II) dimer 

Downstream Products

• 223424-72-4 (1,2-bis(dimethylphosphino)ethane)(η(5)-methylcyclopentadienyl)(phenylethynyl)manganese(II) 
• 177283-11-3 bis(1,2-bis(dimethylphosphino)ethane)bis(phenylethynyl)manganese(II) 
• 223424-74-6 (1,2-bis(dimethylphosphino)ethane)(η(5)-methylcyclopentadienyl)(phenylvinylidene)manganese(I) 
• 223424-75-7 bis[(1,2-bis(dimethylphosphino)ethane)(η(5)-methylcyclopentadienyl)manganese(I)](μ-2,3-diphenylbutadien-1,4-diylidene) 

Relevant articles and documents

Monocyclopentadienyl compounds of manganese(II). Synthesis, structure, magnetism, and NMR spectra

A series of 13 manganese(II) half-sandwich compounds [(RnCp)MnXL]2, type L, and (Rcp)MnXL2, type K, have been prepared on different routes. These routes include the new starting materials Mn(DME)2I2 and [Mn3I6(AsEt3)4n. In general, K is favored only when small powerful donor ligands are used. In solution K and L are in equilibrium when R = Me, X = I, and L = PMe3. Byproducts of low solubility may force the equilibrium entirely to K, e.g., for R = H, X = I, and L = PMe3. A systematic paramagnetic NMR study shows that the compounds may be characterized easily. In particular, the distinction between K and L, the delocalization of unpaired electrons, and hyperconjugative effects in the phosphine-transition-metal bonding are shown. According to the NMR data and to solid-state magnetic measurements all compounds have five unpaired electrons per manganese at room temperature. For [Mecp)MnX(PEt3)]2 (X - Cl (2), X = Br (3), = I (4)) the magnetism has been followed down to 1.25 K, and antiferromagnetic interaction with J = -4.8, -5.0, and -4.7 cm-1 has been found. The J values are shown to be typical for superexchange in high-spin maganese(II) dimers. As determined by X-ray crystallography 2, 3, and 4 are halogen-bridged centrosymmetric dimers with pseudotetrahedral metal centers. Crystals of 2 and 3 are orthorhombic, space group Pbca, with a = 13.691 (3)/13.869 (1) ?, b = 15.314 (2)/15.248 (1) ?, c = 14.402 (3)/14.640 (1) ?, V = 3019.6/3074.8 ?3, and dcalcd = 1.265/1.435 g cm-3 for Z = 4. Refinement converged at R = 0.055/0.046 for 156/136 refined parameters and 1611/1572 observables. 4 is monoclinic, space group P21/c, with a = 15.099 (4) ?, b = 15.365 (3) ?, c = 14.576 (4) ?, β = 108.11 (2)°, V = 3214.1 ?3, and dcald = 1.567 g cm-3 for Z = 4. Refinement converged at R = 0.071 for 227 refined parameters and 2697 observed reflections. There is a clear halogen dependence for the geometry of the central Mn2X2 unit. All distances and the angle X-Mn-X increase on going from Cl to I while Mn-X-Mn* decreases. The latter effect is attributed to increasing halogen repulsion.