Low spin manganocene and its novel anionic derivative. Synthesis and characterization of decamethylmanganocene complexes

Journal Article · Wed Jun 07 04:00:00 EDT 1978 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00480a051· OSTI ID:6651380

Smart, J C; Robbins, J L

Reaction of lithium pentamethylcyclopentadienide in THF with anhydrous MnCl/sub 2/ gave good yields of pure decamethylmanganocene (I) as air-sensitive, red-orange crystals. Magnetic susceptibility and other measurements indicate that I is a normal metallocene and is isostructural and isoelectronic with the ferricenium ion. Its electronic configuration is S = /sup 1///sub 2/. It could be reduced by sodium naphthalide to produce the decamethylmanganocene anion (II), which behaves as a strong one-electron reducing agent. Both I and II are inert toward ring exchange reactions, suggesting that the addition of five methyls to the cyclopentadienyl results in increased crystal field splitting in planar metallocenes. (DLC)

• Research Organization: Univ. of California, Berkeley
• OSTI ID: 6651380
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 100:12; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKENES
CHEMICAL PREPARATION
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COMPLEXES
CYCLOALKENES
CYCLOPENTADIENE
DIENES
ELECTRONIC STRUCTURE
HYDROCARBONS
MANGANESE COMPLEXES
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYENES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES