Bis(benzene)chromium. 2. Its Discovery by E. O. Fischer and W. Hafner and Subsequent Work by the Research Groups of E. O. Fischer, H. H. Zeiss, F. Hein, C. Elschenbroich, and Others†

Publisher Summary This chapter discusses the fundamentals of metal–atom synthesis and its experimental methods. Metal atoms can be formed by thermally vaporizing metals under vacuum. The enhanced reactivity of metal atoms compared with bulk metals is partly due to the endothermicity of the atoms and partly due to kinetic factors. The desired atom–molecule reaction will compete only if there is a large excess of the organic molecules; atom–molecule ratios of 1:10 to 1:50 are commonly used to obtain acceptable yields of organometallic products based on the metal vapor condensed. Simple alkanes are generally unreactive toward metal atoms at low temperature. All the methods used for evaporating metals for atom synthesis had been developed originally for the deposition of thin metal films. The interaction of metal atoms with monoalkenes has been investigated on both a spectroscopic and preparative scale. Alkynes have not yielded isolable organometallic complexes in their reactions with metal atoms. A number of new metal–dinitrogen complexes of type M(N2)n have been detected in the reaction of metal atoms with N2 under matrix isolation conditions. The catalytic oligomerization of butadiene is found to occur in most transition metal vapor–butadiene reactions. The interaction of metal atoms with cyclopentadiene is characterized by a tendency toward the formation of a stable electronic configuration for the metal. Reactions of cobalt and nickel atoms with toluene and other arenes yield condensates in which the metal is in a very reactive state. When metal atoms condense on a surface, the recombination to form bulk metal will occur at a rate controlled only by diffusion even at 4 K.

Metal Atom Synthesis of Organometallic Compounds

Common and less-common coordination modes of the typical chelating and heteroaromatic ligands

Heterocyclic π-Complexes of the transition metals

1,2-Azaboratabenzene: A Heterocyclic π-Ligand with an Adjustable Basicity at Nitrogen

Bis(2,6-dimethylpyridine)chromium. A .pi.-heterocyclic complex

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

J. J. Lagowski

Author Tools

Chat about Author

Papers

Bis(2,6-dimethylpyridine)chromium. A .pi.-heterocyclic complex

Bis(2,6-dimethylpyridine)chromium. A .pi.-heterocyclic complex