There is no phase diagram available for this system. It may be conjectured that it would be similar to that for the C-Li system, and so would show (a) the compound C2Na2, (b) a liquid and (c) a eutectic of composition very close to 100 at.% Na and temperature very close to the M.P. of Na. Data for the solubility of C in liquid Na have been reported in [1957Gra, 1967Lun, 1969McK, 1970Geh, 1970Lon, 1972Sal, 1973Ack, 1974Ain]. Pertinent experimental details are summarized in Table 1. The data, plotted in Fig. 1, were fitted to the equation: Log10S 1⁄4 A B=T ðEq 1Þ

C-Na (Carbon-Sodium) System

Crystals of a C60 1:1 solvate (I-centered cubic, a = 23.284(2) A) were grown by evaporating solutions of C60 in H2CCl2 at room temperature. Solvate crystals are not air stable and spontaneously transform into a hexagonal polymorph of C60 (a = 10.044(5) A, c = 16.404(8) A, c/a = 1.633(2)) when extracted from the mother liquor at room temperature. Although solvate formation entails almost no volume change, desolvation enthalpy (59.2 kJ/mol of solvent) is found to be about twice as high as sublimation enthalpy for pure H2CCl2.

Solid-state studies on a cubic 1:1 solvate of C60 grown from dichloromethane and leading to another hexagonal C60 polymorph

The hexagonal closed packed crystal structures of the higher fullerenes, C76, C78, and C84, have been determined at room temperature in the [001] projection from single crystal electron diffraction intensity data. In all cases, the molecules in the crystal are rotating freely about their centers. As part of the structure analysis, independent determination of average molecular radii (a continuous variable in the structure factor calculation) yields values in reasonable agreement with predicted values for these molecules.

Quantitative Electron Crystallographic Determinations of Higher Fullerenes in the Hexagonal Close Packed Polymorph

C-K (Carbon-Potassium) System

There is no phase diagram available for this system. It may be conjectured that it would be similar to that for the C-Li system, and so would show (a) the compound C2Cs2, (b) a liquid and (c) a eutectic of composition very close to 100 at.% Cs and temperature very close to the M.P. of Cs. The alkali metals exhibit three types of intermediate compounds with carbon. For cesium, these may be designated

C-Cs (Carbon-Cesium) System

C 60 fullerene may crystallize from benzene solutions as thin yellow plates, whose morphology has suggested the existence of a hcp modification. By means of single crystal X-ray diffraction, we show that these plates crystallize in the cubic system. Surprisingly, these plates do not exhibit the phase transition near 260K. Nevertheless, the existence of a hcp variety cannot be discarded since scanning electron microscopy reveals the presence of hexagonal prims in a sample made of pure C 60 powder

Morphological versatility of solid C60 fullerene: I. Solid state studies of yellow plates grown from benzene solutions

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.

L. Straver

Author Tools

Chat about Author

Papers

Morphological versatility of solid C60 fullerene: I. Solid state studies of yellow plates grown from benzene solutions