what is the minimum number of carbon atoms in fullerenes and what is its shape?
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Answers
C60 is the minimum number of carbon atoms in fullerenes its shape is football like structure
structure explanation
A fullerene is an allotrope of carbon whose molecule consists of carbon atoms connected by single and double bonds so as to form a closed or partially closed mesh, with fused rings of five to seven atoms.
Fullerenes are closed cage structures. Each carbon atom is bonded to three others and is sp2 hybridised. Hexagonal rings are present but pentagonal rings are required for the cage to close. The smallest fullerene that has been identified is C20+, and the largest has well over 100 carbons. All fullerenes have an even number of carbons, and if a C2n fullerene is fragmented, by say mass spectrometry, it will spit out C2 fragments and form C2n-2 fullerenes until it gets to C32, at which point the whole structure falls apart.
The most symmetrical, and therefore the most stable, fullerene is C60, followed by C70, with the others being much less stable. The C60 molecule has two bond lengths - the 6:6 ring bonds (between two hexagons) can be considered "double bonds" and are shorter than the 6:5 bonds (between a hexagon and a pentagon). C60 and C70 have similar properties in that they behave very much like electron deficient alkenes and readily react with electron rich species.
Explanation:
c60 इज द मिनिमम नंबर ऑफ कार्बन एटम इन फ्लोरेंस एट शेप इन फुटबॉल लाइक स्ट्रक्चर