Editing Buckminsterfullerene (section)

===Solution===
[[File:C60 Fullerene solution.jpg|thumb|Dilute solution of C<sub>60</sub> in an aromatic solvent]]

{| align= "left" class="wikitable" style="margin-right:10px"
|+ Solubility of C<sub>60</sub><ref>
{{cite journal |last1 = Beck|first1 = Mihály T. |last2 = Mándi|first2 = Géza |year = 1997 |title = Solubility of C<sub>60</sub> |journal = Fullerenes, Nanotubes and Carbon Nanostructures |volume = 5|pages = 291–310 |doi = 10.1080/15363839708011993 |issue = 2}}</ref><ref>{{cite journal |last1 = Bezmel'nitsyn|first1 = V. N. |last2 = Eletskii|first2 = A. V. |last3 = Okun'|first3 = M. V. |year = 1998 |title = Fullerenes in solutions |journal = [[Physics-Uspekhi]] |volume = 41|pages = 1091–1114 |doi = 10.1070/PU1998v041n11ABEH000502| bibcode = 1998PhyU...41.1091B |issue = 11 |s2cid = 250785669}}</ref><ref>
{{cite journal |year = 1993 |title = Solubility of fullerene (C<sub>60</sub>) in a variety of solvents |journal = [[Journal of Physical Chemistry]] |volume = 97|pages = 3379–3383 |doi = 10.1021/j100115a049 |issue = 13 |last1 = Ruoff |first1 = R. S. |last2 = Tse |first2 = Doris S. |last3 = Malhotra |first3 = Ripudaman |last4 = Lorents |first4 = Donald C.}}</ref>

!Solvent !!Solubility<br>(g/L)
|-
| [[1-chloronaphthalene]]
| 51
|-
| [[1-methylnaphthalene]]
| 33
|-
| [[1,2-dichlorobenzene]]
| 24
|-
| [[1,2,4-trimethylbenzene]]
| 18
|-
| [[tetrahydronaphthalene]]
| 16
|-
| [[carbon disulfide]]
| 8
|-
| [[1,2,3-tribromopropane]]
| 8
|-
| [[xylene]]
| 5
|-
| [[bromoform]]
| 5
|-
| [[cumene]]
| 4
|-
| [[toluene]]
| 3
|-
| [[benzene]]
| 1.5
|-
| [[carbon tetrachloride]]
| 0.447
|-
| [[chloroform]]
| 0.25
|-
| [[hexane]]
| 0.046
|-
| [[cyclohexane]]
| 0.035
|-
| [[tetrahydrofuran]]
| 0.006
|-
| [[acetonitrile]]
| 0.004
|-
| [[methanol]]
| 0.00004
|-
| [[water]]
| 1.3&nbsp;×&nbsp;10<sup>−11</sup>
|-
| [[pentane]]
| 0.004
|-
| [[octane]]
| 0.025
|-
| [[isooctane]]
| 0.026
|-
| [[decane]]
| 0.070
|-
| [[dodecane]]
| 0.091
|-
| [[tetradecane]]
| 0.126
|-
| [[dioxane]]
| 0.0041
|-
| [[mesitylene]]
| 0.997
|-
| [[dichloromethane]]
| 0.254
|}

[[File:UV-Vis C60.jpg|thumb|Optical absorption spectrum of {{chem|C|60}} solution, showing diminished absorption for the blue (~450&nbsp;nm) and red (~700&nbsp;nm) light that results in the purple color.]]
Fullerenes are sparingly soluble in aromatic [[solvent]]s and [[carbon disulfide]], but insoluble in water. Solutions of pure C<sub>60</sub> have a deep purple color which leaves a brown residue upon evaporation. The reason for this color change is the relatively narrow energy width of the band of molecular levels responsible for green light absorption by individual C<sub>60</sub> molecules. Thus individual molecules transmit some blue and red light resulting in a purple color. Upon drying, intermolecular interaction results in the overlap and broadening of the energy bands, thereby eliminating the blue light transmittance and causing the purple to brown color change.<ref name="Dresselhaus" />

{{chem|C|60}} crystallises with some solvents in the lattice ("solvates"). For example, crystallization of C<sub>60</sub> from [[benzene]] solution yields triclinic crystals with the formula C<sub>60</sub>·4C<sub>6</sub>H<sub>6</sub>. Like other solvates, this one readily releases benzene to give the usual face-centred cubic C<sub>60</sub>. Millimeter-sized crystals of C<sub>60</sub> and {{chem|C|70}} can be grown from solution both for solvates and for pure fullerenes.<ref>
{{cite journal |last = Talyzin|first = A. V. |year = 1997 |title = Phase Transition C<sub>60</sub>−C<sub>60</sub>*4C<sub>6</sub>H<sub>6</sub> in Liquid Benzene |journal = [[Journal of Physical Chemistry B]] |volume = 101|pages = 9679–9681 |doi = 10.1021/jp9720303 |issue = 47
}}</ref><ref>{{cite journal |last1 = Talyzin|first1 = A. V. |last2 = Engström|first2 = I. |year = 1998 |title = C70 in Benzene, Hexane, and Toluene Solutions |journal = Journal of Physical Chemistry B |volume = 102|pages = 6477–6481 |doi = 10.1021/jp9815255 |issue = 34}}</ref>