Home >  Products

Nanocarbon Unit Structures

 (1) Cycloparaphenylenes (CPP)  Carbon nanotubes (CNT) have advanced chemistry, material science, life science and other research fields. CNTs can be prepared by physical methods such as arc discharge, laser furnace, and chemical vapor deposition techniques. One disadvantage of these physical methods is forming several kinds of CNTs with various diameters, thus uniform CNTs do not form.
 Cycloparaphenylenes (CPP), the so-called carbon nanoring, have a cyclic structure formed by linkages of p-substituted benzenes. The CPP attracted researchers in fundamental chemistry and material science, because it is a unit structure of CNT. In fact, Itami et al. successfully synthesized uniform CNTs by a bottom-up procedure starting from CPP as a template compound.1)
 Recently, this research was extended to synthesize a CPP of smaller diameters having a large distortion. Yamago2) and Jasti3) groups independently reported synthesis of the [5]CPP, which has been the smallest CPP so far. We can expect to synthesize the smallest diameter CNTs from [5]CPP. In addition, the electronic and physical properties of [5]CPP may be interesting, because [5]CPP is a unit structure of C60 fullerene, too. CPPs of a specified diameter make an inclusion complex with a fullerene.4)

(2) Corannulene and truxene
Corannulene, the so-called [5]circulene, is one of the polycyclic aromatic compounds. It has a condensed structure of five benzene rings. The corannulene was first synthesized in 1960s,5) and after that the bowl-type structure was observed.6) The corannulene is attractive as a nanocarbon material, because it is a unit structure of C60 fullerene.
 Scott et al. synthesized a polyarene compound by a flash vacuum pyrolysis (FVP) starting from corannulene. This polyarene compound e corresponds to an end-capped CNT. An extension of the end-capped CNT may chemically produce a normal CNT.7) Itami and Scott et al. synthesized a grossly warped nanographene compound from corannulene.8)
 Truxene has star-shaped and rigid planar structures. Truxene is also a unit structure of C60 fullerene. Truxene derivatives are useful for OLED materials because they easily form an amorphous structure.9) A chemical synthesis for C60 fullerene was carried out starting from truxene. Otero et al. synthesized a polyarene compound formulated as C60H30 by three step reactions, and a thermal treatment of the polyarene on platinum surface gave C60 fullerene all.10)
(3) Coronene
 Coronene, the so-called [6]circulene, is another polycyclic aromatic compound. It has a condensed structure of six benzene rings. The coronene is a molecular compound in nanoscale, known as a representative nanographene compound that is smaller than graphene. The coronene can be an organic transistor material11) because it is a nanographene compound with a band gap, which is different from graphene. Furthermore, a bottom-up procedure of coronene fabricated a graphene nanostructure.12) After Kubozono et al. observed superconductivity from an alkali-doped picene,13) studies on organic superconductors of polycyclic aromatic compounds recently received much attention.14,15) An alkali-doped coronene also showed superconductivity.16)
A0005
Acenaphthylene
A0405
Anthracene Zone Refined (number of passes:30)
A0495
Anthracene
A0992
Anthracene
B0017
Benz[a]anthracene
B0085
3,4-Benzopyrene (purified by sublimation)
B0805
1,1'-Binaphthyl
B2982
Benzo[b]fluoranthene
B2983
Benzo[ghi]perylene
B4095
9,9'-Bianthracene
B5986
4-Bromo-4'-(4-bromophenyl)-3',5',6'-triphenyl-1,1':2',1''-terphenyl
C0339
Benzo[a]phenanthrene (purified by sublimation)
C0386
Coronene
C1689
1H-Cyclopenta[l]phenanthrene
C1961
Coronene (purified by sublimation)
C2449
[12]Cycloparaphenylene
C2572
Corannulene
C2931
[5]Cycloparaphenylene
C3386
[6]Cycloparaphenylene
C3465
[9]Cycloparaphenylene (This product is unavailable in the U.S.)
C3493
[10]Cycloparaphenylene
C3544
[8]Cycloparaphenylene
C3571
[7]Cycloparaphenylene
D0145
Dibenz[a,h]anthracene
D1005
Dibenzo[b,def]chrysene
D1689
9,10-Diphenylanthracene
D3736
Dibenzo[g,p]chrysene
D3975
9,10-Di(1-naphthyl)anthracene
D4127
9,10-Di(2-naphthyl)anthracene
D4401
9,10-Diphenylanthracene (purified by sublimation)
D5488
Dibenzo[a,l]pentacene
F0016
Fluoranthene
H1412
Hexaphenylbenzene
I1078
(6,6)Carbon Nanobelt Bis(tetrahydrofuran) Adduct
N0001
Naphthacene
N0599
Naphtho[2,3-a]pyrene
N0951
Naphthacene (purified by sublimation)
P0030
Pentacene (purified by sublimation)
P0078
Perylene
P0079
Phenanthrene
P0138
9-Phenylanthracene
P0331
Phenanthrene Zone Refined (number of passes:30)
P1104
Pyrene
P1629
Perylene (purified by sublimation)
P2072
Pyrene (purified by sublimation)
P2207
Picene (purified by sublimation) (>99.9%)
Q0001
p-Quaterphenyl
Q0018
p-Quinquephenyl
S0220
p-Sexiphenyl
T0018
m-Terphenyl
T0019
o-Terphenyl
T0020
p-Terphenyl
T0509
1,3,5-Triphenylbenzene
T0513
Triphenylene
T0561
5,6,11,12-Tetraphenylnaphthacene
T2233
5,6,11,12-Tetraphenylnaphthacene (purified by sublimation)
T2752
Truxene
T3042
1,3,6,8-Tetraphenylpyrene
T3263
p-Terphenyl (purified by sublimation)
T3267
Triphenylene (purified by sublimation)

References

Page Top

Page Top