Whilegraphene，acarbon-basedtwo-dimensionalnanomaterials，hasreceivedanupsurgeofinterest，[1]self-assemblyofsmallorganicandorganometallicmoleculesinto2Dnanostructurescouldal... While graphene， a carbon-based two-dimensional nanomaterials，
has received an upsurge of interest，[1] self-assembly of
small organic and organometallic molecules into 2D nanostructures
could also be harnessed to develop new classes of
functional supramolecular nanomaterials.[2] In principle，
quasi-2D lamellae or nanosheets are planar structures
having a thickness less than 100 nm and lateral dimensions a
few orders of magnitude greater than their thickness. Control
over the bilateral intermolecular noncovalent interactions is
anticipated to organize small molecules into regular 2D
nanostructures， which has been a formidable challenge yet to
be achieved. Recently， Shelnutt and co-workers obtained
discrete porphyrin nanosheets reprecipitated from their
solutions;[3] Sathish and co-workers constructed hexagonal
C60 nanosheets using a liquid–liquid interfacial precipitation
method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline
nanosheets of polycyclic aromatics using a surfactant-
assisted reprecipitation and a physical vapor transporting
method， respectively; and Zhang and co-workers suggested
that molecules with intramolecular charge-transfer dipole
moments could be grown into quasi-2D nanostructures.[7]
Moreover， some amphiphiles and organogelators were
found to self-organize into sheet-like nanostructures in
contact with solvents.[8] Despite these advances， templateand
surfactant-free synthesis of free-standing， crystalline， and
optoelectronically active nanosheets from small molecules
remains elusive.
While graphene， a carbon-based two-dimensional nanomaterials，
has received an upsurge of interest，[1] self-assembly of
small organic and organometallic molecules into 2D nanostructures
could also be harnessed to develop new classes of
functional supramolecular nanomaterials.[2] In principle，
quasi-2D lamellae or nanosheets are planar structures
having a thickness less than 100 nm and lateral dimensions a
few orders of magnitude greater than their thickness. Control
over the bilateral intermolecular noncovalent interactions is
anticipated to organize small molecules into regular 2D
nanostructures， which has been a formidable challenge yet to
be achieved. Recently， Shelnutt and co-workers obtained
discrete porphyrin nanosheets reprecipitated from their
solutions;[3] Sathish and co-workers constructed hexagonal
C60 nanosheets using a liquid–liquid interfacial precipitation
method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline
nanosheets of polycyclic aromatics using a surfactant-
assisted reprecipitation and a physical vapor transporting
method， respectively; and Zhang and co-workers suggested
that molecules with intramolecular charge-transfer dipole
moments could be grown into quasi-2D nanostructures.[7]
Moreover， some amphiphiles and organogelators were
found to self-organize into sheet-like nanostructures in
contact with solvents.[8] Despite these advances， templateand
surfactant-free synthesis of free-standing， crystalline， and
optoelectronically active nanosheets from small molecules
remains elusive.
而石墨，碳为基础的二维纳米材料，
已收到的兴趣大增，[1]自组装
小型有机和有机金属纳米结构为二维分子
还可以利用，以开发新类
功能超分子纳米材料[2]。原则，
准二维层状或薄片的平面结构
有一个厚度小于100纳米和横向尺寸
为数不多的数量级大于厚度。控制
超过双边分子间非共价键相互作用
预计组织成小分子经常二维
纳米结构，这是一个巨大的挑战尚未
实现。Z近，舍纳特和同事获得
离散卟啉薄片reprecipitated其
解决方案; [3] Sathish和同事构建六角
C60的薄片采用液液界面沉淀
方法; [4]姚明集团[5]和胡[6]准备singlecrystalline
多环芳香烃薄片的使用表面活性剂
再沉淀和辅助物理气相传输
法分别，张和同事建议
随着分子内电荷转移分子偶极
时刻可以发展成为准二维纳米结构。[7]
此外，一些双亲和organogelators人
发现自我组织成片，如纳米结构的
接触溶剂。[8尽管取得了这些进展]，templateand
表面活性剂的自由站立，结晶，合成和自由
小分子optoelectronically积极薄片
仍然遥遥无期。
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