Giant Spherical Cluster with I-C140 Fullerene Topology**
نویسندگان
چکیده
We report on an effective cluster expansion of CuBr-linked aggregates by the increase of the steric bulk of the Cp(R) ligand in the pentatopic molecules [Cp(R)Fe(η(5)-P5)]. Using [Cp(BIG)Fe(η(5)-P5)] (Cp(BIG)=C5(4-nBuC6H4)5), the novel multishell aggregate [{Cp(BIG)Fe(η(5:2:1:1:1:1:1)-P5)}12(CuBr)92] is obtained. It shows topological analogy to the theoretically predicted I-C140 fullerene molecule. The spherical cluster was comprehensively characterized by various methods in solution and in the solid state.
منابع مشابه
Real time microscopy, kinetics, and mechanism of giant fullerene evaporation.
We report in situ high-resolution transmission electron microscopy observing the shrinkage of single-layer giant fullerenes (GF). At temperatures approximately 2000 degrees C, the GF volume reduces by greater than one 100-fold while the fullerene shell remains intact, evolving from a slightly polygonized to a nearly spherical shape with a smaller diameter. The number of carbon atoms in the GF d...
متن کاملStructure and energetics of giant fullerenes: An order-N molecular-dynamics study.
We present a molecular-dynamics study of the energetics and structures of very large carbon cage clusters, which has been performed using tight-binding methods, both empirical and ab initio. The use of an order-N scheme, which provides the solution of the electronic problem with an effort proportional to the size of the system, allowed us to study clusters with up to 3840 atoms. We have conside...
متن کاملApplication of Parametric L-Systems to Generate the Figures of Two Series of Spherical Fullerenes
In this work, two parametric L-Systems have been introduced to generate the figures of two series of nanostructures. These series consist of different spherical fullerenes with various number of carbon atoms. By specifying a parameter in each series a spherical fullerene can be determined. The members of the first series are C60 , C240 , C540 , C940 ,… which can be produced by applying paramete...
متن کاملNumerical simulation of the thermal fragmentation process in fullerene C 60
The processes of defect formation and annealing in fullerene C 60 at T = (4000-6000) K are studied by the molecular dynamics technique with a tight-binding potential. The cluster lifetime until fragmentation due to the loss of a C 2 dimer has been calculated as a function of temperature. The activation energy and the frequency factor in the Arrhenius equation for the fragmentation rate have bee...
متن کاملFullerene C60 as an endohedral molecule within an inorganic supramolecule.
The synthesis and properties of large spherical molecules and giant clusters is a fascinating field in contemporary chemistry, unifying all areas of organic/supramolecular, inorganic, and coordination chemistry as well as organometallic chemistry. Recent developments of low-valent group 13 metalloid clusters,1 chalcogeno-bridged copper, and silver clusters2 as well as giant polyoxomolybdates3 r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 54 شماره
صفحات -
تاریخ انتشار 2015