The [60]fulleride of bis(η6 hexamethylbenzene)chromium(I) [(η 6 C 6 Me 6 ) 2 Cr] •+ [C 60 ] •− , and the complexes C 60 •C 6 Me 6 and C 60 •C 6 Et 6 were synthesized. Thermal decomposition of [(η 6 C 6 Me 6 ) 2 Cr] •+ [C 60 ] •− was studied. The molecular structures of C 60 •C 6 Me 6 and C 60 •C 6 Et 6 were determined.

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The intercalation of meso tetrakis(4 pyridyl)porphyrin zinc, the cationic salts of meso tetrakis(N methylpyridinium 4 yl)porphyrin zinc, and zwitterionic meso tetrakis [N (3 sulfonatopropyl)pyridinium 4 yl]porphyrin zinc from aqueous solutions as well as of meso tetrakis(N methylpyridinium 4 yl)porphyrin zinc from pyridine solutions into V 2 O 5 xerogel was studied. The intercalation complexes obtained were characterized by X ray diffrac tion analysis, TG analysis, IR, and UV reflectance spectroscopy.Intercalation of organic and organometallic com pounds into lamellar xerogel V 2 O 5 •nH 2 O is a convenient method for the synthesis of novel organo inorganic mate rials. 1 The interest in xerogel arose 25 years ago in the connection with the discovery of its semiconducting prop erties and the use of xerogels as antistatic coatings in photographic industry. 2 Different methods of synthesis of vanadium(V) pentoxide xerogel both from inorganic 3 and organic starting materials are known. 4 The first of them was described in 1885. 5 The intercalation compounds based on vanadium(V) pentoxide xerogel can possess pre dominantly ionic or electronic as well as mixed type conductivity. The ionic conductivity is specified by the mobility of the introduced cations, while the electronic one depends on the vanadium(IV) content. The use of compounds intercalated into V 2 O 5 •nH 2 O xerogel as chemical sources of electric energy, as cathode materials, is based on these phenomena. 6 The specific feature of novel organo inorganic materials obtained by intercala tion into V 2 O 5 •nH 2 O xerogel is the retention of catalytic, photochemical, and magnetic properties of intercalation compounds as well as electrochemical properties of the initial xerogel matrix. Thus, one can predict properties of novel materials in different fields of application such as optics, biology, electronics, and catalysis. 7 Currently the intercalation of porphyrins and phthalocyanines into the layered inorganic materials such as layered double hydroxides, 8-11 clays, 12,13 niobates, 14-17 silicates, 18-20 and titanates 21 are especially promising. The intercalation complexes obtained possess better catalytic activity com pared to the starting phthalocyanines and porphyrins. The increase in catalytic activity of the macrocycles interca lated into the layered materials is caused by the fact that the intercalation of porphyrins and phthalocyanines pre vents its inactivating dimerization and crystallization, enhances the selectivity of oxidation and decreases the possibility of formation of μ peroxocomplexes, low active in the oxidation process, between the neighboring molecules due to the better molecular distribution of por phyrins and phthanlocyanines between the layers com pared to solutions. 9,11,12The materials based on the porphyrins intercalated into V 2 O 5 •nH 2 O xerogel possess the high application potential as catalysts, sensors, and modified electrodes. Meso tetrakis(N methylpyridinium 4 yl)porphyrin salts intercalated in V 2 O 5 •nH 2 O xerogel were...

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Ge‐filled carbon nanotubes (CNTs) with an average diameter of 15–100 nm, and Ge‐filled carbon microtubes (CMTs) with an average diameter of 100‐8000 nm, with diamondlike structures have been prepared by metal‐organic (MO)CVD from organogermanium precursors [(C2H5)4Ge and (n‐C4H9)4Ge]. These new composite structures of arrays of CNTs/germanium nanowires (GeNWs) and CMTs/GeNWs have been characterized by powder X‐ray diffraction (XRD), transmission electron microscopy (TEM), atomic force microscopy (AFM), scanning Auger microscopy (SAM), Raman spectroscopy, and field‐emission measurements. The promising field‐emission properties observed for mixtures of CNTs/GeNWs and CMTs/GeNWs form a basis for important applications of these new hybrid nanomaterials.