Layer-chain carbons

Melnitchenko, V.M.; Nikulin, Yu. N.; Sladkov, A. M.

doi:10.1016/0008-6223(85)90188-5

Cited by 15 publications

(4 citation statements)

References 7 publications

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“…The co-existence of carbon atoms in different types of hybridization was proposed for a number of structures. The presence of Sp3 -sp layer-chain carbons was suggested in a study on the behavior of the abnormal reflection of d = 336 pm in a number of carbon substances [28]. It is also established that the fullerenes are built from a mix of Sp2 _Sp3 carbon atoms.…”

Section: Experimental Techniques Used In High P-t Carbyne Synthesismentioning

confidence: 98%

Dynamic Pressure Synthesis of Carbynes

Kleiman

Yamada

Sawaoka

et al. 1999

Physics and Chemistry of Materials With Low-Dimensional Structures

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Section: Experimental Techniques Used In High P-t Carbyne Synthesismentioning

confidence: 98%

Dynamic Pressure Synthesis of Carbynes

Kleiman

Yamada

Sawaoka

et al. 1999

Physics and Chemistry of Materials With Low-Dimensional Structures

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“…The nature of polymeric substances with a cumulated double-bond chain with both virtually equal double and alternating triple and single carbon-carbon bonds are well-known in the literature [1]. Such structures are assumed for the carbyne that is a new allotropic modification of carbon [2][3][4]. A review of the synthesis methods for such compounds was reported in [5].…”

Section: Introductionmentioning

confidence: 99%

Polycondensation of Hexamethylenetetramine in Anhydrous Acid Media as a New Approach to Carbyne-Like Materials and Its Application as Dispersant of Carbon Materials

Gerasimova

Alekhina

García‐Cruz

et al. 2019

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Aminocumulene (AC), a technical name that results from the hexamethylenetetramine polycondensation in anhydrous sulfuric acid, was successfully performed toward the synthesis of oligomeric cumulenic compounds made up of carbyne-like (=C=C)x fragments as a main moiety together with amino endcapping groups. The tentative mechanism for the synthesis of the soluble and insoluble AC likely included the participation of carbene species as an intermediate. Spectral properties obtained from UV-Vis, infrared, and Raman spectroscopies, and surface chemistry analysis through X-ray photoelectron spectroscopy of the soluble AC confirmed the presence of a mixture of linear and branched aminocumulene-based oligomers. AC displayed high performance as a dispersant and stabilizer agent of both multi-walled carbon nanotubes and graphene in aqueous solutions after powerful insonation treatment under controlled temperature compared to the most commonly used dispersant agents. Thereby, AC is vitally important for the preparation of carbonaceous materials based on nanoinks in a wide variety of fields.

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“…Heimann et al 7 assign to the first group of "mixed" form of carbon several hypothetical structures such as polycyclic 3D-carbon networks [8][9][10][11][12] (including metallic carbon), 9 superdiamond, 13,14 and layer-chain carbons. 15,16 A new class of pyrolytic carbon materials was prepared by chemical vapor infiltration of microporous zeolite powder followed by removal of the zeolitic substrate. 17 The second group includes carbon forms for which the hybridization of a carbon atom can be expressed as sp n , where n can be a nonintegral but a fractional number.…”

Section: Introductionmentioning

confidence: 99%

“…The first one comprises mixed short-range order carbon forms of more or less randomly arranged carbon atoms: various ill-defined carbon materials such as amorphous carbon, diamond-like carbon, and vitreous carbon as well as various carbon blacks, soot, cokes, etc. Heimann et al assign to the first group of “mixed” form of carbon several hypothetical structures such as polycyclic 3D-carbon networks − (including metallic carbon), superdiamond, , and layer-chain carbons. , A new class of pyrolytic carbon materials was prepared by chemical vapor infiltration of microporous zeolite powder followed by removal of the zeolitic substrate . The second group includes carbon forms for which the hybridization of a carbon atom can be expressed as sp n , where n can be a nonintegral but a fractional number .…”

Section: Introductionmentioning

confidence: 99%

Modeling of Nontraditional Structures of Carbon

Scholtzová

Nagy

Putyera

2001

J. Chem. Inf. Comput. Sci.

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The present contribution deals with one of the possible structure types of nongraphitic carbon adsorbents. The proposed structure consists of infinite strips of condensed aromatic rings arranged into a hexagonal honeycomb-like structure with the edge formed only by sp2 carbon atoms. Quantum chemical calculations were performed at the UHF/STO-3G level using the CRYSTAL95 program package for periodical approach. The extremely high adsorption ability of some low-density paramagnetic carbon forms can be elucidated by the presence of the sp2 honeycomb carbon structure and the specific properties of its electronic structure.

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Layer-chain carbons

Cited by 15 publications

References 7 publications

Dynamic Pressure Synthesis of Carbynes

Dynamic Pressure Synthesis of Carbynes

Polycondensation of Hexamethylenetetramine in Anhydrous Acid Media as a New Approach to Carbyne-Like Materials and Its Application as Dispersant of Carbon Materials

Modeling of Nontraditional Structures of Carbon

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