Synthesis of extended polyynes: Toward carbyne

Chalifoux, Wesley A.; Tykwinski, Rik R.

doi:10.1016/j.crci.2008.10.004

Cited by 125 publications

(90 citation statements)

References 96 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…108,109 In these cases, a homologous series of molecules can be made and studied as a function of length, allowing the prediction of properties of carbyne, as well as molecules that are not yet synthetically assessable.…”

Section: Synthesis and Preparation Of Sp-carbon Systems: A Brief Overmentioning

confidence: 99%

Carbon-atom wires: 1-D systems with tunable properties

et al. 2016

View full text Add to dashboard Cite

This review provides a discussion of the current state of research on linear carbon structures and related materials based on sp-hybridization of carbon atoms ( polyynes and cumulenes). We show that such systems have widely tunable properties and thus represent an intriguing and mostly unexplored field for both fundamental and applied sciences. We discuss the rich interplay between the structural, vibrational, and electronic properties focusing on recent advances and the future perspectives of carbon-atom wires and novel hybrid sp-sp 2 -carbon architectures.

show abstract

Section: Synthesis and Preparation Of Sp-carbon Systems: A Brief Overmentioning

confidence: 99%

Carbon-atom wires: 1-D systems with tunable properties

et al. 2016

View full text Add to dashboard Cite

show abstract

“…In the present work we do not deal with the exotic odd-n C n chains, which are chemically less stable and more difficult to synthesize. 26,27 To evaluate χ , starting from the fully relaxed carbyne we stretch or compress a straight C 8 chain section by fixing the positions of the end carbon atoms, and letting all other atoms free to relax to their resulting equilibrium positions under stress. We extract an estimate of χ by fitting Eq.…”

Section: Calculationsmentioning

confidence: 99%

Mechanical properties of carbynes investigated byab initiototal-energy calculations

2012

View full text Add to dashboard Cite

As sp carbon chains (carbynes) are relatively rigid molecular objects, can we exploit them as construction elements in nanomechanics? To answer this question, we investigate their remarkable mechanical properties by ab-initio total-energy simulations. In particular, we evaluate their linear response to small longitudinal and bending deformations and their failure limits for longitudinal compression and elongation.

show abstract

“…Die Synthese des Pentains 3 d gestaltete sich schwieriger, da oxidative Dimerisierungen hier wenig hilfreich sind. [19] In diesem Fall wurde das Triin 5 [20] in einer Friedel-Crafts-Acylierung [21] mit dem aus 4 erhaltenen Säure-chlorid zum Keton 6 umgesetzt. Da 6 nicht isolierbar ist, wurde es nach einer Vorschrift von Ramirez [22] direkt in das Dibromolefin 7 überführt (45 % Ausbeute über zwei Schritte).…”

unclassified