On the other hand, little is known about the allotrope constructed from sp-hybridized carbon atoms, a material commonly called carbyne. Without a defined sample of carbyne to study, synthetic chemists have attempted to model the properties of carbyne through the formation of defined length oligomers...
Carbyne is an allotrope of carbon composed ofsp-hybridized carbon atoms. Although its formation in the laboratory is suggested, no well-defined sample is described. Interest in carbyne and its potential properties remains intense because of, at least in part, technological breakthroughs offered by ot...
拓扑极性表面积(TPSA, Topological Polar Surface Area) sp3杂化碳原子分数(Fsp3,fraction of sp3-hybridized carbon atoms) 酰胺键与水之间形成氢键,这对于多肽的口服生物利用度和细胞膜渗透具有不利影响,这恰好是多肽分子不利于口服递送的原因之一,因为多肽的肽链骨架就是酰胺。高极性表面积也非常不利于口服递送。
Carbyne is an allotrope of carbon composed of sp-hybridized carbon atoms. Although its formation in the laboratory is suggested, no well-defined sample is described. Interest in carbyne and its potential properties remains intense because of, at least in part, technological breakthroughs offered by ...
We have carried out first-principles calculations to explore the energetics and dynamics of Li in graphyne, a novel carbon allotrope consisting of sp–sp2 hybridized carbon atoms, relevant for anode lithium intercalation in rechargeable Li-ion batteries. In contrast to graphite where Li diffusion is...
Evolution in the Palladium-Catalyzed Cross-Coupling of sp- and sp2-Hybridized Carbon Atoms. For Abstract see ChemInform Abstract in Full Text. Rik,R.,Tykwinski - 《Cheminform》 被引量: 689发表: 2003年 ChemInform Abstract: NATURAL ABUNDANCE CARBON-13-CARBON-13 COUPLING OBSERVED VIA DOUBLE-QUANTUM...
In thisstructure, all the carbon atoms are threefold coordinated, similarto the sp2-hybridized atoms in graphene; thus, we namethe poly-cyclooctatetraene framework as PCF-graphene. First-principlescalculations reveal that although PCF-graphene is metastable comparedwith graphene, it is thermally, mecha...
of plausible intermediates in the catalytic mechanism of OxDC, and suggests that removal of an electron to form a radical (with or without the concomitant loss of a proton) may be a general strategy for cleaving the unreactive C-C bonds between adjacent sp(2)-hybridized carbon atoms. ...
To determine which carbon is sp hybridized in the given compounds, we need to analyze the hybridization of each carbon atom based on its bonding.1. Understanding Hybridization: - Carbon can be sp3, sp2, or sp hybridized depe
To determine which compound does not have an sp² hybridized carbon, we will analyze the hybridization of carbon in each of the given compounds: acetone, acetic acid, acetonitrile, and acetamide.1. Understanding sp² Hybridization</