Matches in SemOpenAlex for { <https://semopenalex.org/work/W2333348569> ?p ?o ?g. }
- W2333348569 endingPage "408" @default.
- W2333348569 startingPage "400" @default.
- W2333348569 abstract "Two types of liquid crystalline [2]rotaxanes based on a conventional tetracatenar motif (a rod-shaped molecule with two side chains at each end) have been prepared. Dicationic compounds with ester stoppers and tetracationic materials with pyridinium stoppers are compared to each other and their dumbbell shaped analogs. Since the ionic core contributes about 70% to the overall length and molecular weight of the molecules, sheltering the ionic cores with an interlocked neutral macrocycle has considerable effect on the mesomorphism and thermal stability of the materials. The influence of the sheltering macrocycle, the numbers of charges on the core and the size and nature of the side chains (aliphatic vs siloxane) were probed. [2]Rotaxanes with linear side chains and minimum ratios of chain-to-core volumes of about 0.35 and 0.30 for tetra- and dicationic compounds, respectively, display smectic liquid crystal phases. Larger ratios increase the temperature range of the smectic A phases beyond the decomposition temperatures; a disadvantage for processing because no stable isotropic liquid phase is available. The change from tetra- to dicationic [2]rotaxanes increased not only the fluidity of their smectic A phases but also their thermal and chemical stability. Branched side chains (2-hexyldecyl) disfavor the formation of lamellar mesophases and, instead, induce higher ordered soft crystal phases. No liquid crystal phases but soft crystal phases are observed for the analogous di- and tetracationic compounds without an ion sheltering interlocked macrocycle (dumbbells)." @default.
- W2333348569 created "2016-06-24" @default.
- W2333348569 creator A5039500176 @default.
- W2333348569 creator A5045495479 @default.
- W2333348569 creator A5079237751 @default.
- W2333348569 date "2012-12-24" @default.
- W2333348569 modified "2023-10-07" @default.
- W2333348569 title "Mesomorphic [2]Rotaxanes: Sheltering Ionic Cores with Interlocking Components" @default.
- W2333348569 cites W1577108270 @default.
- W2333348569 cites W1678544033 @default.
- W2333348569 cites W1966532921 @default.
- W2333348569 cites W1967544546 @default.
- W2333348569 cites W1971507790 @default.
- W2333348569 cites W1972991018 @default.
- W2333348569 cites W1975361600 @default.
- W2333348569 cites W1981015385 @default.
- W2333348569 cites W1983775108 @default.
- W2333348569 cites W1985472505 @default.
- W2333348569 cites W1986510139 @default.
- W2333348569 cites W1986997934 @default.
- W2333348569 cites W1992080448 @default.
- W2333348569 cites W1993238869 @default.
- W2333348569 cites W1996612743 @default.
- W2333348569 cites W1996723665 @default.
- W2333348569 cites W1997158083 @default.
- W2333348569 cites W1998794754 @default.
- W2333348569 cites W2007036666 @default.
- W2333348569 cites W2007300760 @default.
- W2333348569 cites W2015426005 @default.
- W2333348569 cites W2018249864 @default.
- W2333348569 cites W2019149938 @default.
- W2333348569 cites W2021090441 @default.
- W2333348569 cites W2023843902 @default.
- W2333348569 cites W2029763296 @default.
- W2333348569 cites W2031467378 @default.
- W2333348569 cites W2032721634 @default.
- W2333348569 cites W2040597903 @default.
- W2333348569 cites W2041244386 @default.
- W2333348569 cites W2041383276 @default.
- W2333348569 cites W2043096625 @default.
- W2333348569 cites W2044298429 @default.
- W2333348569 cites W2046210844 @default.
- W2333348569 cites W2046801766 @default.
- W2333348569 cites W2048826979 @default.
- W2333348569 cites W2052174408 @default.
- W2333348569 cites W2055739056 @default.
- W2333348569 cites W2056250652 @default.
- W2333348569 cites W2059678919 @default.
- W2333348569 cites W2059907717 @default.
- W2333348569 cites W2061402357 @default.
- W2333348569 cites W2061850388 @default.
- W2333348569 cites W2066832018 @default.
- W2333348569 cites W2067380456 @default.
- W2333348569 cites W2069663629 @default.
- W2333348569 cites W2071943986 @default.
- W2333348569 cites W2072634709 @default.
- W2333348569 cites W2073818418 @default.
- W2333348569 cites W2074483714 @default.
- W2333348569 cites W2078056963 @default.
- W2333348569 cites W2083839006 @default.
- W2333348569 cites W2086719954 @default.
- W2333348569 cites W2087160402 @default.
- W2333348569 cites W2089417560 @default.
- W2333348569 cites W2089522514 @default.
- W2333348569 cites W2092153855 @default.
- W2333348569 cites W2106841382 @default.
- W2333348569 cites W2108055398 @default.
- W2333348569 cites W2112192852 @default.
- W2333348569 cites W2117755495 @default.
- W2333348569 cites W2128211823 @default.
- W2333348569 cites W2141947008 @default.
- W2333348569 cites W2144519884 @default.
- W2333348569 cites W2150437586 @default.
- W2333348569 cites W2150512704 @default.
- W2333348569 cites W2151430274 @default.
- W2333348569 cites W2158882575 @default.
- W2333348569 cites W2165357564 @default.
- W2333348569 cites W2167883671 @default.
- W2333348569 cites W2336837727 @default.
- W2333348569 cites W2340838298 @default.
- W2333348569 cites W2341023421 @default.
- W2333348569 cites W3017190668 @default.
- W2333348569 cites W3021714871 @default.
- W2333348569 cites W4210564825 @default.
- W2333348569 cites W4210999115 @default.
- W2333348569 doi "https://doi.org/10.1021/ja309558p" @default.
- W2333348569 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23215351" @default.
- W2333348569 hasPublicationYear "2012" @default.
- W2333348569 type Work @default.
- W2333348569 sameAs 2333348569 @default.
- W2333348569 citedByCount "35" @default.
- W2333348569 countsByYear W23333485692013 @default.
- W2333348569 countsByYear W23333485692014 @default.
- W2333348569 countsByYear W23333485692015 @default.
- W2333348569 countsByYear W23333485692016 @default.
- W2333348569 countsByYear W23333485692017 @default.
- W2333348569 countsByYear W23333485692018 @default.
- W2333348569 countsByYear W23333485692019 @default.