caa a22 4500 463184912 CHVBK 20180406164850.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10870-007-9205-x doi (NATIONALLICENCE)springer-10.1007/s10870-007-9205-x Synthesis and Structure Determination of 1, 4, 7, 11, 14, 17, 21, 24, 27-Nonaoxatriacontan-8, 10, 18, 20, 28, 30-Esaone [Elektronische Daten] [Dario Pasini, Michele Zema, Pierpaolo Righetti] The title compound crystallizes in the trigonal space group R-3, with unit-cell parameters: a=23.261(4), c=9.537(2)Å; λ(MoKα)=0.71073Å, V=4469(2)Å3, and Z=6. The structure has been solved by direct methods using X-ray diffraction techniques. The final reliability index for the computed structure is 0.0826 for 929 observed reflections and 121 refined parameters. Crown ether adopts an almost circular shape and macrocycles are piled up in a columnar arrangement forming tubular nanochannels. The channels are filled with guest CDCl3 molecules, characterised by rotational disorder. Springer Science+Business Media, LLC, 2007 Crystal structure nationallicence Direct methods nationallicence Crown ethers nationallicence Nanotubular structures nationallicence Pasini Dario Dipartimento di Chimica Organica, Università di Pavia, Viale Taramelli 10, 27100, Pavia, Italy aut Zema Michele Dipartimento di Scienze della Terra, Università di Pavia, Via Ferrata 1, 27100, Pavia, Italy aut Righetti Pierpaolo Dipartimento di Chimica Organica, Università di Pavia, Viale Taramelli 10, 27100, Pavia, Italy aut Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/8(2007-08-01), 537-541 1074-1542 37:8<537 2007 37 10870 https://doi.org/10.1007/s10870-007-9205-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10870-007-9205-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pasini Dario Dipartimento di Chimica Organica, Università di Pavia, Viale Taramelli 10, 27100, Pavia, Italy aut NATIONALLICENCE 700 1- Zema Michele Dipartimento di Scienze della Terra, Università di Pavia, Via Ferrata 1, 27100, Pavia, Italy aut NATIONALLICENCE 700 1- Righetti Pierpaolo Dipartimento di Chimica Organica, Università di Pavia, Viale Taramelli 10, 27100, Pavia, Italy aut NATIONALLICENCE 773 0- Journal of Chemical Crystallography Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 37/8(2007-08-01), 537-541 1074-1542 37:8<537 2007 37 10870 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer