caa a22 4500 469059214 CHVBK 20180323132852.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF01053865 doi (NATIONALLICENCE)springer-10.1007/BF01053865 Molecular dynamics and the structure of macrocycles —Solvent acetonitrile interactions [Elektronische Daten] [Meizhen Xu, Sergio Petrucci, Edward Eyring] Microwave complex permittivities,ɛ* =ɛ′ -Jɛ″, are reported in the 1-90 GHz frequency range for the macrocycles 18-crown-6 (18C6) and 15C5 added to acetonitrile in stoichiometric proportions, in the solvent CCl4 at 25°C. Digitized infrared spectra of the ‘CN stretch' ν2 vibration of acetonitrile for the same systems are reported in the 2300-2200 cm−1 spectral region. The macrocycle 12C4 added to CH3CN has also been investigated in the infrared. Both the dielectric relaxation and infrared results are interpreted in terms of macrocycle-acetonitrile interactions, probably involving a methyl-hydrogen to ethereal-oxygen interaction. These interactions with CH3CN diminish in strength according to the sequence: 18C6 > 15C5 > 12C4. Kluwer Academic Publishers, 1992 Crown ethers nationallicence solvent-macrocycle interactions nationallicence microwave dielectric relaxation nationallicence Xu Meizhen Weber Research Institute and Dept. of Chemistry, Polytechnic University, Long Island Center, Route 110, 11735, Farmingdale, NY, USA aut Petrucci Sergio Weber Research Institute and Dept. of Chemistry, Polytechnic University, Long Island Center, Route 110, 11735, Farmingdale, NY, USA aut Eyring Edward Department of Chemistry, University of Utah, 84112, Salt Lake City, UT, USA aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 237-251 0923-0750 12:1-4<237 1992 12 10847 https://doi.org/10.1007/BF01053865 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01053865 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Meizhen Weber Research Institute and Dept. of Chemistry, Polytechnic University, Long Island Center, Route 110, 11735, Farmingdale, NY, USA aut NATIONALLICENCE 700 1- Petrucci Sergio Weber Research Institute and Dept. of Chemistry, Polytechnic University, Long Island Center, Route 110, 11735, Farmingdale, NY, USA aut NATIONALLICENCE 700 1- Eyring Edward Department of Chemistry, University of Utah, 84112, Salt Lake City, UT, USA aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 237-251 0923-0750 12:1-4<237 1992 12 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer