Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Jussi Valkonen"'
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 11, Pp o2952-o2952 (2009)
A small quantity of the title compound, C8H20N22+·2Br−, was formed as a by-product in a reaction between a diamine and an alkyl bromide. The asymmetric unit contains half of a centrosymmetric dication and a bromide anion. In the crystal, weak inte
Externí odkaz:
https://doaj.org/article/6b61b04554254f00854e30461ad14ec3
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 11, Pp o2100-o2100 (2008)
The title compound, C8H20N+·Cl−·H2O, has been prepared by a simple one-pot synthesis route followed by anion exchange using resin. In the crystal structure, the cations are packed in such a way that channels exist parallel to the b axis. These ch
Externí odkaz:
https://doaj.org/article/a1916fa5bc944bfb9a3487e55fd3f99b
Publikováno v:
Journal of Chemical & Engineering Data. 58(7):1893-1908
Eleven asymmetrically quaternized dicationic ammonium-based room-temperature ionic liquids (DRTILs) with bis(trifluoromethanesulfonyl)imide (TFSI) were synthesized and characterized, along with 11 analogous dibromide precursors. Two-step synthesis wa
Publikováno v:
Journal of Molecular Structure. 983:82-92
Eight new monocationic quaternary ammonium (QA) salts with the bis(trifluoromethanesulfonyl)imide (TFSI) anion were prepared by metathesis using our previously reported QA halides as precursors. New salts were characterized both in liquid and solid s
Autor:
Larry Calhoun, Jussi Valkonen, J. Mikko Rautiainen, Gary J. Schrobilgen, Chi-Ming Wong, Jeremy C. P. Sanders, Jarkko Pietikäinen, Scott Brownridge, Reijo Suontamo, Michael P. Murchie, H. Donald Brooke Jenkins, Heikki M. Tuononen, Risto S. Laitinen, Jack Passmore
Publikováno v:
Inorganic Chemistry. 48:1938-1959
The composition of a complex equilibrium mixture formed upon dissolution of (Se6I2)[AsF6]2·2SO2 in SO2(l) was studied by 77Se NMR spectroscopy at −70 °C with both natural-abundance and enriched 77Se-isotope samples (enrichment 92%). Both the natu
Publikováno v:
Journal of Molecular Structure. 922:64-76
Eighteen new and three previously known but insufficiently characterized RR´3N+A− and R2R´2N+A− type (R = 2-ethoxyethyl or 4-methoxybenzyl, R´ = methyl, ethyl, n-propyl, n-butyl, n-pentyl or n-hexyl, A = Br, BF4 or PF6) quaternary ammonium (QA
Publikováno v:
Journal of Molecular Structure. 875:549-559
Nine new quaternary ammonium tetrafluoroborate or hexafluoroborate salts were prepared from analogous bromide or chloride salts using anion exchange reaction in which the corresponding bromide or chloride salt was treated with HBF4 or HPF6 acid in aq
Autor:
Jussi Valkonen, Risto S. Laitinen, Reijo J Suontamo, J. Mikko Rautiainen, Richard D Harcourt, Jack Passmore, Margaret-Jane Crawford, Scott Brownridge, Carsten Knapp, Hongbin Du
Publikováno v:
Inorganic Chemistry. 46:681-699
The bonding in the highly homoatomic npπ−npπ (n ≥ 3)-bonded S2I42+ (three σ + two π bonds), the Se−I π-bonded Se2I42+ (four σ + one π bonds), and their higher-energy isomers have been studied using modern DFT and ab initio calculations a
Publikováno v:
Zeitschrift für Naturforschung B. 62:28-34
Five isostructural bis(dibenzyldimethylammonium) tetrachlorometallate solvate complexes [M = Mn(II), Co(II), Ni(II) or Zn(II)] were crystallized from acetonitrile and/or methanol solutions. The crystal structures are compared to those of the analogou
Publikováno v:
Journal of Molecular Structure. 794:277-287
Bis[dibenzyldimethylammonium]CuBr4, bis[dibenzyldimethylammonium]CuCl4 and bis[dimethyldi(2-phenylethyl)ammonium]CuBr4 were crystallized from acetonitrile and/or dilute HX solutions. Five different kinds of single crystals were obtained. In the case