caa a22 4500 463239156 CHVBK 20180405153307.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10947-007-0187-5 doi (NATIONALLICENCE)springer-10.1007/s10947-007-0187-5 Chekhlov A. Institute of Chemical Physics Problems, Russian Academy of Sciences, Chernogolovka aut Second crystal modification of 1,10-diazonia-18-crown-6 dichloride [Elektronische Daten] [A. Chekhlov] The second crystal modification (II) of 1,10-diazonia-18-crown-6 dichloride [H2DA18C6]2+·2Cl−, where [H2DA18C6]2+ is the 1,10-diaza-18-crown-6 dication (DA18C6) with two protonated nitrogen atoms, was investigated by XRD. The monoclinic modification (II) (space group P21/n, a = 9.600 Å, b = 5.689 Å, c = 15.749 Å, β = 91.03°, Z = 2) was solved by direct methods and refined by full-matrix least squares analysis in an anisotropic approximation to R = 0.032 for all 2494 independent reflections collected (CAD-4 automatic diffractometer, λMoK α). In modification II, the conformation of the DA18C6 dication and the ion packing differ from those in triclinic modification I investigated previously. Springer Science+Business Media, Inc., 2007 single crystal X-ray analysis nationallicence crystal modifications nationallicence salts of 1,10-diaza-18-crown-6 nationallicence chlorides nationallicence Journal of Structural Chemistry Springer US 48/6(2007-11-01), 1160-1163 0022-4766 48:6<1160 2007 48 10947 https://doi.org/10.1007/s10947-007-0187-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10947-007-0187-5 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chekhlov A. Institute of Chemical Physics Problems, Russian Academy of Sciences, Chernogolovka aut NATIONALLICENCE 773 0- Journal of Structural Chemistry Springer US 48/6(2007-11-01), 1160-1163 0022-4766 48:6<1160 2007 48 10947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer