منابع مشابه
Polycations. 18. The synthesis of polycationic lipid materials based on the diamine 1,4-diazabicyclo[2.2.2]octane.
Herein is reported the preparation of several series of polyammonium salts that serve as cationic lipids or precursors thereof, and are structurally based on the parent diamine 1,4-diazabicyclo[2.2.2]octane (dabco). Through selective alkylation of dabco a variety of di- and tetracationic lipid species and precursors thereof have been prepared. The resultant materials are of significant interest...
متن کاملGauge - invariant formulation of NN → NN γ
H. Haberzettl1,* and K. Nakayama2,3,† 1Institute for Nuclear Studies and Department of Physics, The George Washington University, Washington, DC 20052, USA 2Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA 3Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425 Jülich, Germany (Received 8 November 2010; revised manuscript r...
متن کامل3-Methylbenzene-1,2-diamine
The title compound, C7H10N2, was synthesized from 2-methyl-6-nitro-aniline by a reduction reaction. In the crystal, molecules are linked via N-H⋯N hydrogen bonds, forming two-dimensional networks lying parallel to (100). These networks are stabilized by C-H⋯π and N-H⋯π inter-actions.
متن کاملPyridine-2,3-diamine
The mol-ecule of the title pyridine derivative, C(5)H(7)N(3), shows approximately non-crystallographic C(s) symmetry. Intra-cyclic angles cover the range 117.50 (14)-123.03 (15)°. In the crystal, N-H⋯N hydrogen bonds connect mol-ecules into a three-dimensional network. The closest inter-centroid distance between two π-systems occurs with the c-axis repeat at 3.9064 (12) Å.
متن کامل3-Nitrobenzene-1,2-diamine
The mol-ecule of the title compound, C(6)H(7)N(3)O(2), a derivative of o-phenyl-enediamine, nearly shows non-crystallographic C(s) symmetry. C-C-C angles span the range 116.25 (11)-122.35 (11)°. In the crystal, inter-molecular N-H⋯O and N-H⋯N hydrogen bonds connect mol-ecules into undulating sheets perpendicular to the crystallographic a axis. A weak intra-molecular N-H⋯O hydrogen bond is also ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809050867