Ueberführung von o-Nitro- und o, p-Dinitro-Benzylchlorid in Acridinderivate

[An unusual suicide with dinitro-o-cresol].

catena-Poly[[[diaqua­cobalt(II)]-μ-(3,5-dinitro-2-oxidobenzoato)-κ3 O 1,O 2:O 1′-[tetra­aqua­cobalt(II)]-μ-(3,5-dinitro-2-oxidobenzoato)-κ3 O 1:O 1′,O 2] dihydrate]

In polymeric title compound, {[Co(2)(C(7)H(2)N(2)O(7))(2)(H(2)O)(6)]·2H(2)O}(n), obtained from the reaction of 3,5-dinitro-salicylic acid with cobalt(II) acetate, both Co(II) atoms are located on inversion centres and exhibit a distorted octahedral coordination geometry. The coordin-ation sphere about one Co(II) atom comprises four O-atom donors from two bidentate chelate (O(phenolate) and O(ca...

O,O′-Di-p-tolyl­pyrophospho­ric bis­(dimethyl­amide)

The title compound, C(18)H(26)N(2)O(5)P(2), was obtained accidently from the reaction between N,N-dimethyl-phospho-ramido-chloridic acid 4-methyl phenyl ester, NaNO(2) and 18-crown-6 in acetonitrile under reflux conditions. The asymmetric unit contains one half-mol-ecule, the complete mol-ecule being generated by crystallographic twofold symmetry, with the bridging O atom lying on the rotation ...

2,3-O-Isopropyl­idene-1-O-p-tolyl­sulfonylglycerol

In the title compound, C(13)H(18)O(5)S, the five-membered ring has an envelope conformation. The packing involves four C-H⋯O inter-actions, three of which combine to form layers of mol-ecules parallel to the bc plane.

Funktionalisierte Siliciumverbindungen mit o-Tetramethyl- und o-Pentamethylcyclopentadienylalkyl-Liganden: Molekulare Bausteine zur Darstellung von Metall-haltigen Polymeren *

Peralkylated cyclopentadiene systems of the type Me,C,(CH,),Si(Me),Y,_,, which possess cyclopentadiene units connected with a functionalized silane fragment by an alkylidene spacer group, are prepared via two routes. As an example of the first route, the disiloxane [Me,C,(CH,),Si(Me),],O (2) has been synthesized from the corresponding iodo compound [I(CI-Iz),Si(Me),],O (1) by reaction with Me&K...