Bisquinolinium tetrachlorocuprate dihydrate

π–π Stacking in bis(quinolinium) tetrachlorozincate dihydrate

“…In contrast to what is observed in bisquinolinium tetrachlorocadmate(II) (Paulus & Gottlicher, 1969), in (I), as well as in bis(quinolinium) tetratrachlorocuprate (Lynch & McClenaghan, 2002), the charge-assisted MX 2 Á Á ÁH-N interaction is not observed due to the interference of a water molecule. Nevertheless the expectedinteractions are observed and act, in the three structures, as an important and predictable structural organizing tool.…”

Synthesis, structure, and magnetic properties of a family of copper(II) complexes and salts of isoquinoline: (Isoquinoline) Cu(X)2 [X = Cl, Br] and (isoquinolinium)2CuX4(H2O) [X = Cl, Br; n = 0,1]

“…Cu-Cl bond lengths of 4 are comparable to bis(8-methylquinolinium) tetrachlorocuprate(II), 20 bis(2-methylquinolinium) tetrachlorocuprate(II), 34 and bis(quinolinium) tetrachlorocuprate(II) dihydrate. 16 Bond angles of 4, with its highly distorted CuCl4 2ion, do not compare to any of these structures. The two unique isoquinolinium rings hydrogen bond, through the N-H hydrogen, to the CuCl4 2ion ( Table 3).…”

“…13,14 There has been extensive research into metal halide complexes and salts with quinoline (Quin) and substituted quinoline molecules as ligands or cations (in their protonated form, QuinH), of the general form (Quin)2MX2 and (QuinH)2 [MX4], and into the relationship between the structures of those compounds and their magnetic behavior. 15,16,17,18,19,20,21,22 Quinoline is a useful ligand due to its size, which can effectively separate the magnetic species into a variety of lattice types. Ideally, this keeps the magnetic exchange in one or two dimensions, leading to changes in the nature of the magnetic interactions.…”

“…Two quinolinium tetrabromocuprate salts, (QuinH)2CuBr4• (H2O)n (n=0,2), have been reported. 15 In addition, several quinolinium tetrachlorometalates of the form (QuinH)2MCl4• (H2O)n (n=0,2), have been produced with copper, 16 zinc, 17 and iron. 21 A range of substituted quinoline metal complexes has also been reported.…”

2-(Cyclohexylamino)-1,4-naphthoquinone

“…The cyclohexyl group is in the chair conformation with an average C-C bond length of 1.496 (2) Å which lies well within the range of classical values. The central C10-N1-C11 angle is 126.73 (12) , a value which is slightly more obtuse than that found in the related compound 3-chloro-2-pyrrolidino-1,4-naphthoquinone (Lynch et al, 2002). An acute intramolecular N-HÁ Á ÁO bond (Table 1) helps to establish the molecular conformation of (I).…”