Amines 2,2 -bipyridyl

C1ftH2 5CUN7O8, Bis(2-aminoethyl)amine(2,2 -bipyridyl)copper(II) nitrate dihydrate, 45B, 1037... 

Compounds analogous to the cobaltammines may be similarly obtained using chelating amines such as ethythenediamine or bipyridyl, and these too have played an important role in stereochemical studies. Thus ct5-[Co(cn)2(NH3)Cl] was resolved into d(+) and /(—) optical i.so-mers by Werner in 1911 thereby demonstrating. to all but the most determined doubters, its octahedral stereochemistry. More recently, the absolute configuration of one of the optical isomers of [Co(en)3] was determined (.sec Panel on p, 1125),... 

Figure 15 Examples of artificial collagen model peptide knots, (a) Regioselective artificial cystine knot, (b) dilysine scaffold,(c) c/s,c/s-1,3,5-trimethylcyclohexane-1,3,5-tricarboxylic acid Kemp tri acid , (d) TREN-(suc-OH)3, (Tris(2-aminoethyl)amine) succinic acid, (e) Fe + [2,2 -bipyridyl-peptide]3, " (f) monoalkyl chains, " (g) Boc-/3-Ala-TRIS-(OH)3 knot, and (h) N-terminal GFGEEG link. ...

V,Af-Dimethylaniline A A,A, AT-Tetramethyl-p-phenylenediamine Cyclic amines 4,4 -Bipyridyl Quinoline Pyridine A-oxide Pyridinium chloride Hydroxides CsOH LiOH NaOH Triton B6 Alkylamines Ammonia Methylamine Ethylamine Propylamine Butylamine Decylamine Dodecylamine Tridecylamine Tetradecylamine Pentadecylamine Hexadecylamine Heptadecylamine Octadecylamine Tributylamine Miscellaneous Ammonium acetate Hydrazine Potassium formate Guanidine... 

Styrene Polymers. Polystyrene-divinylbenzene immobilized 3d metal bipyridyl-amine complexes also exhibit enhanced thermal stability as in the case with the polyacrylics. Biswas and Mukherjee [18] more recently reported the enhancement of thermal stability of 3d metal ion loaded PS-DVB-BPA-M(II)... 

Chromium(II) complexes of bipyridyls, terpyridyl and the phenanthrolines have been discussed in Section 35.2.2.1. Complexes of the ligands 2-aminomethylpyridine (pic, 2-picolyl-amine) and 8-aminoquinoline (amq), which have one heterocyclic and one amino nitrogen donor atom, have been prepared by methods similar to those in Scheme 10. The bis(amine) complexes are typical high-spin, distorted octahedral complexes, and the mono(amine) complexes, from their antiferromagnetic behaviour and reflectance spectra, are six-coordinate, halide-bridged polymers (Table 15).103 No tris(amine) complexes could be prepared so the attempt to find spin isomeric systems in octahedral chromium(II) systems was unsuccessful ([Cr(en)3]X2 are high-spin and [Cr(bipy)3]X3 and [CrX2(bipy)2] low-spin). 

---