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  • 2,2′-bipyridine  (2)
  • 1-Benzyl-6-phenylpiperidin-2-one-5-carboxylic acid  (1)
  • Copper complexes  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Crystal and molecular structure of aqua(2,2′-bipyridine)bis(betaine)copper(II) perchlorate monohydrate (1995)
    Springer
    Journal of chemical crystallography 25 (1995), S. 875-878 
    Details
    ISSN: 1572-8854
    Schlagwort(e): Copper(II) ; 2,2′-bipyridine ; betaine ; trimethylammonioacetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract A new monomeric copper(II) complex with 2,2′-bipyridine (bpy) and betaine (bet), [Cu(byy)(bet)2(H2O)](ClO4)2 · H2O, has been prepared and characterized by X-ray crystallography. The complex crystallizes in the triclinic space groupP-1 witha=8.859(2),b=11.191(2),c=14.850(3) Å, α=91.41(1), β=97.19(1), γ=91.97(1)°,V=1459.2(7) Å3, andZ=2. The structure comprises discrete cations [Cu(bpy)(bet)2(H2O)]2+ in which the metal atom is coordinated in a distorted square-pyramidal environment by two oxygen atoms from a pair of monodentate carboxylato ligands [Cu−O=1.950(2) Å] and two nitrogen atoms of a bidentate bpy ligand [Cu−N=1.997(3)−2.005(3) Å] on the basal plane, and one aqua [Cu−O=2.267(3) Å] ligand at the apical position.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01671086
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  • 2
    Digitale Medien
    Digitale Medien
    Crystal and molecular structure of aquabis(2,2′-bipyridine)nitratomanganese(II) nitrate monohydrate (1995)
    Springer
    Journal of chemical crystallography 25 (1995), S. 605-607 
    Details
    ISSN: 1572-8854
    Schlagwort(e): Manganese(II) nitrate ; 2,2′-bipyridine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract A new monomeric manganese(II) nitrate complex with 2,2′-bipyridine (bpy), [Mn(bpy)2(NO3)(H2O)](NO3)·H2O, has been prepared and characterized by X-ray crystallography. The complex crystallizes in the triclinic space group $$P\bar 1$$ witha=9.721(3),b=14.691(5),c=8.578(3) Å, α=106.79(3), β=96.05(3), γ=82.55(3)°,V=1159.9 Å3 andZ=2. The structure comprises discrete cation [Mn(bpy)2(NO3)(H2O)]+ in which the metal atom is coordinated by a pair of bidentate bpy ligands [Mn−N=2.261(4)−2.299(4) Å], a unidentate nitrato [Mn−O=2.284(4) Å] and aqua [Mn−O=2.160(3) Å] ligands in a highly distorted octahedral arrangement.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01667032
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  • 3
    Digitale Medien
    Digitale Medien
    Metal-betaine interactions. Part 17: A study of intradimer Cu · · · Cu distance variation in copper(II) betaine complexes containing [Cu2 (carboxylato-O,O′)4L2]n+ species (1993)
    Springer
    Structural chemistry 4 (1993), S. 247-259 
    Details
    ISSN: 1572-9001
    Schlagwort(e): Copper complexes ; X-ray crystallography ; intradimer Cu ⋯ Cu distance
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Four copper(II) complexes of betaines, [Cu2(BET)4Cl2][Cu(BET)2Cl2]Cl2 (2), [Cu2(pyBET)4Cl2]3[CuCl4]2Cl2 (3), [Cu, (pyBET)4 (H2O)2] (NO3)4 · 2H2O (4), and [Cu2(ppBET)4(H2O)2](ClO4)4 · 4H2O (5), (BET = Me3N+CH2COO−; pyBET = C5H5N+CH2COO−; ppBET=C5H5N+CH2CH2COO−), have been prepared and characterized by X-ray crystallography. These complexes all contain dimeric [Cu2 (carboxylato-O,O′)4L2] structures [basal Cu-O=1.955(4) ∼ 1.991(2), Cu ⋯ Cu=2.602(1) ∼ 2.759(1) Å] with the apical ligand L=Cl− in (2) and (3) [Cu-Cl=2.415(1) ∼ 2.436(3) Å] and L = H2O in (4) and (5) [Cu-OH2=2.158(4) ∼ 2.192(3) Å]; also present are a discrete [Cu(BET)2Cl2] molecule with a compressed tetrahedral CuO2Cl2 chromophore involving two unidentate carboxylate ligands [Cu-O=1.916(2), Cu-Cl=2.254(1) Å] in (2), and a discrete C3v [CuCl4]2− anion in (3). Generally the intradimer Cu ⋯ Cu distance may be correlated to the electronic repulsion of the metal-ligand bonds in the CuO4L chromophore, as well as the steric interaction between the carboxylate moieties and the apical ligand.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00673699
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  • 4
    Digitale Medien
    Digitale Medien
    Crystal structure of a non-stoichiometric channel inclusion complex of 1-benzyl-6-phenylpiperidin-2-one-5-carboxylic acid with acetonitrile (1988)
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 6 (1988), S. 507-513 
    Details
    ISSN: 1573-1111
    Schlagwort(e): 1-Benzyl-6-phenylpiperidin-2-one-5-carboxylic acid ; acetonitrile ; inclusion compound ; hydrogen bonding ; disorder
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract C19H19NO3·x CH3CN (x=0.3),M r=643.35, hexagonal, space groupP61 (No. 169),a=23.027(5),c=5.775(1) Å,V=2652(1) Å3,Z=6. The structure was solved by direct methods and refined toR=0.077 for 1562 observed MoK α reflections. The title heterocyclic carboxylic acid was established as thetrans isomer, with the phenyl and carboxyl substituents occupying pseudo-equatorial and equatorial positions, respectively, of the piperidin-2-one ring in a half-chair conformation. Acid host molecules related by the 61 screw operation are linked by intermolecular O−H...O (cyclic amide) hydrogen bonds to generate an open channel bounded by coaxial intertwined helices each having a pitch of 5c. Within each channel of free diameterca. 6.0 Å the acetonitrile molecules partially occupy highly disordered sites which do not lie on thec axis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00660748
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