Heptaaquatetra-mu3-hydroxy-hexa-mu2-L-leucine-(L-leucine)tetraytterbium(III) tetrachlorozinc(II) trichlorohydroxyzinc(II) tetrachloride octahydrate.
The title bimetallic compound, [Yb4(mu3-OH)4(C6H13NO2)7(H2O)7][ZnCl4][ZnCl3(OH)]Cl4.8H2O, was synthesized at near physiological pH (6.0). The compound exhibits some novel structural features, including an asymmetric [Yb4(mu3-OH)4(L-leucine)7(H2O)7]8+ complex cation in which four OH groups act as bridging ligands, linking four Yb3+ cations into a Yb4O4 structural unit. Each pair of adjacent Yb3+ ions is further bridged by one carboxy group from a leucine ligand. Water molecules and a monodentate leucine ligand also coordinate to Yb3+ ions, completing their eight-coordinate square-antiprismatic coordination. The Yb4(mu3-OH)4(L-leucine)7(H2O)7]8+ cation, the [ZnCl4]2-, [ZnCl3OH]2- and Cl- anions, and the lattice water molecules are linked via hydrogen bonds.
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, People's Republic of China.
Jin Ping
JP
Wang
Chun Ji
CJ
Niu
Ning Hai
NH
Hu
D018360:Crystallography, X-Ray; D004151:Dipeptides / Q000737:chemistry; D006860:Hydrogen Bonding; D007930:Leucine / Q000031:analogs & derivatives*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010455:Peptides / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D015018:Ytterbium / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*; D017967:Zinc Compounds / Q000737:chemistry
D004151:Dipeptides; D009942:Organometallic Compounds; D010455:Peptides; D017967:Zinc Compounds; C496844:heptaaquatetra-mu(3)-hydroxy-hexa-mu(2)-leucine-(leucine)tetraytterbium(III) tetrachlorozinc(II) trichlorohydroxyzinc(II) tetrachloride; D014867:Water; C027819:polyleucine; D007930:Leucine; D015032:Zinc; D015018:Ytterbium