Anion-dependent construction of two hexanuclear 3d-4f complexes with a flexible Schiff base ligand.
Two hexanuclear 3d-4f Ni-Eu and Cu-Eu complexes [Eu(4)Ni(2)L(2)(OAc)(12)(EtOH)(2)] (1) and [Eu(4)Cu(2)L(2)(OAc)(12)]·2H(2)O (2) are reported which are formed from the salen type Schiff-base ligand H(2)L (H(2)L = N,N'-bis(3-methoxysalicylidene)butane-1,4-diamine). In both complexes, four Eu(3+) cations are bridged by eight OAc(-) groups and the chain is terminated at each end by two ML (M = Ni and Cu) units. The structures of 1 and 2 were determined by single crystal X-ray crystallographic studies and the luminescence properties of the free ligand and metal complexes in solution were measured.
Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, 78712-0165, TX, USA.
Xiaoping
X
Yang
Christopher
C
Chan
Daniel
D
Lam
Desmond
D
Schipper
Julie M
JM
Stanley
Xiaoyan
X
Chen
Richard A
RA
Jones
Bradley J
BJ
Holliday
Wai-Kwok
WK
Wong
Shengchun
S
Chen
Qun
Q
Chen
D000838:Anions; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D012545:Schiff Bases / Q000737:chemistry*
D000838:Anions; D056831:Coordination Complexes; D008024:Ligands; D012545:Schiff Bases