Synthesis, structural characterization and third-order non-linear optical property of new three-dimensional metal-organic framework (M=Ni, Co)

Synthesis, crystal structure and third-order non-linear optical properties of two-dimensional supramolecular polymer [Co2(μ2-4,4′- bipy)2(μ2-be)2(be)2]n

“…The material possessing the self-defocusing perfor- mance may be an excellent one for application in protection of optical sensors. The hyperpolarizability c value (8.30 · 10 À30 esu) of the 1 is comparable with that of the similar compounds, [Co(NCS) 2 (bpms) 2 ] n 2 (1.0 · 10 À30 esu) [21] and K AE Na-[Co 2 (l 6 -btc)(l 2 -ox)(H 2 O) 2 ] 3 (5.03 · 10 À30 esu) [22]. The three compounds possess a similar supramolecular structure but external ligands are different.…”

Cobalt(II), Copper(II), and Zinc(II) Framework Systems Derived from Ditopic Pyridyl-Acetylacetone and Pyridyl-Pyrazole Ligands

“…The design and synthesis of both discrete and extended metallo-assemblies, particularly those with interesting topologies and/or potential technological applications, have received much recent attention. − In particular, interest in new metal−organic frameworks (MOFs) continues to increase, in part motivated by the unusual structures and properties often associated with such materials. , For example, frameworks showing luminescence, nonlinear optical, magnetic spin-crossover, and other unusual magnetic properties have all been documented. It has now also been well-established that a number of porous metal−organic framework materials show very considerable promise as alternatives to zeolites in a range of applications. − In particular, there has been much interest in such materials for gas storage, for use in catalysis, and as ion-exchange materials .…”

Crystal structure of poly[tetraaqua-(μ4-oxalato-κ4 O,O′:O′′,O′′′)-(μ8-benzene-1,2,4,5-tetracarboxylato-κ8 O 1:O 2:O 3:O 4:O 5:O 6:O 7:O

“…from two to eight carboxylate oxygen atoms which can bridge metal ions to create chains, layers, and 3D networks [3][4][5][6]. On the other hand, the oxalate anion is also an attractive small auxiliary ligand, which may construct many structures with H4btec liand and metal ions [7,8]. Hou et al [9] reported a series of compounds associating with Ln 3+ ions, btec 4− ligands and C 2 O4 2− ligands for Ln = Eu, Tb, Dy and Ho.…”