In the title compound, [Fe(C(12)H(6)O(4))](n), the Fe(II) atom is coordinated by six O atoms from six symmetrically equivalent naphthalene-1,4-dicarboxyl-ate ligands in a strongly distorted octa-hedral geometry. These octa-hedra are connected via common edges into chains that elongate along the a axis, with Fe⋯Fe distances of 2.9712 (4) and 2.9724 (4) Å. The chains are linked via the naphthalen...

The title dimeric complex, [Eu(2)(C(7)H(5)O(2))(6)(C(3)H(7)NO)(2)(H(2)O)(2)], is centrosymmetric, implying that pairs of equivalent Eu(3+) ions and ligands lie trans to each other and that the two Eu(3+) ions have exactly the same coordination environment. Each Eu(3+) ion is nine-coordinated by two bidentate benzoate ligands, two bridging tridentate chelating benzoate ligands, and one dimethylf...

In the title complex, [Zn(C₂O₄)(C₂H₆O₂)](n), the Zn(II) ion is in a distorted octa-hedral environment formed by two O atoms from an ethyl-ene glycol mol-ecule and four O atoms from two oxalate anions. The oxalate anions link the Zn(II) ions, forming a zigzag chain along [010]. The zigzag chains are extended into a three-dimensional network by O-H⋯O hydrogen bonds.

This report examme and evaluates recent steps taken m France to ehmmate temporally the employers’ socml security payroll tax and to mtroduce Governmentsubsldlzed employment trammg programs tn an effort to open up Jobs for the unemployed Much attention has been gwen I” the Umted States and abroad to the problem of the sharp growth m the level of unemployment, parttcularly among those under age 2...

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For nonsingular n× n (n ≥ 6) pentadiagonal matrices P having nonzero entries on its second subdiagonal, we propose a procedure for computing both the determinant detP in O(n) times, and accurate information for obtaining the inverse P−1 in O(n) times. In the general nonsingular case, n ≥ 5, a suitable decomposition of P, as a product of two nonsingular upper Hessenberg matrices, allows us anoth...

Background and objectives: Plumeria rubra L. (Apocynaceae) is a deciduous shrub or small tree cultivated in subtropical and tropical countries.  Its bark is prescribed to treat amoebic dysentery,   dropsy, jaundice, scabies, gonorrhea, venereal affections and wounds. In the present research, we aimed to isolate and identify the chemical constituents of the bark of ...

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