Thermal decomposition of [Co(en)3][Fe(CN)6]∙ 2H2O: Topotactic dehydration process, valence and spin exchange mechanism elucidation.

Background: The Prussian blue analogues represent well-known and extensively studied group of coordination species which has many remarkable applications due to their ion-exchange, electron transfer or magnetic properties. Among them, Co-Fe Prussian blue analogues have been extensively studied due to the photoinduced magnetization. Surprisingly, their suitability as precursors for solid-state synthesis of magnetic nanoparticles is almost unexplored.

In vitro and in vivo biological activity screening of Ru(III) complexes involving 6-benzylaminopurine derivatives with higher pro-apoptotic activity than NAMI-A.

A series of novel octahedral ruthenium(III) complexes involving 6-benzylaminopurine (L) derivatives as N-donor ligands has been prepared by the reaction of [(DMSO)(2)H][trans-RuCl(4)(DMSO)(2)] with the corresponding L derivative. The complexes 1-12 have the general compositions trans-[RuCl(4)(DMSO)(n-Cl-LH)]⋅xSol (1-3), trans-[RuCl(4)(DMSO)(n-Br-LH)]·xSol (4-6), trans-[RuCl(4)(DMSO)(n-OMe-LH)]·xSol (7-9) and trans-[RuCl(4)(DMSO)(n-OH-LH)]·xSol (10-12); n=2, 3, and 4, x=0-1.5; and Sol = H(2)O, DMSO, EtOH and/or (Me)(2)CO.

Poly[di-μ(2)-chlorido-dichlorido(μ(3)-di-methyl sulfoxide-κO:O:S)(μ(2)-di-methyl sulfoxide-κO:S)ruthenium(III)sodium].

The structure of the title compound, [NaRuCl(4)(C(2)H(6)OS)(2)](n), comprises centrosymmetric [RuCl(2)(DMSO)Na(DMSO)Cl(2)Ru] units (DMSO is dimethyl sulfoxide, C(2)H(6)OS), with two Ru atoms, each lying on a crystallographic centre of inversion, connected via Na atoms, DMSO and chloride ligands into a two-dimensional (110) array. Both Ru(III) atoms are octa-hedrally coordinated by four chloride ligands in the equatorial plane and by two DMSO mol-ecules in apical positions within a RuCl(4)S(2) donor set. The Na atom is surrounded by three chloride anions and three O atoms derived from three DMSO mol-ecules, with the resulting Cl(3)O(3) donor set defining an octa-hedron.

6-(2-Methoxy-benzyl-amino)purine.

The title compound, C(13)H(13)N(5)O, consists of discrete mol-ecules connected by N-H⋯N hydrogen bonds to form infinite chains, with N⋯N separations of 3.0379 (15) and 2.8853 (15) Å.

6-(2-Chloro-benzyl-amino)purinium tetra-chlorido(dimethyl sulfoxide-κO)(nitrosyl-κN)ruthenate(III) monohydrate.

The asymmetric unit of the title complex salt, (C(12)H(11)ClN(5))[RuCl(4)(NO)(C(2)H(6)OS)]·H(2)O, contains a 6-(2-chloro-benzyl-amino)purinium cation, a tetra-chlorido(dimethyl sulfoxide)nitro-sylruthenate(III) anion and one solvent water mol-ecule. The Ru(III) atom is octa-hedrally coordinated by four Cl atoms in the equatorial plane, and by a dimethyl sulfoxide O atom and a nitrosyl N atom in axial positions. The cation is an N3-protonated N7 tautomer.

Ammonium bis(tetraethylammonium) hexacyanidoferrate(III) trihydrate.

In the structure of the title salt, (NH(4))(C(8)H(20)N)(2)[Fe(CN)(6)].3H2O, the O atom of one of the water molecules shares its crystallographic site with the N atom of the ammonium cation in a 1:1 ratio. The second O atom from the two crystallographically independent water molecules is disordered over two positions separated by 0.