Crystal structure of bis-{3-(3,4-di-meth-oxy-phen-yl)-5-[6-(pyrazol-1-yl)pyridin-2-yl]-1,2,4-triazol-3-ato}iron(II)-methanol-chloro-form (1/2/2).

The unit cell of the title compound, [Fe(CHNO)]·2CHOH·2CHCl, consists of a charge-neutral complex mol-ecule, two methanol and two chloro-form mol-ecules. In the complex, the two tridentate 2-(5-(3,4-di-meth-oxy-phen-yl)-1,2,4-triazol-3-yl)-6-(pyrazol-1-yl)pyridine ligands coordinate to the central Fe ion through the N atoms of the pyrazole, pyridine and triazole groups, forming a pseudo-octa-hedral coordination sphere. Neighbouring tapered mol-ecules are linked through weak C-H(pz)⋯π(ph) inter-actions into one-dimensional chains, which are joined into two-dimensional layers through weak C-H⋯N/C/O inter-actions.

Crystal structure of caesium dimethyl--benzoyl-amido-phosphate monohydrate.

The caesium salt of dimethyl--benzoyl-amido-phosphate, namely, aqua-[di-meth-yl (-benzoyl-amido-κ)phospho-nato-κ]caesium, [Cs(CHNOP)(HO)] or Cs·HO, is reported. The compound crystallizes in the monoclinic crystal system in the 2/ space group and forms a mono-periodic polymeric structure due to the bridging function of the dimethyl--benzoyl-amido-phosphate anions towards the caesium cations.

Crystal structure of bis-{3-(3,4-di-methyl-phen-yl)-5-[6-(1-pyrazol-1-yl)pyridin-2-yl]-4-1,2,4-triazol-4-ido}iron(II) methanol disolvate.

As a result of the high symmetry of the 2 structure, the asymmetric unit of the title compound, [Fe(CHN)]·2MeOH, consists of half of a charge-neutral complex mol-ecule and a discrete methanol mol-ecule. The planar anionic tridentate ligand 2-[5-(3,4-di-methyl-phen-yl)-4-1,2,4-triazol-3-ato]-6-(1-pyrazol-1-yl)pyridine coordinates the Fe ion meridionally through the N atoms of the pyrazole, pyridine and triazole groups, forming a pseudo-octa-hedral coordination sphere of the central ion. The average Fe-N bond distance is 1.

Crystal structure of bis-{3-(3-bromo-4-methoxyphenyl)-5-[6-(1-pyrazol-1-yl)pyridin-2-yl]-1,2,4-triazol-3-ato}-iron(II) methano-l disolvate.

The unit cell of the title compound, [Fe(CHBrNO)]·2MeOH, consists of a charge-neutral complex mol-ecule and two independent mol-ecules of methanol. In the complex mol-ecule, the two tridentate ligand mol-ecules 2-[5-(3-bromo-4-meth-oxy-phen-yl)-4-1,2,4-triazol-3-yl]-6-(1-pyrazol-1-yl)pyridine coordinate to the Fe ion through the N atoms of the pyrazole, pyridine and triazole groups, forming a pseudo-octa-hedral coordination sphere around the central ion. In the crystal, neighbouring asymmetric mol-ecules are linked through weak C-H(pz)⋯π(ph) inter-actions into chains, which are then linked into layers by weak C-H⋯N/C inter-actions.

Crystal structure of ( , -bis-{[1-(4-meth-oxy-benz-yl)-1-1,2,3-triazol-4-yl]methyl-idene}-2,2-di-meth-yl-propane-1,3-di-amine)-bis-(thio-cyanato)-iron(II).

The unit cell of the title compound, [Fe(NCS)(CHNO)], consists of eight charge-neutral complex mol-ecules. In the complex mol-ecule, the tetra-dentate ligand , -bis-{[1-(4-meth-oxy-benz-yl)-1-1,2,3-triazol-4-yl]methyl-ene}-2,2-di-methyl-propane-1,3-di-amine coordinates to the Fe ion through the N atoms of the 1,2,3-triazole and aldimine groups. Two thio-cyanate anions, coordinated through their N atoms, complete the coordination sphere of the central Fe ion.

Crystal structure of the mixed methanol and ethanol solvate of bis-{3,4,5-trimeth-oxy-'-[1-(pyridin-2-yl)ethyl-idene]benzohydrazidato}zinc(II).

The unit cell of the title compound, [Zn(CHNO)]·CHO·CHO, contains two complex mol-ecules related by an inversion centre, plus one methanol and one ethanol solvent molecule per complex molecule. In each complex, two deprotonated pyridine aroylhydrazone ligands {3,4,5-trimeth-oxy-'-[1-(pyridin-2-yl)ethyl-idene]benzohydrazide} coordinate to the Zn ion through the N atoms of the pyridine group and the ketamine, and, additionally, through the O atom of the enolate group. In the crystal, dimers are formed by π-π inter-actions between the planar ligand moieties, which are further connected by C⋯O and C⋯C inter-actions.

Crystal structure and magnetic properties of bis-[butyl-tris-(1-pyrazol-1-yl)borato]iron(II).

The asymmetric unit of the title compound, [Fe(CHBN)], contains two half independent complex mol-ecules. In each complex, the Fe atom is located on an inversion center and is surrounded by two scorpionate ligand butyl-tris-(1-pyrazol-1-yl)borate mol-ecules that coordinate to the iron(II) ion through the N atoms of the pyrazole groups. The two independent complex mol-ecules differ essentially in the conformation of the butyl substituents.

Crystal structure and magnetic properties of (tris-{4-[1-(2-meth-oxy-eth-yl)imidazol-2-yl]-3-aza-but-3-enyl}amine)-iron(II) bis-(hexa-fluorido-phosphate).

In the complex cation of the title compound, [Fe(CHNO)](PF), the tripodal tris-{4-[1-(2-meth-oxy-eth-yl)imidazol-2-yl]-3-aza-but-3-en-yl}amine ligand is coordinated to an Fe ion through the nitro-gen atoms of three imidazole and three imino groups. The Fe atom exhibits a distorted octa-hedral geometry. In the crystal, l and d anti-podes are arranged in layers in the plane.

Crystal structure of ()-2,6-dimeth-oxy-4-{[(4-meth-oxy-phen-yl)imino]-meth-yl}phenol.

In the title compound, CHNO, the dihedral angle between benzene rings is 72.7 (2)°. The meth-oxy groups are rotated by 2.

Lanthanide mixed-ligand complexes of the [Ln(CAPh)3(Phen)] and [LaxEu1-x(CAPh)3(Phen)] (CAPh = carbacylamidophosphate) type. A comparative study of their spectral properties.

A series of complexes Ln(Pip)3(Phen) (Ln(iii) = La, Ce-Nd, Sm-Lu, Y; HPip (CAPh type ligand) = 2,2,2-trichloro-N-(dipiperidin-1-yl-phosphoryl)acetamide, Phen = 1,10-phenanthroline) has been synthesized. The lanthanum(iii) doped europium(iii) complexes ([LaxEu1-x(Pip)3(Phen)], x = 0.99, 0.

Crystal structure of {μ-6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}(meth-anol)(nitrato)nickel(II)sodium.

In the molecular structure of the title compound, [NaNi(C18H18N2O4)(NO3)(CH3OH)], the Ni(2+) ion has a slightly distorted square-planar coordination environment defined by two N and two O atoms which belong to a Schiff base ligand, viz. 6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolate. Seven O atoms form the coordination environment of the Na(+) ion: four from the Schiff base ligand, two from a bidentate chelating nitrate anion and one O atom from a coordinating methanol mol-ecule.

{Dimeth-yl [(phenyl-sulfon-yl)amido-]phosphato-κ(2) O,O'}bis-(tri-phenylphosphane-κP)copper(I).

In the title complex, [Cu(C8H11NO5PS)(C18H15P)2], the Cu(I) ion is coordinated by two tri-phenyl-phosphane mol-ecules and two O atoms of the chelating dimeth-yl(phenyl-sulfon-yl)amido-phosphate anion, generating a squashed CuO2P2 tetrahedron. In the six-membered chelate ring, the Cu, P and O atoms are almost coplanar (r.m.